Intercomparison of Sensible Heat Flux from Large Aperture Scintillometer and Eddy Covariance Methods: Field Experiment over a Homogeneous Semi-arid Region
نویسندگان
چکیده
منابع مشابه
Large Aperture Scintillometer Intercomparison Study
Two field studies with six large aperture scintillometers (LASs) were performed using horizontal and slant paths. The accuracy of this novel and increasingly popular technique for measuring sensible heat fluxes was quantified by comparing measurements from different instruments over nearly identical transects. Random errors in LAS measurements were small, since correlation coefficients between ...
متن کاملAssessing Inter-Sensor Variability and Sensible Heat Flux Derivation Accuracy for a Large Aperture Scintillometer
The accuracy in determining sensible heat flux (H) of three Kipp and Zonen large aperture scintillometers (LAS) was evaluated with reference to an eddy covariance (EC) system over relatively flat and uniform grassland near Timpas (CO, USA). Other tests have revealed inherent variability between Kipp and Zonen LAS units and bias to overestimate H. Average H fluxes were compared between LAS units...
متن کاملComparison of Sensible Heat Fluxes Measured by a Large Aperture Scintillometer and Eddy Covariance System over a Heterogeneous Farmland in East China
The sensible heat is an important component in surface energy partitioning over the land surface. This paper compared the sensible heat fluxes measured by a large aperture scintillometer system (LAS) and an eddy covariance system (EC) over a rice paddy with a patch of mulberry seedlings in the east China coastal region during the period from 13 September–11 October 2015. During the observation ...
متن کاملUncertainty analysis of computational methods for deriving sensible heat flux values from scintillometer measurements
The use of scintillometers to determine sensible heat fluxes is now common in studies of land-atmosphere interactions. The main interest in these instruments is due to their ability to quantify energy distributions at the landscape scale, as they can calculate sensible heat flux values over long distances, in contrast to Eddy Covariance systems. However, scintillometer data do not provide a dir...
متن کاملMulti - scale sensible heat fluxes in the suburban environment from 1 large aperture scintillometry and eddy covariance
10 Sensible heat fluxes (QH) are determined using scintillometry and eddy covariance over a 11 suburban area. Two large aperture scintillometers provide spatially integrated fluxes across path 12 lengths of 2.8 km and 5.5 km over Swindon, UK. The shorter scintillometer path spans newly built 13 residential areas and has an approximate source area of 2-4 km, whilst the long path extends from 14 ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Boundary-Layer Meteorology
سال: 2009
ISSN: 0006-8314,1573-1472
DOI: 10.1007/s10546-009-9460-9