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Global Tropospheric Experiment Transport and Chemical Evolution over the Pacific (TRACE-P) Langley ASDC Data Set Document

Image representing the GTE Project.

Summary

This document provides information on data products obtained during the GTE TRACE-P atmospheric science expedition conducted over the western Pacific during February, March and April, 2001. The objective of the mission was to determine the chemical composition of the Asian outflow and evolution over the western Pacific. Measurements were made primarily by investigators' instruments located on the NASA DFRC DC-8 and WFF P-3B airplanes. Also provided are a list of principal investigators and references for measurement techniques and publications.

This document provides information for the following data sets:

DC-8 Aircraft:

Where XX indicates the flight number.

gte_tracep_dc8flight_insitu_XX.zip: Chemical & Aerosol In Situ Measurements
gte_tracep_dc8flight_project_XX.zip: Aircraft Ephemeras & Meteorological Data
gte_tracep_merged_dc8_fltXX.zip: Merged Chemical, Aerosol & Ephemeras Data Files
gte_tracep_beoz1dXX.zip: DIAL Ozone Profiles
gte_tracep_bevs1dXX.zip: DIAL Visible Aerosol Scattering
gte_tracep_betc1dXX.zip: DIAL Tropopause Height and Ozone Column
gte_tracep_bewd1dXX.zip: DIAL Depolarization Aerosol Scattering
gte_tracep_bedp1dXX.zip: DIAL Visible Aerosol Depolarization
gte_tracep_beir1dXX.zip: DIAL Aerosol Scattering 1064nm
gte_tracepdc8_cld_index.zip: Cloud Index
gte_tracep_dc8_sat_images_trkmXX.zip: IR, Visible, and Water Vapor Satellite Images
gte_tracep_dc8_traj_images_fltXX.zip: Plot of Backward Air mass Trajectories
gte_tracep_dc8_traj_tab_fltXX.zip: Tabulated Data of Backward Air mass Trajectories

P3-B Aircraft:

Where XX indicates the flight number.

gte_tracep_p3bflight_insitu_fltXX.zip: P3-B Chemical & Aerosol In Situ Measurements
gte_tracep_p3bflight_project_fltXX.zip: P3-B Aircraft Ephemeras & Meteorological Data
gte_tracep_merged_p3b_fltXX.zip: P3-B Merged Chemical, aerosol & Ephemeras Data Files
gte_tracep_tams1pXX.zip: P3-B 10hz Turbulent air motion measurements
gte_tracep_p3b_sat_images_trkmXX.zip: IR, Visible, and Water Vapor Satellite Images
gte_tracep_p3b_traj_images_fltXX.zip: Plot of Backward Air mass Trajectories
gte_tracep_p3b_traj_tab_fltXX.zip: Tabulated Data of Backward Air mass Trajectories

TRACE-P Ancillary Data:

gte_tracep_ftir_ground.zip: Ground Based FTIR Measurements of C2H2, C2H6, CO, and HCN
gte_tracep_prc_plots_2001mmdd-2001mmdd.zip: Ground Based Observations in PRC
gte_tracep_2001mmdd.zip: Satellite Data Products During TRACE-P Mission Period
gte_tracep_ozonesondes_Kagoshima.zip: Data from Ozone Sonde Launches at Kagoshima, Japan (other files for launches at Naha, Sapporo, and Tateno, Japan; Cheju, Korea; Hilo, Hawaii, USA; Hong Kong, PRC; Taipei, Taiwan; Trinidad Head, CA, USA)

Acknowledgment

NASA funded the investigators involved in the TRACE-P mission. The funded investigators, their organization, and their grant, agreement or contract number was:

Investigator Organization Number
Aircraft:
B. AndersonNASA LangleyN/A
E. ApelNCARNCC-1-420
E. AtlasNCARNCC-1-418
M. AveryNASA LangleyN/A
A. BandyDrexel UNCC-1-409
D. BlakeU of California IrvineNCC-1-413
E. BrowellNASA LangleyN/A
B. BrunePennsylvania State UNCC-1-414
C. CantrellNCARNCC-1-424
A. ClarkeU of HawaiiNCC-1-416
F. EiseleGeorgia TechNCC-1-421
F. FlockeNCARNCC-1-423
A. FriedNCARNCC-1-419
B. HeikesU of Rhode IslandNCC-1-408
G. SachseNASA LangleyN/A
S. SandholmGeorgia TechNCC-1-417
R. ShetterNCARL-14366
H. SinghNASA AmesN/A
R. TalbotU of New HampshireNCC-1-410
R. WeberGA TechNCC-1-411
Surface Measurements:
S. OltmansNOAA CMDLL-12923
Modeling:
G. CarmichaelU of IowaNCC-1-422
J. CrawfordNASA LangleyN/A
D. DavisGeorgia TechNCC-1-01024
H. FuelbergFlorida State UNCC-1-412
D. JacobHarvardNAG-1-2328
R. NewellMass. Inst. Of Tech.NCC-1-415
M. PratherU of California-IrvineNAG-1-01001
A. ThompsonNASA GoddardN/A

Table of contents

  1. Collection Overview
  2. Applications and Derivation
  3. Data Description and Access
  4. Data Characteristics
  5. Usage Guidance
  6. Acquisition Materials and Methods
  7. References
  8. Acronyms
  9. Document Information

1. Collection Overview

a. Collection Contents

Aircraft data sets are available for each investigation for each flight. Ground-based data are usually available on a daily basis. Airborne measurements were typically obtained at constant altitude over the Pacific Ocean during the transit flights (i.e. "survey" flights), and over multi-altitudes closer to Asia during flight from the intensive sites. Flight missions were conducted during TRACE-P from February 24, through April 10, 2001. Flight dates, takeoff and landing times and sites, and flight tracks and profiles are shown in Jacob et al., [2003]. The duration, altitude range, ascent and descent rate, and flight path for each mission varied depending on mission objectives and environmental conditions. Ground-based measurements were made at sites also shown in Jacob et al., [2003]. The automated ground sites provided daily measurements during the time frame when airborne measurements were being made and weekly averaged samples before and after. Further information about the measurement region and time frame may be found in the Journal of Geophysical Research, Vol. 108, No. 20, October 27, 2003.

