Download - Western Colorado vs. Eastern Colorado Where does your water go? Constance L. Danner 29 November 2005
Western Colorado vs.
Eastern Colorado
Where does your water go?
Constance L. Danner29 November 2005
Outline
• Objectives• Background• Data Sources• Map Creation• Analysis• Future Work• Questions
Objectives
• Become familiar with Arc Hydro by plotting the Colorado Headwaters and Big Thompson Watersheds.
• Evaluate the precipitation, stream flow and snow depth in regards to the Continental Divide.
The West vs. The East
South Platte River Basin http://co.water.usgs.gov/nawqa/splt
Colorado River Basin http://waterknowledge.colostate.edu/colo_map.htm
How are they connected?
Map of Colorado-Big Thompson Project http://www.ncwcd.org/project_features/location_map.asp
Colorado-Big Thompson (C-BT)
Project by the Numbers30 The number of cities and towns served by the C-BT Project
693,000 The number of acres irrigated by C-BT water in northeastern Colorado
12 The number of reservoirs in the system
35 The miles of tunnels in the system
95 The miles of canals in the C-BT system
700 The miles of transmission lines
310,000 The number of acre foot units of water in the C-BT Project
213,000 The approximate number of acre feet delivered annually through the system
1.6 million The number of acres in the Project's service area
1 The number of acre feet of water that an average urban family of five requires annually
13.1 The length in miles of the Alva B. Adams Tunnel
9.9 The circumference in feet of the tunnel
12 The number of people appointed to serve on the NCWCD Board of Directors
$1.50 The original cost, per acre-foot unit, for C-BT water when applications were first accepted in 1937-38
$1,254.30 The amount paid in 1943 to have a movie, "Green Fields," made about C-BT construction
1/16th of an inch The difference between the center line from the west and the one from the east when the Adams Tunnel was holed through
http://www.ncwcd.org/project_features/cbt_by_the_numbers.asp
Data Sources
• Hydrologic Unit Maps (HUC)– http://water.usgs.gov/lookup/getspatial?huc250k
• National Atlas of the United States– http://www.nationalatlas.gov/atlasftp.html
• DEM Data from EPA Water Science Websites– http://www.epa.gov/waterscience/ftp/basins/gis_data/
huc/10190006/ – http://www.epa.gov/waterscience/ftp/basins/gis_data/
huc/14010001/ • National Resources Conservation Services for
Colorado– http://www.co.nrcs.usda.gov/snow/
• NNDC Climate Data Online– http://cdo.ncdc.noaa.gov/pls/plclimprod/
somdmain.subquery1
Area of Interest
DEM Processing
LegendWatershedPtswithStreamGages
DrainageLine
NHDFlowline_ProjectWatershed
<all other values>
HydroID620
622
624
626
628
630
632
634
636
638
640
642
644
646
648
650
652
654
656
658
660
662
664
666
Subbasin
Watershed Processing for Colorado Headwaters and Big Thompson
WatershedsPrepared by Constance L. Danner ·
0 70,000 140,00035,000 Meters
Step 8: The final watershed delineation for each batchpoint. The batchpoints were
joined with the USGS Stream Gages. Thiscreated a total of 24 Watersheds.
LegendBT_USGS_Stream_Gage
BatchPoint
BT_NHDFlowine_P
DrainageLine
BT_Subbasin_P
Watershed
0 25,000 50,00012,500 Meters
·
Watershed Processing for the Big Thompson WatershedPrepared by Constance L. Danner
Note: Adjoint Catchment does not fill the entire Big Thompson Subasin Outline. Also, there is no break in the drainage lines unlike the
Colorado Headwaters delineation shown previously.
Note: AgreeDEM for Big Thompson demonstrates
the large change in elevation from
4349 m to 1405 m.
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Colorado Headwaters and Big Thompson Watersheds - Rainfall Gages, USGS Stream Gages, and SNOTEL Sites
Prepared by Constance L. Danner
·
93,000 0 93,00046,500 Meters
Legend# SNOTEL_Site_Locations
ÔÕ Rainfall_Gages_Proj
Stream_Gages
Continental_Div
RF_BT_COHW
BT_COHW_Lakes
COHW_BT_DEM_Proj
ValueHigh : 4349.135254
Low : 1421.549438
What Time Frame to Choose?
Missouri Basin Drought Data http://www.drought.unl.edu/whatis/palmer/missouri.gif
Upper Colorado Drought Data http://www.drought.unl.edu/whatis/palmer/upco.gif
Average Annual Stream Flow
Average Stream Flow from 2000 to 2003
0
200
400
600
800
1000
1200
1400
1600
0674
1510
0901
0500
0902
4000
0902
6500
0903
2000
0903
3100
0903
3300
0903
4250
0903
4900
0903
5700
0903
5900
0903
6000
0903
7500
0903
8500
0904
1090
0904
1400
0905
8000
0905
9500
0907
0500
USGS Gage Number
Str
ea
m F
low
(c
fs)
Average Annual SNOTEL Data
Average Annual SNOTEL Data from 2000 to 2003
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
05J12S 06K12S 06J06S 05J04S 06J05S 05K06S 05K21S 05J39S 05K14S 06J08S 05J10S
SNOTEL Site ID
Ave
rag
e A
nn
ual
Dep
th (
in)
Average Annual Precipitation Data
Average Annual Precipitation Data from 2000 to 2004
0.00
200.00
400.00
600.00
800.00
1000.00
1200.00
1400.00
1600.00
1800.00
5106
0
5276
1
5293
4
5311
6
5335
9
5350
0
5405
4
5413
5
5466
4
5523
6
5761
8
5883
9
5909
6
5917
5
Rainfall Gage # (COOPID)
Ave
rage
An
nual
Pre
cip
itatio
n (
inch
es)
Precipitation vs. Elevation
Average Annual Precipitation vs. Elevation
0.00
200.00
400.00
600.00
800.00
1000.00
1200.00
1400.00
1600.00
1800.00
5040.026 5229.987 5503.937 5750 5930.118 7399.935 7459.974 7649.935 7759.843 7785.105 8288.058 8560.04 9103.019 9520.013
Elevation (ft)
Pre
cip
ita
tio
n (i
n)
Future Work
• Final Paper and Analysis