TES Level 2
Entry Title: TES/MLS Aura L2 CO Special Observation V001

Entry ID: TML2COS_1
Tropospheric Composition
Description

TES TML2COS Special Observation Products are derived from TES (Tropospheric Emission Spectrometer) nadir and MLS (Microwave Limb Sounder) limb measurements from the Aura satellite to jointly estimate an atmospheric carbon monoxide (CO) profile with extended vertical range compared to profiles retrieved from the individual measurement. TES and MLS stand-alone CO profile retrievals are largely complementary, with TES being largely sensitive to lower to middle troposphere while MLS measures CO in the upper troposphere and above. TES nadir and MLS limb tangent locations are paired within 6-8 min and within 220 km. The paired radiance measurements of the two instruments in each location are optimally combined to retrieve a single CO profile along with other trace gases whose signal interferes with that from CO. This combined CO profile has a vertical resolution and vertical range that is an improvement over the two stand-alone products, especially in the upper troposphere/lower stratosphere. For example, the degrees of freedom for signal (DOFS) between surface and 50 hPa for TES alone are < 2, and for the combined CO profiles are 4. This Aura CO product using TES and MLS processing results will provide a unique data set for studying tropospheric transport of air pollutants and troposphere-stratospheric exchange processes.

DOI

10.5067/AURA/TES-MLS/TML2COS_L2.001

Keywords

From GCMD Science Keywords:
  • CARBON AND HYDROCARBON COMPOUNDS
  • CARBON MONOXIDE
  • ATMOSPHERIC CHEMISTRY
  • ATMOSPHERIC CARBON MONOXIDE > CARBON AND HYDROCARBON COMPOUNDS
  • AIR QUALITY
  • Carbon Monoxide (CO) Volume Mixing Ratio
  • Lower-Mid Troposphere
  • Precision
  • Upper Troposphere
  • Vertical Resolution
Data Distribution

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Spatial Information

spatial-coverage-map
Spatial Coverage: (S: -90, N: 90), (W: -180, E: 180)
Spatial Coverage Type: Horizontal
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian
Locations

GLOBAL
Temporal Information

Temporal Coverage: 2004-09-21 - 2012-12-10
Platforms

Earth Observation Satellites
Aura
Earth Observing System, Aura
MLS
Microwave Limb Sounder
TES
Tropospheric Emission Spectrometer
MLS
Metadata Dates

Created on 2019-07-09
Last updated on 2020-11-18