Identification

Title

Sensitivity of outgoing longwave radiative flux to the global vertical distribution of ozone characterized by instantaneous radiative kernels from Aura-TES

Abstract

We calculate the sensitivity of outgoing longwave radiation (OLR) to the global vertical distribution of tropospheric ozone using ozone profile estimates from Aura Tropospheric Emission Spectrometer (Aura-TES) along with the partial derivatives of spectral radiance with respect to ozone from the Aura-TES operational retrieval algorithm. Accounting for anisotropy, we calculate top of atmosphere instantaneous radiative kernels (IRKs), in W/m²/ppb, for infrared ozone absorption from 985 to 1080 cm⁻¹. Zonal mean distributions for August 2006 show significant variations in the IRK between clear and cloudy sky, ocean and land, and day and night over land. For all sky (clear and cloudy conditions), OLR is significantly less sensitive to ozone in the middle and lower troposphere due to clouds, especially in the tropics. We also compute the longwave radiative effect (LWRE), i.e., the reduction in OLR due to absorption by tropospheric ozone, and find a global average LWRE of 0.33 ± 0.02₋ ₀.₀₀₇⁺⁰.⁰¹⁸ W/m² (with uncertainty and bias) for tropospheric ozone with significant variability (σ = 0.23W/m²) under all sky conditions for August 2006. For clear sky, tropical conditions we examine the effect of water vapor in reducing the LWRE from tropospheric ozone.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d79887hb

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2011-07-28T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact