TES/Aura L2 Ozone Nadir V007

Description

TL2O3N_7 is the Tropospheric Emission Spectrometer (TES)/Aura Level 2 Ozone Nadir Version 7 data product. It consists of information for one molecular species for an entire Global Survey or Special Observation. TES was an instrument aboard NASA's Aura satellite and was launched from California on July 15, 2004. Data collection for TES is complete. TES Level 2 data contain retrieved species (or temperature) profiles at the observation targets and the estimated errors. The geolocation, quality, and other data (e.g., surface characteristics for nadir observations) were also provided. L2 modeled spectra were evaluated using radiative transfer modeling algorithms. The process, referred to as retrieval, compared observed spectra to the modeled spectra and iteratively updated the atmospheric parameters. L2 standard product files included information for one molecular species (or temperature) for an entire global survey or special observation run. A global survey consisted of a maximum of 16 consecutive orbits. Each TES Level 2 standard product reported information in a swath format conforming to the HDF-EOS Aura File Format Guidelines. Nadir observations, which point directly to the surface of the Earth, are different from limb observations, which are pointed at various off-nadir angles into the atmosphere. Nadir and limb observations were added to separate L2 files, and a single ancillary file was composed of data that are common to both nadir and limb files. A Nadir sequence within the TES Global Survey was a fixed number of observations within an orbit for a Global Survey. Prior to April 24, 2005, it consisted of two low resolution scans over the same ground locations. After April 24, 2005, Global Survey data consisted of three low resolution scans. The Nadir standard product consists of four files, where each file is composed of the Global Survey Nadir observations from one of four focal planes for a single orbit, i.e. 72 orbit sequences. The Global Survey Nadir observations only used a single set of filter mix. A Global Survey consisted of observations along 16 consecutive orbits at the start of a two day cycle, over which 4,608 retrievals were performed. Each observation was the input for retrievals of species Volume Mixing Ratios (VMRs), temperature profiles, surface temperature, and other data parameters with associated pressure levels, precision, total error, vertical resolution, total column density, and other diagnostic quantities. Each TES Level 2 standard product reported information in a swath format conforming to the HDF-EOS Aura File Format Guidelines. Each Swath object was bounded by the number of observations in a global survey and a predefined set of pressure levels, representing slices through the atmosphere. Each standard product could have had a variable number of observations depending upon the Global Survey configuration and whether averaging was employed. Also, missing or bad retrievals were not reported. Further, observations were occasionally scheduled on non-global survey days. In general they were measurements made for validation purposes or with highly focused science objectives. Those non-global survey measurements were referred to as “special observations.” A Limb sequence within the TES Global Survey was three high-resolution scans over the same limb locations. The Limb standard product consists of four files, where each file is composed of the Global Survey Limb observations from one of four focal planes for a single orbit, i.e. 72 orbit sequences. The Global Survey Limb observations used a repeating sequence of filter wheel positions. Special Observations could only be scheduled during the 9 or 10 orbit gaps in the Global Surveys, and were conducted in any of three basic modes: stare, transect, step-and-stare. The mode used depended on the science requirement. Each limb observation Limb 1, Limb 2 and Limb 3, were processed independently. Thus, each limb standard product consisted of three sets w