Data Set Introduction

This data collection contains 12 separate data sets. These include the atmospheric chemistry, meteorological and navigational data recorded aboard the NASA DFRC DC-8 and WFF P-3B airborne laboratories and data obtained from surface level sites.

Summary of Data Sets

DC-8 Aircraft:

Where XX indicates the flight number.

gte_tracep_dc8flight_insitu_XX.zip - Chemical & Aerosol In Situ Measurements
gte_tracep_dc8flight_project_XX.zip - Aircraft Ephemeras & Meteorological Data
gte_tracep_merged_dc8_fltXX.zip - Merged Chemical, Aerosol & Ephemeras Data Files
gte_tracep_beoz1dXX.zip - DIAL Ozone Profiles
gte_tracep_bevs1dXX.zip - DIAL Visible Aerosol Scattering
gte_tracep_betc1dXX.zip - DIAL Tropopause Height and Ozone Column
gte_tracep_bewd1dXX.zip - DIAL Depolarization Aerosol Scattering
gte_tracep_bedp1dXX.zip - DIAL Visible Aerosol Depolarization
gte_tracep_beir1dXX.zip - DIAL Aerosol Scattering 1064nm
gte_tracepdc8_cld_index.zip - Cloud Index
gte_tracep_dc8_sat_images_trkmXX.zip - IR, Visible, and Water Vapor Satellite Images
gte_tracep_dc8_traj_images_fltXX.zip - Plot of Backward Air mass Trajectories
gte_tracep_dc8_traj_tab_fltXX.zip - Tabulated Data of Backward Air mass Trajectories

P3-B Aircraft:

Where XX indicates the flight number.

gte_tracep_p3bflight_insitu_fltXX.zip - P3-B Chemical & Aerosol In Situ Measurements
gte_tracep_p3bflight_project_fltXX.zip - P3-B Aircraft Ephemeras & Meteorological Data
gte_tracep_merged_p3b_fltXX.zip - P3-B Merged Chemical, aerosol & Ephemeras Data Files
gte_tracep_tams1pXX.zip - P3-B 10hz Turbulent air motion measurements
gte_tracep_p3b_sat_images_trkmXX.zip - IR, Visible, and Water Vapor Satellite Images
gte_tracep_p3b_traj_images_fltXX.zip - Plot of Backward Air mass Trajectories
gte_tracep_p3b_traj_tab_fltXX.zip - Tabulated Data of Backward Air mass Trajectories

TRACE-P Ancillary Data:

gte_tracep_ftir_ground.zip - Ground Based FTIR Measurements of C2H2, C2H6, CO, and HCN
gte_tracep_prc_plots_2001mmdd-2001mmdd.zip - Ground Based Observations in PRC
gte_tracep_2001mmdd.zip - Satellite Data Products During TRACE-P Mission Period
gte_tracep_ozonesondes_Kagoshima.zip - Data from Ozone Sonde Launches at Kagoshima, Japan (other files for launches at Naha, Sapporo, and Tateno, Japan; Cheju, Korea; Hilo, Hawaii, USA; Hong Kong, PRC; Taipei, Taiwan; Trinidad Head, CA, USA)

The preceding data sets are available from the Langley ASDC. See the GTE home page for additional description of the TRACE-P field mission.

b. Related Data Collections

TRACE-P investigators have individually reported the results of their investigations in the Journal of Geophysical Research, Vol. 108, No. 20 and 21, October 27 and November 16, 2003.

There are data sets available from the Langley ASDC and from the GTE Home Page for 13 other GTE missions conducted from 1983 to 2001. See the GTE home page and the Langley ASDC GTE Data Table for a description of the available data.

c. Title of Investigation

Global Tropospheric Experiment Transport and Chemical Evolution over the Pacific (TRACE-P)

d. Investigator Name and Title

If the person is known to be retired, deceased or no longer at the organization originally responsible for the investigation, it is noted and the contact information may be omitted. The contact information provided was current during the mission, but may no longer be current.

DC-8 Measurements Investigators

Investigator for Aerosols and Condensation Nuclei

Bruce E. Anderson
NASA Langley Research Center
Mail Stop 483
Hampton VA 23681
Telephone: 757-864-5850
Fax: 757-864-5841
E-mail: b.e.anderson@larc.nasa.gov

Investigator for Alcohols and Aldehydes

Eric C. Apel
NCAR-ACD
1850 Table Mesa Drive
Boulder CO 80305
Telephone: 303-497-1452
Fax: 303-497-1477
E-mail: apel@acd.ucar.edu

Investigator for C1-C4 Alkyl Nitrates and Selected Hydrocarbons

Elliot Atlas
NCAR
Atmospheric Chemistry Division
P. O. Box 3000
1850 Table Mesa Drive
Boulder CO 80307
Telephone: 303-497-1425
Fax: 303-497-1400
E-mail: atlas@acd.ucar.edu

Investigators for In-situ Ozone and Carbon Dioxide

Melody Avery -- Responsible for the measurement of ozone
MS 483
NASA Langley Research Center
Hampton VA 23681-0001
Telephone: 757-864-5522
Fax: 757-864-5841
E-mail: m.a.avery@larc.nasa.gov

Stephanie Vay -- Responsible for the measurement of carbon dioxide
MS 483
NASA Langley Research Center
Hampton VA 23681-0001
Telephone: 757-864-1574
Fax: 757-864-5841
E-mail: s.a.vay@larc.nasa.gov

Investigator for Airborne Meteorological/Position Data

John D. Barrick
MS 483
NASA Langley Research Center
Hampton VA 23681-0001
Telephone: 757-864-5831
Fax: 757-864-5841
E-mail: j.d.barrick@larc.nasa.gov

Investigator for Speciated Non Methane Hydrocarbons (C2-C10), CH4, Halocarbons including Methyl Halides, C1-C4 Alkyl Nitrates, and DMS

