Seasonal dynamics of vegetation covers and land surface models
نویسندگان
چکیده
Effect of seasonal dynamics of vegetation cover on land surface models: a case study of NOAH LSM over a savanna farm land in eastern Burkina Faso, West Africa F. Bagayoko, S. Yonkeu, and N. C. van de Giesen Water Resources Management, Faculty of Civil Engineering and Geosciences, TU Delft, Stevinweg 1, 2600 GA Delft, P.O. Box 5048, The Netherlands Center for Development Research (ZEF), University of Bonn, Walter-Flex Str. 3, 53113 Bonn, Germany Groupe EIER-ETSHER, 03 BP 7023 Ouagadougou 03, Burkina Faso Received: 16 January 2006 – Accepted: 10 March 2006 – Published: 12 September 2006 Correspondence to: N. C. van de Giesen ([email protected])
منابع مشابه
Climate variability in a simple model of warm climate land-atmosphere interaction
[1] A simple model is developed to describe the significant land-atmosphere interaction processes in the warm climate. It includes bulk soil hydrology, dynamic vegetation, and simple land-atmosphere interaction processes. The model can simulate the basic features of land surface control on evapotranspiration (ET) and exhibits a multiequilibrium behavior similar to that of some more complex mode...
متن کاملDynamics of vegetation in Karun watershed within Khuzestan province in relation with Temperature factors and precipitation
The aim of this study is to retrieve land surface temperature (LST), air temperature (AT) and precipitation and to study their relationship with vegetation in rang lands of Karun watershed of Khuzestan province. For this purpose, land surface temperature (LST) and NDVI was drived from NOAA-AVHRR for maximum amount of greenness (April) for a period of 27 years. In order to extract LST, Price alg...
متن کاملA land data assimilation system for simultaneous simulation of soil moisture and vegetation dynamics
Despite the importance of the coupling between vegetation dynamics and root-zone soil moisture in land-atmosphere interactions, there is no land data assimilation system (LDAS) that currently addresses this issue, limiting the capacity to positively impact weather and seasonal forecasting. We develop a new LDAS that can improve the skill of an ecohydrological model to simulate simultaneously su...
متن کاملRemote sensing for urban heat and cool islands evaluation in semi-arid areas
Cities are experiencing rapid population growth and consequently extensive urbanization. Land-use/land-cover change is one of the important elements worldwide, which significantly affect the environment. This study aims to describe the emergence of urban heat and cool islands as a result of changes in land-use/land-cover. Land surface temperature over a 32-year period in Isfahan city, Iran was ...
متن کاملContrasting short- and long-timescale effects of vegetation dynamics on water and carbon fluxes in water-limited ecosystems
[1] While it is generally believed that the magnitude and composition of vegetation cover influence land-atmosphere water and carbon fluxes, observations indicate that in some cases, fluxes are insensitive to land cover contrasts. This seeming inconsistency may be resolved by contrasting fluxes over short and long timescales. To explore this potential contrast, we developed and tested a model d...
متن کامل