scholarly journals Role of land surface processes in monsoon development: East Asia and West Africa

2004 ◽  
Vol 109 (D3) ◽  
pp. n/a-n/a ◽  
Author(s):  
Yongkang Xue ◽  
H.-M. H. Juang ◽  
W.-P. Li ◽  
S. Prince ◽  
R. DeFries ◽  
...  
Keyword(s):  
West Africa ◽  
East Asia ◽  
Land Surface ◽  
Surface Processes ◽  
Land Surface Processes

Quantification of the relative role of land-surface processes and large-scale forcing in dynamic downscaling over the Tibetan Plateau

2016 ◽  
Vol 48 (5-6) ◽  
pp. 1705-1721 ◽  
Author(s):  
Yanhong Gao ◽  
Linhong Xiao ◽  
Deliang Chen ◽  
Fei Chen ◽  
Jianwei Xu ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Land Surface ◽  
Large Scale ◽  
Surface Processes ◽  
The Tibetan Plateau ◽  
Relative Role ◽  
Dynamic Downscaling ◽  
Land Surface Processes

scholarly journals Modeling the Summertime Climate of Southwest Asia: The Role of Land Surface Processes in Shaping the Climate of Semiarid Regions

2012 ◽  
Vol 25 (2) ◽  
pp. 704-719 ◽  
Author(s):  
Marc P. Marcella ◽  
Elfatih A. B. Eltahir
Keyword(s):  
Vapor Pressure ◽  
Land Surface ◽  
Surface Albedo ◽  
Incident Radiation ◽  
Radiation Budget ◽  
Surface Processes ◽  
Southwest Asia ◽  
Land Surface Processes ◽  
Semiarid Regions

Abstract Presented is a study on the role of land surface processes in determining the summertime climate over the semiarid region of southwest Asia. In this region, a warm surface air temperature bias of 3.5°C is simulated in the summer by using the standard configuration of Regional Climate Model version 3 (RegCM3). Biases are also simulated in surface albedo (underestimation), shortwave incident radiation (overestimation), and vapor pressure (underestimation). Based on satellite measurements documented in NASA’s surface radiation budget (SRB) dataset, a correction in surface albedo by 4% is introduced in RegCM3 to match the observed SRB data. Increasing albedo values results in a nearly 1°C cooling over the region. In addition, by incorporating RegCM3’s dust module and including subgrid variability for surface wind, shortwave incident radiation bias originally of about 45 W m−2 is reduced by 30 W m−2. As a result, the reduction of shortwave incident radiation cools the surface by 0.6°C. Finally, including a representation for the irrigation and marshlands of Mesopotamia produces surface relative humidity values closer to observations, thus eliminating a nearly 5-mb vapor pressure dry bias over some of the region. Consequently, the representation of irrigation and marshlands results in cooling of nearly 1°C in areas downwind of the actual land-cover change. Along with identified biases in observational datasets, these combined processes explain the 3.5°C warm bias in RegCM3 simulations. Therefore, it is found that accurate representations of surface albedo, dust emissions, and irrigation are important in correctly modeling summertime climates of semiarid regions.

The role of land surface processes on the mesoscale simulation of the July 26, 2005 heavy rain event over Mumbai, India

2009 ◽  
Vol 67 (1-2) ◽  
pp. 87-103 ◽  
Author(s):  
Hsin-I Chang ◽  
Anil Kumar ◽  
Dev Niyogi ◽  
U.C. Mohanty ◽  
Fei Chen ◽  
...  
Keyword(s):  
Land Surface ◽  
Heavy Rain ◽  
Surface Processes ◽  
Rain Event ◽  
Mesoscale Simulation ◽  
Land Surface Processes ◽  
Heavy Rain Event

Land surface processes and Sahel climate

2000 ◽  
Vol 38 (1) ◽  
pp. 117-140 ◽  
Author(s):  
Sharon Nicholson
Keyword(s):  
Land Surface ◽  
Surface Processes ◽  
Land Surface Processes

Land Surface Processes Relevant to Sub-seasonal to Seasonal (S2S) Prediction

2019 ◽  
pp. 165-181 ◽  
Author(s):  
Paul A. Dirmeyer ◽  
Pierre Gentine ◽  
Michael B. Ek ◽  
Gianpaolo Balsamo
Keyword(s):  
Land Surface ◽  
Surface Processes ◽  
Land Surface Processes
Sign in / Sign up

Export Citation Format

Share Document