ASDC | TL1BN

TES Level 1B

Entry Title: TES/Aura L1B Spectra Nadir V006

Entry ID: TL1BN_6

Tropospheric Composition

Description

TL1BN_6 is the Tropospheric Emission Spectrometer (TES)/Aura L1B Spectra Nadir Version 6 data product. 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 1B Spectra data contains radiometric calibrated spectral radiances and their corresponding noise equivalent spectral radiances (NESR). The geolocation, quality and some engineering data were also provided. Each L1B data file contains spectra data composed of the Global Survey Nadir observations formed a single TES orbit starting from the South Pole Apex.

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 consisted of four files, where each file was 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 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. 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 (1,152 nadir retrievals and 1,152 retrievals in time ordered sequence for each limb observation). 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 is employed. Also, missing or bad retrievals were not reported.

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.

DOI

10.5067/AURA/TES/TL1BN_L1.006

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VIEW RELATED INFORMATION

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

NASA EOS ATB Documents: TES

DATA CITATION POLICY

How to cite ASDC data

PROCESSING HISTORY

TES Level 1B Versioning - Level 1B Standard and Special Observation Products

PRODUCT QUALITY ASSESSMENT

Aura-TES L1B Products: Version 2 Quality Description

PRODUCTION HISTORY

Report of TES Level 1B Products Available from the ASDC

PUBLICATIONS

TES Publications

READ-ME

Basic IDL Tools for extraction information from TES L1B HDF product files Readme

From GCMD Science Keywords:

INFRARED WAVELENGTHS
BRIGHTNESS TEMPERATURE
INFRARED RADIANCE

Noise Equivalent Spectral Radiance (NESR)
Spectra

Data Distribution

File Format(s):

HDF-EOS5

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Spatial Information

Spatial Coverage: (-90, 90), (-180, 180)
Spatial Coverage Type: Horizontal
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

GLOBAL

Temporal Information

Temporal Coverage: 2004-08-22 - 2018-01-22

Platforms

Earth Observation Satellites

Aura

Earth Observing System, Aura

TES

Tropospheric Emission Spectrometer

FTIR SPECTROMETER

Metadata Dates

Created on 2019-07-09

Last updated on 2020-11-17