Back to Search
Start Over
Observations of boundary layer development during the HAPEX-Sahel intensive observation period
- Source :
- Journal of Hydrology 188/189 (1997), Journal of Hydrology, 188/189, 998-1016
- Publication Year :
- 1997
- Publisher :
- Elsevier BV, 1997.
-
Abstract
- The radiosonde measurement programme of the boundary layer during the Hydrologic Atmospheric Pilot Experiment in the Sahel (HAPEX-Sahel) is described. Typical examples of boundary layer evolution at two sites for wet and dry periods are shown. The Central Site was consistently dryer and warmer than the Southern Site and also reached higher boundary layer depths in the dry period in October. A brief analysis of surface flux variability is used to determine the errors associated with using a single average value for boundary layer input. Budget calculations using a mixed layer model show that advection plays an important role in the early morning budgets of heat and moisture. In the dry period subsidence also contributed to boundary layer heating.
- Subjects :
- Mixed layer
Winand Staring Centre for Integrated Land, Soil and Water Research
Soil and Water Research
evapotranspiration
Flux
hydrology
planten
precipitation
hydrologie
Atmospheric sciences
law.invention
Staring Centrum
law
evapotranspiratie
grenzen
Precipitation
boundaries
Water Science and Technology
Moisture
plants
Advection
sahel
Subsidence (atmosphere)
neerslag
Boundary layer
microklimaat
Climatology
Winand Staring Centre for Integrated Land
Radiosonde
Environmental science
microclimate
Subjects
Details
- ISSN :
- 00221694
- Database :
- OpenAIRE
- Journal :
- Journal of Hydrology
- Accession number :
- edsair.doi.dedup.....c97dbb57aef9eefab5d725819c2382c1