Preprints
https://doi.org/10.5194/acpd-10-14417-2010
https://doi.org/10.5194/acpd-10-14417-2010
09 Jun 2010
 | 09 Jun 2010
Status: this preprint was under review for the journal ACP but the revision was not accepted.

Components of near-surface energy balance derived from satellite soundings – Part 2: Latent heat flux

K. Mallick, A. Jarvis, G. Wohlfahrt, C. Gough, T. Hirano, G. Kiely, A. Miyata, and S. Yamamoto

Abstract. 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−2, 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.

K. Mallick et al.

 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

K. Mallick et al.

K. Mallick et al.

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