WATERSHED – WAY TO SOURCE SUSTAINABILITY. Dhirenkumar Chavda Consultant – RDWP & WWM UNICEF - PHED. Climate. Geomorphology. Vegetation. Land uses. Albedo. Watershed hydrology. Watershed components. http://www.epa.gov/owow/watershed/whatis.html. Watersheds.
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WATERSHED – WAY TO SOURCE SUSTAINABILITY DhirenkumarChavda Consultant – RDWP & WWM UNICEF - PHED
Climate Geomorphology Vegetation Land uses Albedo Watershed hydrology Watershed components
http://www.soils.umn.edu/academics/classes/soil2125/doc/s2chap5.htmhttp://www.soils.umn.edu/academics/classes/soil2125/doc/s2chap5.htm http://geohazards.cr.usgs.gov/wa/lsphotos1/photos4.html Watershed components: Geology • Bedrock • Type and distribution of soils
http://soils.usda.gov/gallery/state_soils/ http://soils.usda.gov/gallery/state_soils/ http://www.nre.vic.gov.au/web/root/Domino/vro/vroimages.nsf/Images/gloss-ferr/ Geology: Soil permeability • The ease with which water penetrate or pass through a bulk mass of soil or a layer of soil
Geology: soil pore space and water content • Total porosity of a soil determines maximum water content at saturation; soils within zone of aeration are seldom saturated. • Textural (primary) porosity: voids between aggregates. • Structural (secondary) porosity: voids within aggregates – fracture or poor zones http://wrgis.wr.usgs.gov/open-file/of99-168/Pp-limestone.jpg
Geology: Groundwater vs. soil moisture • Groundwater: • Subsurface water in the zone of saturation that is free to move under the influence of gravity, often horizontally to stream channels • Soil Moisture: • Subsurface water in the unsaturated zone held in place by capillary forces
Geology: Infiltration • Infiltration is the flow of water downward through the upper layers of soil
Before Storm • End of Storm • One day after • Two days after • Three days after Adopted from: http://www.nre.vic.gov.au/web/root/Domino/vro/vroimages.nsf/Images/gloss-ferr/ Geology: soil moisture profile after a rain event
LITHOLOGY GEOMORPHOLOGY STRUCTURE HYDROLOGY BASE Generation of ground water prospects map by integrating five layers using GIS
Rajiv Gandhi National Drinking Water Mission project Implementation in Dhanbad district, Jharkhand National Remote Sensing Agency
Watershed: Water budgets • Annual water budget for Lawrence Lake, Michigan, and Mirror Lake, New Hampshire