Don Blake
University of California-Irvine
Department of Chemistry
Irvine, CA 92717
Telephone: 949-824-4195
Fax: 949-824-2905
E-mail: drblake@uci.edu

Investigator for Aerosol and Ozone Profiles

Edward V. Browell
Mail Stop 401A
NASA Langley Research Center
Hampton VA 23681-0001
Telephone: 757-864-1273
Fax: 757-864-7790
E-mail: e.v.browell@larc.nasa.gov

nvestigator for OH and HO2

Bill Brune
Penn State University
Dept. of Meteorology
503 Walker Building
University Park PA 16802-5013
Telephone: 814-865-3286
Fax: 814-865-3663
E-mail: brune@essc.psu.edu

Investigator for Formaldehyde

Alan Fried
NCAR-ACD
P O Box 3000
Boulder CO 80305
Telephone: 303-497-1475
Fax: 303-497-1492
E-mail: fried@acd.ucar.edu

Investigator for H2O2, CH3OOH and CH2O

Brian G. Heikes
University of Rhode Island
Graduate School of Oceanography
South Ferry Road
Narragansett, RI 02882-1197
Telephone: 401-874-6810/6683
Fax: 401-874-6898
E-mail: zagar@notos.gso.uri.edu

Investigator for Carbon Monoxide, Methane, Nitrous Oxide, Water Vapor

Glen W. Sachse
MS 472
NASA Langley Research Center
Hampton VA 23681-0001
Telephone: 757-864-1566
Fax: 757-864-8818
E-mail: g.w.sachse@larc.nasa.gov

Investigator for Nitric Oxide, Nitrogen Dioxide

Scott Sandholm
Georgia Institute of Technology
Earth and Atmospheric Sciences
Baker Building, Room 107
923 Dalney Street
Atlanta GA 30332-0340
Telephone: 404-894-3895/3824
Fax: 404-894-5073
E-mail: ss27@prism.gatech.edu

Investigator for Photolysis Rate Coefficients and Total Solar Actinic Flux as a Function of Wavelength

Richard Shetter
NCAR
Atmospheric Chemistry Division
1850 Table Mesa Drive
Boulder CO 80303
Telephone: 303-497-1420
Fax: 303-497-1400
E-mail: shetter@ncar.ucar.edu

Investigator for PAN, Acetone, Alcohols, Organic Nitrates

Hanwant Singh
NASA Ames Research Center
Singh Group
Mail Stop 245-5
Moffett Field, CA 94035
Telephone: 415-604-6769
Fax: 415-604-3265
E-mail: hb_singh@arc.nasa.gov

Investigator for Aerosol soluble ions and radionuclides; Nitric Acid and SO2

Robert W. Talbot
University of New Hampshire
Institute of Earth, Oceans, Space
Morse Hall
Complex Systems Research Center
Durham NH 03820
Telephone: 603-862-1546
Fax: 603-862-0188
E-mail: rwt@christa.unh.edu

P-3B Measurements Investigators

Investigator for C1-C4 Alkyl Nitrates and Selected Hydrocarbons

Elliot Atlas
(See prior listing under DC-8 investigators)

Investigator for In-situ Ozone and Carbon Dixiode

Melody Avery - Responsible for the measurement of ozone
Stephanie Vay - Responsible for the measurement of carbon dioxide
(See prior listing under DC-8 investigators)

Investigator for SO2

Alan R. Bandy
Drexel University
Department of Chemistry
32nd and Chestnut Street
Philadelphia PA 19104
Telephone: 215-895-2640
Fax: 215-895-1980
E-mail: abandy@ac1.chemistry.drexel.edu

Investigator for Airborne Meteorological/Position Data

John D. Barrick
MS 483
NASA Langley Research Center
Hampton VA 23681-0001
Telephone: 757-864-5831
Fax: 757-864-5841
E-mail: j.d.barrick@larc.nasa.gov

Investigator for Speciated Non Methane Hydrocarbons (C2-C10), CH4, Halocarbons including Methyl Halides, C1-C4 Alkyl Nitrates, and DMS

Don Blake
(See prior listing under DC-8 investigators)

Investigator for HO2,RO2

Christopher A. Cantrell
NCAR-ACD
1850 Table Mesa Drive
Boulder CO 80305
Telephone: 303-497-1479
Fax: 303-497-1492
E-mail: cantrell@ucar.edu

Investigator for Aerosol size/number distribution, black carbon, in-situ aerosol light scattering coefficient, and condensation nuclei

Antony Clarke
University of Hawaii
Dept. of Oceanography
1000 Pope Road
Honolulu HI 96822
Telephone: 808-956-6215
Fax: 808-956-7112
E-mail: tclarke@soest.hawaii.edu

Investigator for OH, H2SO4, MSA, HNO3

Fred Eisele
Georgia Institute of Technology
1850 Table Mesa Drive
Boulder Co 80303
Telephone: 303-497-1483
Fax: 303-497-1400
E-mail: eisele@cmdl1.cmdl.erl.gov

Investigator for PAN, PPN, PiBN, MPAN

Frank Flocke
NCAR-ACD
1850 Table Mesa Drive
Boulder CO 80305
Telephone: 303-487-1457
Fax: 303-497-1477
E-mail: ffl@acd.ucar.edu

Investigator for NO, NO2

Yutaka Kondo
University of Tokyo
Research Center for Advanced Science and Technology
4-6-1 Komaba
Meguro-KU
Tokyo 153-8904 Japan
Telephone: 81-3-5452-5145
Fax: 81-3-5841-4586
E-mail: kondo@atmos.rcast.u-tokyo.ac.jp

Investigator for Carbon Monoxide, Methane

Glen W. Sachse
(See prior listing under DC-8 investigators)

Investigator for Photolysis Rate Coefficients and Total Solar Actinic Flux as a Function of Wavelength

Richard Shetter
(See prior listing under DC-8 investigators)

