UARS Halogen Occultation Experiment (HALOE) Level 2 V019 (UARHA2FN) at GES DISC

The Halogen Occultation Experiment (HALOE) Level 2 data product consists of daily vertical profiles of temperature, aerosol extinciton and pressure, as well as concentrations of HCl, HF, CH4, NO by gas filter correlation radiometry and H2O, NO2, O3 and CO2 by broadband filter radiometry. The instrument measured atmospheric infrared absorption at wavelengths from 2.43 to 10.25 microns. HALOE was flown on NASA's Upper Atmosphere Research Satellite (UARS) to investigate upper atmosphere chemistry, dynamics and radiative processes, particlarly stratospheric ozone destruction and chlorofluromethane impact on ozone. HALOE is a solar occultation experiment which typically views 15 sunrise and sunset events each day. Limb measurements were made in the altitude range between 3 km and 130 km (depending on channel) with less than 1 km resolution. For a given day, the profiles were in two distinct latitude bands, for the sunset and sunrise events. Coverage across the full range of latitudes between 80S and 80N was achieved on a time period ranging from about two to six weeks, depending on the time of year. The HALOE Level 2 data were processed with the version 19 algorithm.

The HALOE level 2 product consists of a single granule or file per day. A data granule contains all measured HALOE species and subtypes, and ancillary information. Aerosol extinction coefficients are measured in units of 1/km, chemical species are given in mixing ratios, and temperature is in units of degrees Kelvin. HALOE level 2 data are on 491 instrument resolution altitude levels. The data files are available in a binary record oriented format.

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier C1273348497-GES_DISC
issued 2007-02-20
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1273348497-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2025-03-31
old-spatial -180.0 -80.0 180.0 80.0
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
resource-type Dataset
source_datajson_identifier true
source_hash ecdead7fe204b7929a8e04298730b18ae7a62756329fc2b01b46b9ce83199263
source_schema_version 1.1
temporal 1991-10-11T00:00:00Z/2005-11-21T23:59:59.999Z
theme {UARS,geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • aerosols
  • atmosphere
  • atmospheric-chemistry
  • atmospheric-temperature
  • atmospheric-water-vapor
  • earth-science
isopen False
license_id notspecified
license_title License not specified
maintainer JAMES JOHNSON
maintainer_email James.Johnson@nasa.gov
metadata_created 2025-09-23T14:36:28.707521
metadata_modified 2025-09-23T14:36:28.707528
notes The Halogen Occultation Experiment (HALOE) Level 2 data product consists of daily vertical profiles of temperature, aerosol extinciton and pressure, as well as concentrations of HCl, HF, CH4, NO by gas filter correlation radiometry and H2O, NO2, O3 and CO2 by broadband filter radiometry. The instrument measured atmospheric infrared absorption at wavelengths from 2.43 to 10.25 microns. HALOE was flown on NASA's Upper Atmosphere Research Satellite (UARS) to investigate upper atmosphere chemistry, dynamics and radiative processes, particlarly stratospheric ozone destruction and chlorofluromethane impact on ozone. HALOE is a solar occultation experiment which typically views 15 sunrise and sunset events each day. Limb measurements were made in the altitude range between 3 km and 130 km (depending on channel) with less than 1 km resolution. For a given day, the profiles were in two distinct latitude bands, for the sunset and sunrise events. Coverage across the full range of latitudes between 80S and 80N was achieved on a time period ranging from about two to six weeks, depending on the time of year. The HALOE Level 2 data were processed with the version 19 algorithm. The HALOE level 2 product consists of a single granule or file per day. A data granule contains all measured HALOE species and subtypes, and ancillary information. Aerosol extinction coefficients are measured in units of 1/km, chemical species are given in mixing ratios, and temperature is in units of degrees Kelvin. HALOE level 2 data are on 491 instrument resolution altitude levels. The data files are available in a binary record oriented format.
num_resources 9
num_tags 14
title UARS Halogen Occultation Experiment (HALOE) Level 2 V019 (UARHA2FN) at GES DISC