Estimating the surface runoff from natural environment data

Estimating Land Surface Albedo from Satellite Data

Title: ESTIMATING LAND SURFACE ALBEDO FROM SATELLITE DATA Tao He, Doctor of Philosophy, 2012 Directed by: Dr. Shunlin Liang, Professor Department of Geographical Sciences Land surface albedo, defined as the ratio of the surface reflected incoming and outgoing solar radiation, is one of the key geophysical variables controlling the surface radiation budget. Surface shortwave albedo is widely use...

Estimating fractal dimension of natural terrain from irregularly spaced data

Estimating degree-day factors from MODIS for snowmelt runoff modeling

Degree-day factors are widely used to estimate snowmelt runoff in operational hydrological models. Usually, they are calibrated on observed runoff, and sometimes on satellite snow cover data. In this paper, we propose a new method for estimating the snowmelt degree-day factor (DDFS) directly from MODIS snow covered area (SCA) and ground-based snow depth data without calibration. Subcatchment sn...

Estimating Surface Reflectance from Images

Motivation: Physical surfaces such as metal, plastic, or paper have different optical qualities that lead to different characteristics in images. Information on the reflectance of a visual surface can be a valuable cue for inferring the properties or identity of a material. Such information is necessary to render a surface realistically in computer graphics and could also allow a vision algorit...

Investigating the Effect of Surface Gravel Cover on Runoff and Soil Erosion with Simulating Runoff

Surface gravel cover is an important factor for contoroling of soil erosion in dry area specially in area that plant can not grow because of excessive dryness and salinity. The objective of this study was investigation effect of different surface gravel cover on runoff and sediment yeild. For this porpose, 36 field plots with 20 meter length and 0.5 meter width at 3 percent slope were construct...