The First Airborne Arctic Stratospheric Expedition (AASE-I) and the Meteorological Measurement System (MMS) Data CD-ROM'sEntry ID: AASE89
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
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.
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'sOnline Resource: http://cloud1.arc.nasa.gov/aase/
Start Date: 1989-01-01Stop Date: 1989-02-28
ATMOSPHERE > AEROSOLS > AEROSOL EXTINCTION
ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES
ATMOSPHERE > AEROSOLS > CLOUD CONDENSATION NUCLEI
ATMOSPHERE > AEROSOLS > PARTICULATE MATTER
ATMOSPHERE > AIR QUALITY > CARBON MONOXIDE
ATMOSPHERE > ALTITUDE > GEOPOTENTIAL HEIGHT
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES > BROMINE MONOXIDE
ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > POTENTIAL TEMPERATURE
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > WATER VAPOR
ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > VORTICITY
ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD CONDENSATION NUCLEI
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > CARBON DIOXIDE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > CARBON MONOXIDE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > METHANE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > CHLORINE MONOXIDE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > NITRIC ACID
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > NITROGEN DIOXIDE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > NITROGEN OXIDES > REACTIVE NITROGEN OXIDES
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > NITROUS OXIDE
ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS > OZONE
Distribution Media: CD-ROM
AASE Project Office (1988/1989), Airborne Arctic Stratospheric Expedition, NASA Ames Research Center, Moffett Field, CA 94035, An overview of the 1989 AASE.
Anderson, J.G., and O.B. Toon, (1993), Airborne Arctic Stratospheric Expedition II: An Overview, Geophys. Res. Lett., 20, 2499-2502
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Creation and Review Dates
Last DIF Revision Date: 2017-08-24