Investigator for Turbulent Air Motion Measurements

Lee Thornhill
SAIC/NASA Langley Research Center
Mail Stop 483
NASA Langley Research Center
Hampton, VA 23681
Telephone: 757-864-5169
e-mail: k.l.thornhill@larc.nasa.gov

Investigator for Ultra-fine aerosols and Aerosol Composition

Rodney J. Weber
GA Tech
Earth and Atmospheric Sciences Department
221 Bobby Dodd Way
Atlanta GA 30332-0340
Telephone: 404-894-1750
Fax: 404-894-1106
E-mail: rweber@eas.gatech.edu

Surface Measurements

Investigator for column content of CO, C2H6, and HCN

Makoto Koike
University of Tokyo
Department of Earth and Planetary Sciences
Graduate School of Science
7-3-1 Hongo, bunkyo-Ku
Tokyo 113-0033 Japan
Telephone: 81-3-5841-4595
Fax: 81-3-5841-4586
E-mail: koike@eps.s.u-tokyo.ac.jp

Investigator for Ozonesondes

Samuel J. Oltmans
NOAA
Climate Monitoring and Diagnostics Lab
325 Broadway
Boulder CO 80303
Telephone: 303-497-6676
Fax: 303-497-6290
E-mail: soltmans@cmdl.noaa.gov

Concurrent Collaborative Missions

Barry Huebert
ACE Asia
Department of Oceanography
School of Ocean and Earth Science and Technology
University of Hawaii-Manoa
1000 Pope Road
Honolulu, HI 96822
Telephone: 808-956-6896
Fax: 808-956-9225
E-mail: huebert@hokulea.soest.hawaii.edu

Toshihiro Ogawa
Bible Phase C
Director, Earth Observation Research Center
NASDA
1-9-9, Roppongi, Minato-Ku
Tokyo, 106-0032 Japan
Telephone: 81-3-3224-7080
Fax: 81-3-3224-7051
E-mail: t_ogawa@eorc.nasda.go.jp

John Gille
MOPITT
3300 Mitchell Lane, Suite 275
University of Colorado/NCAR
Boulder Co 80301
Telephone: 303-497-1402
Fax: 303-497-1492
E-mail: gille@ucar.edu

Daniel Jaffe
Aircraft and Ground Measurements
University of Washington-Bothall
18115 Campus Way NE
Bothell WA 98011-8246
Telephone: 425-352-5357
Fax: 425-352-5335
E-mail: djaffe@u.washington.edu

William Smith
NAST/PROTEUS
NASA Langley Research Center
Mail Stop 401
Hampton VA 23681
Telephone: 757-864-5914
Fax: 757-864-8197
E-mail: bill.l.smith@larc.nasa.gov

Other Collaborative Efforts

Toshifumi Fujimoto
Ozone Layer Monitoring Office
Japan Meteorological Agency
1-3-4, Ote-machi, Chiyoda-ku, Tokyo, 100-8122 Japan
Telephone: 81-3-3287-3439
Fax: 81-3-3211-4640
E-mail: fujimoto@met.kishou.go.jp

Lo-Yin Chan
Department of Civil and Structural Engineering
Hong Kong Polytechnic University
Hung Hom Kowloon Hong Kong
Telephone: 852-2766-6071
Fax: 852-2554-6589
E-mail: celychan@inet.polyu.edu.hk

Anne Thompson
SHADOZ
NASA GSFC Code 916
Building 33, Room E417
Greenbelt MD 20771
Telephone: 301-614-5731
Fax: 301-614-5903
E-mail: thompson@gator1.gsfc.nasa.gov

H. K. Lam
Director, Hong Kong Observatory
134A Nathan Road
Kowloon, Hong Kong
Telephone: 2926 8221
Fax: 2721 6557
E-mail: dhko@hko.gcn.gov.hk

Jen-Ping Chen
Department of Atmospheric Sciences
National Taiwan University
No. 61, Ln. 144, Sec. 4, Keelung Road
Taipei, Taiwan 106, R. O. C.
Telephone: 886-2-23633317
Fax: 886-2-2363-3642
E-mail: jpchen@water.as.ntu.edu.tw

Jae Kim
Department of Atmospheric Science
Pusan National University
Korea 609-735
Telephone:
Fax:
E-Mail: jaekim@subunim.com

John Henessy
Head, Meteorological Applications Section
ECMWF
Shinfield Park
Reading, RG2 9AX, England
Telephone: 44-118-949-9400
Fax: 44-118-986-9450
E-mail: j.hennessy@ecmwf.int

Tao Wang
Hong Kong Polytechnic University
Department of Civil and Structural Engineering
Hung Hom
Kowloon
Hong Kong
Telephone: 852-2766-6059
Fax: 852-2334-6389
E-mail: cetwang@polyu.edu.hk

Robert Atlas
NASA GSFC Data Assimilation Office
Code 910.3
Building 33
Greenbelt MD 20771
Telephone: 301-614-6140
Fax: 301-614-6297
E-mail: ratlas@dao.gsfc.nasa.gov

Hsiu-Wu Chang
Central Weather Bureau
64 Kung Yuan Road
Taipei, Taiwan 100, R. O. C.
Telephone: 886-2-23491026
Fax: 886-2-349-1029
E-mail: hsiuwu@cwb.gov.tw

Modelers: Proposal Title and Principal Investigator

Regional Scale Forecasting and Experiment-Specific Emission Estimates of Gas and Aerosol Distributions in Support of the TRACE-P Experiment

Gregory R. Carmichael
University of Iowa
Chemical and Biochemical Engineering
125B Chemistry Building
Iowa City IA 52242
Telephone: 319-335-1399
Fax: 319-335-3337
E-mail: gcarmich@icean.uiowa.edu

Tropospheric Modeling Studies of TRACE-P Field Data: Investigation of the HOx/NOx/O3 Photochemical System and Regional Assessment of Stratosphere-Troposphere Exchange

James Crawford
NASA Langley Research Center
Mail Stop 483
Hampton VA 23681
Telephone: 757-864-7231
Fax: 757-864-5841
E-mail: j.h.crawford@larc.nasa.gov