Resources

Name Format Description Link
45 TES Level 2 Read Software Package - Direct File Download (.tar) https://asdc.larc.nasa.gov/documents/tes/read_software/TES_L2_ReadSoftware.tar
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FAURA%2FTES%2FTL2O3N_L2.007
21 TES project home page https://tes.jpl.nasa.gov/
21 NASA EOS ATB Documents: TES https://eospso.gsfc.nasa.gov/atbd-category/53
21 How to cite ASDC data https://asdc.larc.nasa.gov/citing-data
21 DOI data set landing page for TL2O3N_7 https://doi.org/10.5067/AURA/TES/TL2O3N_L2.007
21 AURA Instrument Home Page https://aura.gsfc.nasa.gov/
33 Earth Observing System Data and Information System (EOSDIS) Article: On the trail of global pollution drift https://cdn.earthdata.nasa.gov/conduit/upload/1251/NASA_SOP_2006_On_the_trail_of_global_pollution_drift.pdf
21 NASA Earthdata Forum - TES Project Specific Forum https://forum.earthdata.nasa.gov/app.php/tag/TES
21 TES Data Processing Calendar https://tes.jpl.nasa.gov/data/processing-calendar/
33 TES Langley ASDC Project Guide https://asdc.larc.nasa.gov/documents/tes/guide/tes_project.pdf
21 ASDC Direct Data Download for TL2O3N.007 https://asdc.larc.nasa.gov/data/TES/TL2O3N.007/
21 OPeNDAP data access for TL2O3N.007 https://opendap.larc.nasa.gov/opendap/TES/TL2O3N.007/contents.html
33 TES Level 2 (L2) Data User's Guide (Up to & including Version 8 data) https://asdc.larc.nasa.gov/documents/tes/guide/TESDataUsersGuideV8_0_March_27_2020_FV-8_rh.pdf
21 HDF Support Portal https://portal.hdfgroup.org/display/support
21 TES Search and Subsetting Web Application https://subset.larc.nasa.gov/tes/login.php
21 TES Publications https://tes.jpl.nasa.gov/science/publications/
21 Basic IDL Tools for extraction information from TES L2 HDF Product files https://asdc.larc.nasa.gov/documents/tes/readme/README_L2_ReadSoftware.txt
21 Report of TES Level 2 Special Observation Products Available from the ASDC https://l0dup05.larc.nasa.gov/public/cgi-bin/DUE/tes_L2SpecObs.cgi
21 Report of TES Level 2 Global Survey Products Available from the ASDC https://l0dup05.larc.nasa.gov/public/cgi-bin/DUE/tes_L2GlbSrvy.cgi
33 Earth Observing System (EOS) Tropospheric Emission Spectrometer (TES) Level 2 (L2) Data User’s Guide (Up to & including Version 7 data) - Version 7.0 https://asdc.larc.nasa.gov/documents/tes/guide/TESDataUsersGuideV7_0_Sep_27_2018_FV-2.pdf
33 Aura-TES L2 Products: Version 2 Data Quality Description https://asdc.larc.nasa.gov/documents/tes/quality_summaries/L2_products_v002.pdf
21 Report of TES Level 2 Limb Products Available from the ASDC https://l0dup05.larc.nasa.gov/public/cgi-bin/DUE/tes_L2Limb.cgi
36 2013 TES Data User Session Presentation - Direct File Download (.ppt) https://asdc.larc.nasa.gov/documents/tes/guide/TES_STM_2013_Data_User_Session-2.ppt
33 Aura-TES L2 Products: Version 7 Data Quality Description https://asdc.larc.nasa.gov/documents/tes/quality_summaries/L2_products_V007.pdf
21 EOS Aura Science Team Meeting AGENDA, August 27 - August 29, 2019 Pasadena, CA, USA https://gs614-avdc1-pz.gsfc.nasa.gov/Overview/
21 Earthdata Search for TL2O3N_7 (NASA Application to search, discover, visualize, refine, and access NASA Earth Observation data) https://search.earthdata.nasa.gov/search/granules?p=C1331182557-LARC
33 TES Level 2 Versioning - Level 2 Standard and Special Observation Products https://asdc.larc.nasa.gov/documents/tes/readme/level_2_std.pdf
33 Overview of TES Data at the ASDC - 2015 https://asdc.larc.nasa.gov/documents/tes/guide/ASDC_TES_Overview_2015.pdf
33 Earth Observing System (EOS) Tropospheric Emission Spectrometer (TES) Data Validation Report (Version F08_11 data) - Version 7.0 https://asdc.larc.nasa.gov/documents/tes/readme/TES_Validation_Report_v7_Final.pdf

Tags

  • atmosphere
  • atmospheric-temperature
  • atmospheric-chemistry
  • air-quality
  • clouds
  • earth-science

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