Useful steps using WEB GIS to Prepare Hydrology Chapter of SDMP and DPR for Surface water scheme

wbadmipUseful steps using WEB GIS to Prepare Hydrology Chapter of SDMP and DPR for Surface water schemeType of Document-Technical Literature WEBGIS-001(R1)

SPMU03-Jul-15

A. How to collect catchment data, map and its characteristics for hydrology chapter?1. `www.wbadmip.org Gis Web GIS(new) Water Resources Planning Chose district 2. Open the map with various layer3. Click Enhanced Locate wizard and give lat and long in Degree Decimal or Degree Minutes seconds(DMS).

4. Click Locate button and it locates on map with

5. Click find Catchment area tool

6. Click pour point and then place mouse on already located pin and then press submit , it will get Area of catchment in sqkm and value of Average C (for use in Rational formula based on LULC).

7. Take Print in A4 size from print tool [ kindly unblock the popup by clicking allow when browser prevent it]

Similarly to find LULC

8. Click Find land Use tool 9. Draw the area of catchment by picking free hand tool and moving mouse around the catchment boundary and then press submit button.

10. You get the table of LULC11. You may transfer the table by clicking on copy to clip board and pasting it in excel sheet and then paste the table in word file if necessary as belowAreaClass_name

3.369446516Double / tripple

156.8409576Kharif _only

23.87844658Other wasteland

1.400503397Scrubland

12. Similar way you can find the water body within the catchment area by choosing Waterbody tool and by picking free hand tool and moving mouse around the catchment boundary and then press submit button. It will give total water body within the catchment or area of interest and total area of water body.

13. You may Use PET value of ISRO as available in our website in Water Resources Tool.14. Calculate water availability by apply suitable rainfall data and catchment area and c value using standard formula.

Hydrology ChapterTable 1: Features of watershedLULC in Hectare

Area(ha)Class_name

3.369446516Double / tripple

156.8409576Kharif _only

23.87844658Other wasteland

1.400503397Scrubland

1.2. Hydro Geologic Profile of the Area.FeatureDescription

Agro Climatic ZoneRed & Laterite zone

Temperature Hot season: 44 Centigrade.Cold season: 7.5Centigrade.

Rainfall1300MM

GeologyArcian Hard Rock.

SeasonsWinter: December to FebruaryRainy: June to SeptemberSummer: March to May

Soil TypeMixed with rock, gravel, moorum, kankar and sticky soil.

River water Level (Jhora)9 metre in summer & 6 metre in rainy season.

Water QualitySafe

FeaturesValue

Name of River/Stream

Level of streamPrimary/Secondary/..

River BasinGanga

Catchment area1.85

Width of river/stream15m

Depth of River (Full water level to Bed level)3-3.5m

Average Flow in the river during Jan.-Mar.NA

Number of months river flows (jhora) 12 months.

Water level m (Jan) .3metre

Water level m (May) .1 metreComment by Anju Gaur: Correct

Water Quality Safe.

MONTHLY AVARAGE WATER AVAILIBILITY MonthRainfall (mm)Runoff coeffRunoff mmPotential Evap mmArea (ha)EstimatedRunoff Ham

June245.840.373.75215018517.7304

July273.80.4109.526018539.553

August295.940.5147.976018543.6489

September280.660.5140.336018540.8221

October40.120.520.06901850

November14.480.456.516901850

December13.960.456.2821201850

January16.240.254.061201850

February11.820.252.9551201850

March14.240.253.561801850

April35.940.258.9851801850

May79.90.2519.9752001850

Total 1322.94543.9651430185141.7544

*For further assistance please call to GIS cell of WBADMIP