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NASA Water Vapor Project (NVAP)
Langley DAAC Project/Campaign Document

NVAP data image example.

Summary:

Under a National Aeronautics and Space Administration (NASA) peer-reviewed contract, STC-METSAT has produced a multi-year total and layered (1988-1999) global water vapor data set. The total column (integrated) water vapor data set is comprised of a combination of radiosonde observations, Television and Infrared Operational Satellite (TIROS) Operational Vertical Sounder (TOVS), and Special Sensor Microwave/Imager (SSM/I) data sets. The global layered water vapor data set is created by slicing the total water vapor data set using layered information that TOVS and radiosonde data provides. As a companion data set for analysis, STC-METSAT also prepared a global (over oceans only), integrated cloud liquid water data set (since the best global climate models now contain liquid water as an explicit variable). The complete data set (all three sets) has been named NVAP, an acronym for NASA Water Vapor Project. STC-METSAT developed methods to process the data at a daily time scale and 1 degree x 1 degree spatial resolution. This work has become an internationally accepted contribution to the World Climate Research Programme (WCRP).

NVAP-Next Generation (NVAP-NG) is the latest phase of the NVAP data set, extending it into years 2000 and 2001. With increased power in computers and satellite sensors, the NVAP-NG data products bring increased spatial and temporal resolution. for all specific information relating to the NVAP-NG data sets, please view the Science and Technology Technical Report 3333 (PDF).

Table of Contents:

  1. Project/Campaign Overview
  2. Data Availability
  3. Data Access
  4. Principal Investigator Information
  5. Submitting Investigator Information
  6. References
  7. Glossary and Acronyms
  8. Document Information

1. Project/Campaign Overview:

Name of Project/Campaign:

NASA Water Vapor Project (NVAP)

Project/Campaign Introduction:

See Summary.

Project/Campaign Mission Objectives:

To assist scientific studies in atmospheric science, primarily those dealing with the atmospheric hydrologic cycle.

Discipline(s):

Earth Science

Geographic Region(s):

Global

Detailed Project/Campaign Description:

...

2. Data Availability:

Data Type(s):

All data currently archived at the Langley DAAC are in Native format.

Input/Output Media:

Data are available via FTP from the Langley DAAC.

Proprietary Status:

There is no proprietary status for the data sets currently on-line at the Langley DAAC.

3. Data Access:

Data Center Location and Contact Information:

Langley DAAC User and Data Services Office
NASA Langley Research Center
Mail Stop 157D
Hampton, Virginia 23681-2199 USA
Telephone: (757) 864-8656
FAX: (757) 864-8807
E-mail: larc-asdc-uds@lists.nasa.gov

Associated Costs:

Currently, there is no charge for media.

4. Principal Investigator Information:

Investigator(s) Name and Address:

David L. Randel
Cooperative Institute for Research in the Atmosphere (CIRA)
Colorado State University
Fort Collins, CO 80523
Telephone: (970) 491-8474
FAX: (970) 491-8693
E-mail: randel@cira.colostate.edu

NVAP-NG: Thomas H. Vonder Haar, Prof.
Cooperative Institute for Research in the Atmosphere (CIRA)
Colorado State University
Fort Collins, CO 80523
Telephone: (970) 491-8566
FAX: (970) 491-8449
E-mail: vonderhaar@cira.colostate.edu

5. Submitting Investigator Information:

Investigator(s) Name and Address:

David L. Randel
Cooperative Institute for Research in the Atmosphere (CIRA)
Colorado State University
Fort Collins, CO 80523
Telephone: (970) 491-8474
FAX: (970) 491-8693
E-mail: randel@cira.colostate.edu

NVAP-NG: Thomas H. Vonder Haar, Prof.
Cooperative Institute for Research in the Atmosphere (CIRA)
Colorado State University
Fort Collins, CO 80523
Telephone: (970) 491-8566
FAX: (970) 491-8449
E-mail: vonderhaar@cira.colostate.edu

6. References:

Non-NG References:

NVAP-NG References:

7. Glossary and Acronyms:

EOSDIS Acronyms (PDF).

8. Document Information:


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