Tropospheric Modeling Studies of TRACE-P Data: Investigation of the HOx/NOx/O3 Photochemical System and its Coupling to Sulfur/Aerosol Species

Douglas Davis
Georgia Institute of Technology
School of Earth and Atmospheric Sciences
Room 108
221 Bobby Dodd Way
Atlanta GA 30332-0340
Telephone: 404-894-9565
Fax: 404-894-1993
E-mail: dd16@prism.gatech.edu

Forecasting of Tracer Fields During TRACE-P with the Global Climate Model ECHAM

Johann Feichter
Max Planck Institut Fuer Meteorologie
Bundesstrasse 55, Room PE41
Hamburg 20146 Germany
Telephone: 49-40-41173-317
Fax: 49-40-41173-298
E-mail: feichter@dkrz.de

Numerical Simulations and Diagnostic Studies Relating Meteorology to Atmospheric Chemistry During TRACE-P

Henry Fuelberg
Florida State University
Dept. of Meteorology
Tallahassee FL 32306-4520
Telephone: 850-644-6466
Fax: 850-644-9642
E-mail: fuelberg@huey.met.fsu.edu

Analysis of Asian Outflow Over the Western Pacific Using Observations From TRACE-P

Daniel Jacob
Harvard University
Department of Engineering and Applied Sciences
Pierce Hall, Room 109A
29 Oxford Street
Cambridge MA 02138
Telephone: 617-495-1794
Fax: 617-495-4551
E-mail: djj@io.harvard.edu

Meteorological Analysis for TRACE-P

Reginald Newell (deceased 12/27/02)
Massachusetts Institute of Technology
Earth, Atmospheric and Planetary Sciences

Regional Chemistry from Global CTMs with EC-Modeled Met-fields for the TRACE-P Mission

Michael J. Prather
University of California-Irvine
Earth System Science Department
Irvine CA 92697-3100
Telephone: 949-824-5838
Fax: 949-824-3256
E-mail: mprather@uci.edu

Tracer Transport during TRACE-P: Flight Planning and Interpretation with Satellite Maps, Ozone Profiles and Trajectory-based Analysis Tools

Anne Thompson
NASA Goddard Space Flight Center
Code 916
Bldg. 33, Room E417
Greenbelt MD 20771
Telephone: 301-286-2629
Fax: 301-614-5903
E-mail: thompson@gator1.gsfc.nasa.gov

SAGE II Aerosol and Ozone Measurements Support for the TRACE P Field Experiment

Charles R. Trepte
NASA Langley Research Center
Mail Stop 475
Hampton VA 23681
Telephone: 757-864-5836
Fax: 757-864-2671
E-mail: c.r.trepte@larc.nasa.gov

e. Technical Contact(s)

The following persons have more specialized knowledge than the investigators listed in Section 1.d, as indicated, about the data in the data sets.

Measurements for DMS, SO2 on P-3B

Donald C. Thornton
Drexel University
Department of Chemistry
32nd and Chestnut Street
Philadelphia PA 19104
Telephone: 215-895-2657
Fax: 215-895-1980
E-mail: dct@drexel.edu

The following persons have either specialized knowledge in their field or general knowledge about the mission, its execution and the data sets. Where a person is noted as being retired, the contact information given was current during the mission and the person may no longer be available through this location.

TRACE-P Mission Scientist and Deputy Mission Scientist

Daniel Jacob and James Crawford (see prior listings)

TRACE -P Program Manager

Vickie S. Connors (acting)
MS 401B
NASA Langley Research Center
Hampton VA 23681-0001
Telephone: 757-864-5849
E-mail: v.s.connors@larc.nasa.gov

TRACE-P Project Manager

Richard J. Bendura (retired)
NASA Langley Research Center

TRACE-P Mission Meteorologists

Reginald Newell & Henry Fuelberg
(see prior listings under Modelers section)

DC-8 Aircraft Manager

Darrell Winfield (no longer at NASA)
Walter Klein
NASA Dryden Flight Research Center
MS D1623H
Bldg. 1623, Room 204
Edwards CA 93523-0273
Telephone: 661-276-3243
Fax: 661-277-7746
E-mail: walter.klein@dfrc.nasa.gov

OR Contact:

Airborne Science Program Office
MS D1623H
Edwards, CA 93523-0273
Phone: (661) 276-7453
Fax: (661) 276-3719
Email: airsci.program.coordinator@dfrc.nasa.gov

P-3B Aircraft Manager

Richard Bradford (retired)

OR Contact:

Wallops Flight Facility Aircraft Office
NASA Wallops Flight Facility
Wallops Island,VA 23337-5099
Telephone: 757-824-1529

TRACE-P Logistics

Mike Cadena
SAIC
One Enterprise Parkway, Suite 300
Hampton VA 23666
Telephone: 757-827-4860
Fax: 757-896-3848
E-mail: m.j.cadena@larc.nasa.gov

Erika Harper
SAIC
One Enterprise Parkway, Suite 300
Hampton VA 23666
Telephone: 757-827-4858
Fax: 757-896-3848
E-mail: e.n.harper@larc.nasa.gov

TRACE-P Experiment Integration

DC-8: James L. Raper, Sr. (retired)
NASA Langley Research Center
P-3B: John G. Wells
NASA Langley Research Center
Mail Stop 401B
Hampton VA 23681
Telephone: 757-864-1859
Fax: 757-864-6326
E-mail: j.g.wells@larc.nasa.gov

GTE/TRACE-P Webmaster

P. Kay Costulis
MS 423
NASA Langley Research Center
Hampton VA 23681-2199
Telephone: 757-864-1943
Fax: 757-864-2671 or 7996
E-mail: p.k.costulis@larc.nasa.gov

2. APPLICATIONS AND DERIVATION

Potential usage and applications of the described data sets can be seen in the articles that comprise the Journal of Geophysical Research TRACE-P Special Section (Vol.108, No. 20 and 21, October 27 and November 16, 2003) and the Fall 2002 AGU TRACE-P Special Session(s).

a. Calculated Variables

For convenience of the users, the calculated variables below are provided.

