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The First Airborne Arctic Stratospheric Expedition (AASE-I) and the Meteorological Measurement System (MMS) Data CD-ROM's

Entry ID: AASE89

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Summary

Abstract: The first CD-ROM contains the Second Edition of data pertaining to the First Airborne Arctic Stratospheric Expedition (AASE-I) which was based in Stavanger, Norway during January and February, 1989. The First Edition of this dataset, produced in March 1990, was corrupted by many data errors introduced during production of the CD-ROM. The form of the errors was a random conversion of characters to ... spaces but hopefully the random data errors are not present in this edition. The second CD-ROM contains all of the 5 Hz data from the ER-2 Meteorological Measurement System (MMS) taken during the 1989 AASE-I associated with flights during which mesoscale disturbances were observed. This disc was generated as an appendix to the primary AASE-I CD-ROM dataset.

The data consists of measurements collected onboard the NASA ER-2 and DC-8 aircraft, ozonesonde soundings from three stations (Angmagssalik and Scoresbysund, Greenland, and Lerwick, U.K.), aerosol and temperature profiles from the SAM II spacecraft, global grid point values of Nimbus-7 TOMS ozone, and selected radiosonde soundings from stations in the region of the experiment. This expedition was aimed at studying the production and loss mechanisms of ozone in the north polar stratospheric environment, and the effect on ozone distribution of the Arctic polar vortex and of the cold temperatures associated with the formation of Polar Stratospheric Clouds (PSC). The mission was organized and funded by NASA, NOAA, NSF, universities, Chemical Manufacturers Association, and meteorological agencies overseas, utilizing similar instrumentation that was deployed during the Airborne Antarctic Ozone Experiment (AAOE) of 1987.

Theory teams provided calculations of: potential vorticity along the ER-2 flight path; cross-sections of potential vorticity, temperature, and geopotential heights along the DC-8 flight path; cross-sections of Clx, Fx, HCl, HNO3, and NOy along the DC-8 flight path; global grid point values of temperature, geopotential heights, and horizontal winds on selected pressure surfaces; northern hemispheric grid point values of potential vorticity and pressure on selected potential temperature surfaces.

Because of its limited range, the ER-2 is not be able to survey the entire Arctic region. The ER-2 measured ozone, chlorine monoxide, nitric oxide, reactive nitrogen, nitrous oxide, total water, bromine monoxide, nitric acid, condensation nuclei, aerosol size distribution, whole air sampling, and particle chemistry and size. The DC-8 can cover a greater range, enabling it to survey the polar vortex and air processed through the cold temperature region of the polar vortex. The DC-8 collected information similar to that of the ER-2, along with the vertical distribution of ozone and aerosols, methane, and in situ measurements of ozone.

All files within this release are standard ASCII files with variable length records terminated by (ASCII decimal values 13 and 10). In general, the file naming convention uses a two character prefix to identify the measurement, followed by a six digit number giving the year, month, and day (GMT) of the flight (or balloon launch). To identify the measurement platform, a three character name as in ER2, DC8, or Bhh is used to denote the data is from the ER-2, DC-8, or balloon (hh denotes the GMT hour of launch).

AASE-I discovered that while NOx and to some degree NOy were perturbed within the arctic vortex, there was little evidence for desiccation. Under these (in contrast to the antarctic) marginally perturbed conditions, however, CLO was found to be dramatically enhanced such that a large fraction of the available (inorganic) chlorine resided in the form of CLO and its dimmer CLOOCL.

A follow-up phase, AASE-II, was conducted in 1991 and 1992.

Related URL

Link: GET DATA

Link: VIEW PROJECT HOME PAGE

Description: Airborne Arctic Stratospheric Expedition (AASE) Home Page

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 90.0

S: 60.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: NASA, NOAA, NSF, Universities, Chemical Manufacturers Association, and Meteorological agencies overseas

Dataset Title: The First Airborne Arctic Stratospheric Expedition (AASE-I) and the Meteorological Measurement System (MMS) Data CD-ROM's

Online Resource: http://cloud1.arc.nasa.gov/aase/

Service Keywords

DATA MANAGEMENT/DATA HANDLING >TRANSFORMATION/CONVERSION

Science Keywords

AGRICULTURE >AGRICULTURAL AQUATIC SCIENCES

AGRICULTURE >AGRICULTURAL CHEMICALS

ISO Topic Category

OCEANS

Platform

TERRA > Earth Observing System, TERRA (AM-1)

Instrument

MODIS > Moderate-Resolution Imaging Spectroradiometer

Spectroradiometers

Project

EOSDIS > Earth Observing System Data Information System

ESIP > Earth Science Information Partners Program

Ancillary Keywords

ANTARCTIC

ARCTIC

Data Set Progress

IN WORK

Data Center

NSIDC Distributed Active Archive Center

Data Center URL: http://nsidc.org/daac/index.html
Dataset ID: MOD29P1D1

Data Center Personnel
Name: NSIDC DAAC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

National Snow and Ice Data Center

Data Center URL: http://nsidc.org
Dataset ID: MOD29P1D1

Data Center Personnel
Name: NSIDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

Distribution

Distribution Media: ftp or 8-mm tape

Distribution Size: 6.40 MB

Distribution Format: HDF-EOS

Fees: unknown

Personnel

DOROTHY K. HALL

Role: INVESTIGATOR

Contact Address:

National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC)

Mail stop 614.1

City: Greenbelt

Province or State: MD

Postal Code: 20771

Publications/References

Earth Science Data and Information System (ESDIS). 1996. EOS ground
system (EGS) systems and operations concept. Greenbelt, MD: Goddard
Space Flight Center.

Hall, D.K., A.B. Tait, G.A. Riggs, and
V.V. Salomonson. 1998. Algorithm theoretical basis document (ATBD) for
the MODIS snow-, lake ice- and sea ice- mapping algorithms (Version
4.0). Electronic version is available online at
...

Extended Metadata Properties

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Creation and Review Dates

DIF Creation Date: 1999-11-18

Last DIF Revision Date: 2013-01-16

Future DIF Review Date: 2002-01-03

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