ASDC | POLARIS_Analysis_ER2_Data

POLARIS Level 4

Entry Title: POLARIS Analysis Model Data

Entry ID: POLARIS_Analysis_ER2_Data_1

Clouds

Description

POLARIS_Analysis_ER2_Data is the modeled trajectories and meteorological data along the flight path for the ER-2 aircraft collected during the Photochemistry of Ozone Loss in the Arctic Region in Summer (POLARIS) campaign. Data collection for this product is complete.

The POLARIS mission was a joint effort of NASA and NOAA that occurred in 1997 and was designed to expand on the photochemical and transport processes that cause the summer polar decreases in the stratospheric ozone. The POLARIS campaign had the overarching goal of better understanding the change of stratospheric ozone levels from very high concentrations in the spring to very low concentrations in the autumn. The NASA ER-2 high-altitude aircraft was the primary platform deployed along with balloons, satellites, and ground-sites. The POLARIS campaign was based in Fairbanks, Alaska with some flights being conducted from California and Hawaii. Flights were conducted between the summer solstice and fall equinox at mid- to high latitudes. The data collected included meteorological variables; long-lived tracers in reference to summertime transport questions; select species with reactive nitrogen (NOy), halogen (Cly), and hydrogen (HOx) reservoirs; and aerosols. More specifically, the ER-2 utilized various techniques/instruments including Laser Absorption, Gas Chromatography, Non-dispersive IR, UV Photometry, Catalysis, and IR Absorption. These techniques/instruments were used to collect data including N2O, CH4, CH3CCl3, CO2, O3, H2O, and NOy. Ground stations were responsible for collecting SO2 and O3, while balloons recorded pressure, temperature, wind speed, and wind directions. Satellites partnered with these platforms collected meteorological data and Lidar imagery. The observations were used to constrain stratospheric computer models to evaluate ozone changes due to chemistry and transport.

DOI

10.5067/ASDC/SUBORBITAL/POLARIS_Analysis_ER2_Data_1

Citation Styles for this Dataset

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ESPO Home Page for POLARIS

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How to Cite ASDC Data

PUBLICATIONS

Preface [to special section on Photochemistry of Ozone Loss in the Arctic Region in Summer (POLARIS)]

From GCMD Science Keywords:

DINITROGEN PENTOXIDE > NITROGEN COMPOUNDS
CHLORINE NITRATE > HALOCARBONS AND HALOGENS
METHANE > CARBON AND HYDROCARBON COMPOUNDS
STATIC PRESSURE
BRIGHTNESS TEMPERATURE
NITROGEN
HYDROGEN PEROXIDE > OXYGEN COMPOUNDS
TOTAL OZONE > ATMOSPHERIC OZONE > OXYGEN COMPOUNDS
STATIC TEMPERATURE > SURFACE TEMPERATURE
GEOPOTENTIAL HEIGHT
POTENTIAL VORTICITY > VORTICITY > WIND DYNAMICS
OZONE PROFILES > ATMOSPHERIC OZONE > OXYGEN COMPOUNDS
HYDROGEN CHLORIDE > HALOCARBONS AND HALOGENS
CLOUD HEIGHT > CLOUD PROPERTIES
CLOUD FRACTION > CLOUD PROPERTIES
CHLORINE DIOXIDE > HALOCARBONS AND HALOGENS
CHLORINE MONOXIDE > HALOCARBONS AND HALOGENS
NITROGEN DIOXIDE
HYDROXYL > HYDROGEN COMPOUNDS
ATMOSPHERIC CARBON MONOXIDE > CARBON AND HYDROCARBON COMPOUNDS
ATMOSPHERIC NITRIC ACID > NITROGEN COMPOUNDS
SULFUR COMPOUNDS
ATMOSPHERIC OZONE > OXYGEN COMPOUNDS
BROMINE MONOXIDE > HALOCARBONS AND HALOGENS
FORMALDEHYDE > CARBON AND HYDROCARBON COMPOUNDS

Data Distribution

File Format(s):

.er2

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Spatial Information

Spatial Coverage: (S: -29.202, N: 90), (W: -180, E: 180)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

ARCTIC NORTHERN HEMISPHERE ALASKA

Temporal Information

Temporal Coverage: 1997-01-06 - 1997-09-26

Platforms

Jet

NASA ER-2

NASA Earth Resources-2

Models

Data Analysis

Metadata Dates

Created on 2023-06-16

Last updated on 2023-10-10