Mach Number, M:

Equation for Mach Number. M = Mach Number
Ps = Static Pressure
Qc = Differential Pressure

Static Air Temperature, Ts:

Equation for Static Air Temperature. TS = Static Air Temperature (°K)
TT = Total Air Temperature (°K)
γ = 1.4, ratio of specific heat of air at constant pressure and volume

True Air Speed, TAS:

Equation for True Air Speed. TAS = True Air Speed (knots)
TS = Static Air Temperature (°K)
M = Mach Number
a = Speed of Sound

Potential Temperature, θ:

Equation for Potential Temperature. θ = Potential Temperature (°K)
TS = Static Air Temperature (°K)
Ps = Static Pressure (mb)

Vapor Pressure, e :

ewater (mb) = [1.0007 + (3.46 * 10-6 * PS)] * 6.1121* EXP[17.502 * T/(240.97 + T)]

eice (mb) = [1.0003 + (4.18 * 10-6 * PS)] * 6.1115* EXP[22.452 * T/(272.55 + T)]

e = Partial Pressure of Water Vapor (mb)
PS = Static Pressure (mb)
T = Static Air Temperature (°C) for Saturation Vapor Pressure
or
T = Dew/Frost Point (°C) for Partial Pressure of Water Vapor

Note:
  1. ProjDP of zero or greater should be used to derive the partial pressure of water vapor w.r.t water (ewater ) and the ProjDP less than zero should be used to derive the partial pressure of water vapor w.r.t ice (eice).

  2. StatTempDegC and ProjDP parameters recorded in the P-3B data set are substituted to calculate saturation vapor pressure and partial pressure of water vapor, respectively.

  3. TSDEGC and ProjDP parameters recorded in the DC-8 data set are substituted to calculate saturation vapor pressure and partial pressure of water vapor, respectively. Also notice in the DC-8 data set there is a redundant static air temperature measurement, TSCALC, which is calculated by DADS. Although TSDEGC and TSCALC track closely they can diverge by ≈ 1° at the low and high ends of the measurement range.

Specific Humidity, q:

Equation for Specific Humidity q(g/kg). Equation for Specific Humidity q(ppmw).

Mixing Ratio, r:

Equation for Mixing Ratio r(g/kg). Equation for Mixing Ratio r(ppmw).
Note:
ppmv = 1.608 * ppmw
ppmw = 0.622 * ppmv

Relative Humidity, %:

w.r.t. water,
Equation for Relative Humidity for water.
w.r.t. ice,
Equation for Relative Humidity for ice.

b. Graphs and Plots:

Interested readers should see the Journal of Geophysical Research, Vol. 108, No. 20 and 21, October 27 and November 16, 1003, and documents referenced therein, for plots and the results of analysis of data.

3. DATA DESCRIPTION AND ACCESS

a. Format

See the GTE Data Format Document.

b. Data Organization

Granularity

A general description of data granularity as it applies to the IMS appears in the EOSDIS Glossary. Aircraft data sets are available for each individual investigation for each flight through the GTE home page (htt;//www-gte.larc.nasa.gov) and for each flight (all investigation) from the Atmospheric Science Data Center. Surface level data are available on a daily basis from both sites.

c. Data Collection Status and Plans

All data for the TRACE-P mission is contained in the archive. The only additional data products anticipated relevant to TRACE-P are 210Pb from Robert Talbot (University of New Hampshire) and will be added to the archive when received by the GTE project office.

d. Data Access

This data is available online or ona CDROM(s) via the LaRC ASDC at http://eosweb.larc.nasa.gov. Users may also order data by letter, telephone, and electronic mail from the ASDC.

e. Data Archive Center

The Atmospheric Science Data Center at NASA Langley Research Center and the GTE data archive.

Contacts for Data Center or Data Access Information:

User and Data Services Office
Atmospheric Science Data Center
MS 157D
Langley Research Center
Hampton, VA 23681 USA
Phone: 757-864-8656
Fax: 757-864-8807
E-mail: larc@eos.nasa.gov
Internet: http://eosweb.larc.nasa.gov

f. How to Cite the Data Collection

Publication of a portion(s) of the data archive should acknowledge the principal investigator(s) responsible for the data by referencing the appropriate manuscript in the Journal of Geophysical Research, Vol. 108, No. 20 and 21, October 27 and November 16, 2003.

4. DATA CHARACTERISTICS:

a. Study Area

Airborne measurements were made predominately over the western Pacific Ocean. A more detailed description of the surface level environmental characteristics for the experiment region is provided in the individual papers for each investigation included in the Journal of Geophysical Research, Vol. 108, No. 20 and 21, October 27 and November 16, 2003. Additional information may be found in other publications authored by the principal investigators or on the GTE home page.

Spatial Coverage

TRACE-P geographic coverage for the intensive flights out of Hong Kong and Yokota Air Force, Japan was approximately 110E-160E and 10N to 50N. Additional information can be found in the TRACE-P mission overview paper, Jacob et al., [2003].

Flight missions were conducted during February, March and April 2001. Also shown are the takeoff and landing sites. The duration, altitude ranges, ascent and descent rate and flight path of each mission varied depending on the mission objectives and environmental (weather) conditions. The nominal airspeed ranged from greater than 480 knots (approximately 552 mph) at 13 km altitude for the DC-8 to greater than 130 knots (approximately 152 mph) at 7.7 km altitude.

Data Set Name Min Lat Max Lat Min Lon Max Lon
DC-8 Aircraft:
  • gte_tracep_dc8flight_insitu_XX.zip - Chemical & Aerosol In Situ Measurements
  • gte_tracep_dc8flight_project_XX.zip - Aircraft Ephemeras & Meteorological Data
  • gte_tracep_merged_dc8_fltXX.zip - Merged Chemical, Aerosol & Ephemeras Data Files
  • gte_tracep_beoz1dXX.zip - DIAL Ozone Profiles
  • gte_tracep_bevs1dXX.zip - DIAL Visible Aerosol Scattering
  • gte_tracep_betc1dXX.zip - DIAL Tropopause Height and Ozone Column
  • gte_tracep_bewd1dXX.zip - DIAL Depolarization Aerosol Scattering
  • gte_tracep_bedp1dXX.zip - DIAL Visible Aerosol Depolarization
  • gte_tracep_beir1dXX.zip - DIAL Aerosol Scattering 1064nm
0N 45N 105E 120W
P3-B Aircraft:
  • gte_tracep_p3bflight_insitu_fltXX.zip - Chemical & Aerosol In Situ Measurements
  • gte_tracep_p3bflight_project_fltXX.zip - Aircraft Ephemeras & Meteorological Data
  • gte_tracep_merged_p3b_fltXX.zip - Merged Chemical, aerosol & Ephemeras Data Files
  • gte_tracep_tams1pXX.zip - 10hz Turbulent air motion measurements
0N 45N 105E 75W
gte_tracep_dc8_traj_images_fltXX.zip - Plot of Backward Air mass Trajectories
gte_tracep_dc8_traj_tab_fltXX.zip - Tabulated Data of Backward Air mass Trajectories
0N 45N 105E 120W
gte_tracepdc8_cld_index.zip - Cloud Index 10N 50N 110W 120W
gte_tracep_p3b_traj_images_fltXX.zip - Plot of Backward Air mass Trajectories
gte_tracep_p3b_traj_tab_fltXX.zip - Tabulated Data of Backward Air mass Trajectories
0N 45N 105E 75W
gte_tracep_p3b_sat_images_trkmXX.zip - IR, Visible, and Water Vapor Satellite Images
gte_tracep_2001mmdd.zip - Satellite Data Products During TRACE-P Mission Period
0N 45N 105E 120W
gte_tracep_prc_plots_2001mmdd-2001mmdd.zip - Ground Based Observations in PRC 87.6N 126.6N 20.0E 45.7E
gte_tracep_ftir_ground.zip - Ground Based FTIR Measurements of C2H2, C2H6, CO, and HCN 36.2N 44.4N 140.1E 143.8E

Ozonesonde Launch Site Latitude Longitude
Trinidad Head, CA 40.8N 124.2W
Hilo, Hawaii 19.4N 155.0W
Cheju, Korea 33.5N 126.5E
Hong Kong Observatory 22.3N 114.2E
Kagoshima, Japan 31.6N 130.6E
Naha, Japan 26.2N 127.7E
Sapporo, Japan 43.1N 141.3E
Tateno, Japan 36.1N 140.1E
Taipei, Taiwan 25.0N 121.4E

Spatial and Temporal Resolution

Resolution varies for each measurement. See Kleb and Scott, [2003a] and [2003b].

See the next section Grid Description for information about the meteorological trajectories. Ozonesondes were launched from nine ground stations.

Ozone data are found at: Satellite images are found at:

Grid Description

The meteorological trajectories utilized global gridded meteorological analyses prepared by the European Centre for Medium-Range Weather Forecasts (ECMWF) [Bengtsson, 1985; Hollingsworth et al., 1986, ECMWF, 1995]. The data were available four times daily (0000, 0600, 1200, and 1800 UTC) at 60 vertical levels with a T319 spherical harmonic triangular truncation, interpolated to a 1° x 1° latitude-longitude horizontal grid. The five-day backward trajectories were calculated using a kinematic model, i.e., employing u, v, and w wind components from the ECMWF analyses. Additional details about the trajectory model are given in Fuelberg et al. [1996, 1999, 2000]. Limitations of trajectories are described by Fuelberg et al. [2000], Maloney et al. [2001], Stohl [1995], and Stohl et al. [1998].

b. Temporal Coverage

TRACE-P aircraft missions were conducted from February 24 through April 10, 2001. Temporal coverage for the DC-8 and P-3B data, meteorological trajectories, and the merged data is from February 24 through April 10, 2001. Ground site measurements and satellite image start dates and end dates are listed below. Ozonesondes were launched from nine ground stations and ozonesonde data are found at ftp://ftp-gte.larc.nasa.gov/pub/TRACEP/OZONESONDES/ or http://www-gte.larc.nasa.gov/trace/TP_Ozonesondes.htm. Visible, infrared, and water-vapor satellite images from GMS-5, GOES-8 and GOES-10 satellites at 4-km resolution were created using McIDAS software for the 2001 TRACE-P field mission. The images can be found at ftp://ftp-gte.larc.nasa.gov/pub/TRACEP/DC8-AIRCRAFT/FLIGHT_TRACKS/.

Data Set Description Begin Date End Date
GTE TRACEP DC8 Aircraft Results 2/26/2001 4/09/2001
GTE TRACEP P3B Aircraft Results 2/24/2001 4/10/2001
Backward air mass trajectories intersecting the DC-8 flight path 2/26/2001 4/09/2001
Cloud index 2/26/2001 4/03/2001
Data merges for the DC-8 data files 2/26/2001 4/09/2001
Backward air mass trajectories intersecting the P3-B flight path 2/24/2001 4/10/2001
Data merges for the P3-B data files 2/24/2001 4/10/2001
Satellite Data Products 2/24/2001 4/10/2001
Chinese Ground Sites 2/01/2001 4/30/2001
GTE FTIR Ground Observations 1/15/2001 6/15/2001
OZONESONDES 1/05/2000 12/27/2001

c. Parameter or Variable

Not all of the parameters are in each data set granule. Also, the ranges vary between data sets and between granules within each data set. Species measured are given in Kleb and Scott, [2003a], [2003b].

Parameter Description
See Kleb and Scott, [2003a], [2003b], Jacob et al., [2003].
Unit of Measurement
The units of measure vary widely depending on species and measurement environment and are addressed in the individual data file header records.
Parameter Source
See Kleb and Scott, [2003a], [2003b], Jacob et al., [2003].
Parameter Range
See Kleb and Scott, [2003a], [2003b], Jacob et al., [2003].
Sample Data Record
The GTE Data Format Document contains examples of each data set type.

d. Error Sources

The sources of error vary depending on species and measurement environment and are addressed in Kleb and Scott, [2003a], [2003b], the papers included in the TRACE-P special section of the Journal of Geophysical Research, Vol. 108, No. 20 and 21, October 27 and November 16, 2003, and/or papers referenced in that publication and readme files and/or header records associated with each data file.

