Components of near-surface energy balance derived from satellite soundings – Part 2: Latent heat flux
Item
Title (Dublin Core)
Components of near-surface energy balance derived from satellite soundings – Part 2: Latent heat flux
Description (Dublin Core)
This paper introduces a new method for recovering global fields of latent heat flux. The method focuses on specifying Bowen ratio fields through exploiting air temperature and vapour pressure measurements obtained from infra-red soundings of the AIRS (Atmospheric Infrared Sounder) sensor onboard the NASA-Aqua platform. Through combining these Bowen ratio retrievals with satellite surface net available energy data we have specified estimates of global surface latent heat flux at the 1° by 1° scale. These estimates were evaluated against data from 30 terrestrial tower flux sites covering a broad spectrum of biomes. Taking monthly average 13:30 local time (LT) data for 2003, this revealed a relatively good agreement between the satellite and tower measurements of latent heat flux, with a pooled root mean square deviation of 79 W m<sup>−2</sup>, and no significant bias. The results show particular promise for this approach under warm, moist conditions, but weaknesses under arid or semi-arid conditions subject to high radiative loads.
Creator (Dublin Core)
Mallick, K.
Jarvis, A.
Wohlfahrt, G.
Gough, C.
Hirano, T.
Kiely, G.
Miyata, A.
Yamamoto, S.
Date (Dublin Core)
2018-08-10
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acpd-10-14417-2010
https://acp.copernicus.org/preprints/acp-2010-225/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
