Observational evidence on the effects of clouds and aerosols on net ecosystem exchange and evapotranspiration

Details Observational evidence on the effects of clouds and aerosols on net ecosystem exchange and evapotranspiration Observational evidence on the effects of clouds and aerosols on net ecosystem exchange and evapotranspiration

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3510401w&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 10, CiteID L10401

Physics

2

Global Change: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 4805, 4912), Global Change: Land/Atmosphere Interactions (1218, 1843, 3322), Biogeosciences: Climate Dynamics (1620), Hydrology: Eco-Hydrology, Hydrology: Energy Budgets

Scientific paper

Clouds and aerosols control variations in the ratio of diffuse to total incident solar radiation (R d /R s ) and so determine to a large extent variations in both Light-Use Efficiency (LUE) and in the Evaporative Fraction (EF). Five years (2002-2007) of continuous ground measurements collected at twenty-three sites in the U.S. were analyzed to quantify this effect. Our results show that LUE is 19.4% and 203% larger for patchy clouds, and thick clouds than those for clear skies while LUE is about -6% for aerosols or thin clouds than those for clear skies. EF is 15.4%, 17.9% and 23.2% larger for aerosols or thin clouds, patchy clouds, and thick clouds than those for the clear sky when Eddy Covariance (ECOR) data are used, respectively. The values are 9.0%, 11.3% and 23.3% when Energy Balance Bowen Ratio (EBBR) data are used. This is the first systematic observational study on effects of R d /R s on EF and further study is needed.

Affiliated with

Also associated with

No associations

Rating

Observational evidence on the effects of clouds and aerosols on net ecosystem exchange and evapotranspiration does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Observational evidence on the effects of clouds and aerosols on net ecosystem exchange and evapotranspiration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observational evidence on the effects of clouds and aerosols on net ecosystem exchange and evapotranspiration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1540702