5. USAGE GUIDANCE

  1. Known Problems with the Data

    None reported for the current archive version. See the readme files and header records included with each data set for information provided by the responsible investigator.

  2. Future Modifications and Plans

    The data sets submitted to the ASDC are considered final and no further updates are anticipated. However, modifications will be considered if requested by the investigators or otherwise justified.

6. ACQUISITION MATERIALS AND METHODS

Details of data acquisition and materials are addressed in the Fall 2002 AGU TRACE-P Special Session (s) and the papers contained in the Journal of Geophysical Research TRACE-P Special Section (Vol. 108, No. 20 and 21, October 27 and November 16, 2003).

7. REFERENCES

  1. Fall 2002 AGU TRACE-P Special Session(s)

  2. TRACE-P Special Section, Journal of Geophysical Research, Vol. 108, No. 20 and 21, October 27 and November 16, 2003.

  3. GTE Bibliography

  4. Bengtsson, L., Medium-range forecasting--The experience of ECMWF, Bull. Am. Meteorol. Soc., 66, 1133-1146, 1985.

  5. Hollingsworth, A., D.B. Shaw, P. Lonnberg, L. Illari, K. Arpe, and A.J. Simmons, Monitoring of observations and analysis quality by a data assimilation system, Mon. Weather Rev., 114, 861-879, 1986.

  6. European Centre for Medium-Range Weather Forecasts (ECMWF), User guide to ECMWF products 2.1, Meteorol. Bull. M3.2, Reading, England, U.K., 1995.

  7. Fuelberg, H.E., R.O. Loring, Jr., M.V. Watson, M.C. Sinha, K.E. Pickering, A.M. Thompson, G.W. Sachse, D.R. Blake, and M.R. Schoeberl, TRACE-A Trajectory intercomparison 2. Isentropic and kinematic methods, J. Geophys. Res., 101, 23927-23939, 1996.

  8. Fuelberg, H.E., R.E. Newell, S.P. Longmore, W. Zhu, D.J. Westberg, E.V. Browell, D.R. Blake, G.L. Gregory, and G.W. Sachse, A meteorological overview of the PEM-Tropics period, J. Geophys. Res., 104, 5585-5622, 1999.

  9. Fuelberg, H.E., J.R. Hannan, P.F.J. van Velthoven, E. V. Browell, G. Bieberbach, Jr., R.D. Knabb, G.L. Gregory, K.E. Pickering, and H.B. Selkirk, A meteorological overview of the SONEX period. J. Geophys. Res., 105, 3633-3651, 2000.

  10. Jacob, D. J., J. Crawford, M. M. Kleb, V. S. Connors, R. J. Bendura, J. L. Raper, G. W. Sachse, J. Gille, L. Emmons, and J. C. Heald, Transport and chemical evolution over the Pacific (TRACE-P) mission: Design, execution, and first results, J. Geophys. Res., 108(D20), 8781, doi:10.1029/2002JD003276, in press, 2003.

  11. Kleb, M. and A. Scott, Compendium of NASA Data Base for the Global Tropospheric Experiment's Transport and Chemical Evolution Over the Pacific (TRACE-P) Volume I: DC-8, NASA/TM-2003-212429/VOL1, July 2003.

  12. Kleb, M. and A. Scott, Compendium of NASA Data Base for the Global Tropospheric Experiment's Transport and Chemical Evolution Over the Pacific (TRACE-P) Volume 2: DC-8, NASA/TM-2003-212429/VOL2, July 2003.

  13. Maloney, J.C., H.E. Fuelberg, M.A. Avery, J.H. Crawford, D.R. Blake, B.G. Heikes, G.W. Sachse, S.T. Sandholm, H. Singh, and R.W. Talbot, Chemical characteristics of air from different source regions during the second Pacific Exploratory Mission in the Tropics (PEM-Tropics B), J. Geophys. Res., 106, 32609-32625, 2001.

  14. Stohl, A., G. Wotawa, P. Seibert, and H. Kromp-Kolb, Interpolation errors in wind fields as a function of spatial and temporal resolution and their impact on different types of kinematic trajectories. J. Appl. Meteor., 34, 2149-2165, 1995.

  15. Stohl, A., Computation, accuracy, and applications of trajectories - A review and bibliography, Atmos. Environ., 32, 947-966, 1998.

8. ACRONYMS

EOSDIS Acronyms | EOSDIS Glossary.

AGU - American Geophysical Union
ACE - Aerosol Characterization Experiment
ASDC - Atmospheric Science Data Center
CMDL - Climate Monitoring and Diagnostics Laboratory
DFRC - Dryden Flight Research Center
ECMWF - European Center for Medium-Range Weather Forecasts
EOSDIS - Earth Observing System Distributed Information System
GMS - Geostationary Meteorological Satellites
GOES - Geostationary Operational Environmental Satellites
GTE - Global Tropospheric Experiment
IMS - Information Management System
LaRC - Langley Research Center
McIDAS - Man computer Interactive Data Access System
MOPITT - Measurements Of Pollution In The Troposphere
NASA - National Aeronautics and Space Administration
NAST - NPOESS Atmospheric Sounder Testbed
NCAR - National Center for Atmospheric Research
NOAA - National Oceanic and Atmospheric Administration
NPOESS - National Polar-Orbiting Environmental Satellite System
ProjDP - Project Dew Point
SHADOZ - Southern Hemisphere ADditional OZonesondes
TSCALC - Static temperature, calculated by DADS
TSDEGC - Static temperature, measured directly, in Celsius
TRACE-P - Transport and Chemical Evolution over the Pacific
WFF - Wallops Flight Facility

9. Document Information:


GTE Data Table | ASDC Home Page | Questions/Feedback