They are: n36_w083_3arc_v1.tif
n36_w084_3arc_v1.tif
n37_w083_3arc_v1.tif
n37_w084_3arc_v1.tif
The final products were 1- a stream feature shapefile showing the streams of the mosaiced DEM and 2- the basin zones as a raster. Both of these files along with a .mxd of the layers can be accessed from a combined zipped layer package compatible with Arcmap 10.1 at this address which map be copied & pasted: http://students.uwf.edu/kfm4/Group5StreamBasin.zip
One may need to create a geodatabase to import the layers for extraction.
Taking the clipped mosaic through the hydrology study process resulted in these individual layers being created as shown in the map below:
Data Process:
1- The originating DEMS have the characteristics as
described above.
2- A mosaic was created with the 4 DEMS, which was clipped
to the study area.
3- Using the spatial analyst tool in arcmap 10.1 the fill
tool was the first step.
4- The resulting fill layer was run through the flow
direction tool without any errors.
5- A stream raster (flow accumulation) was created from the
flow direction result.
6- The total raster count was taken from the attribute
table- sum value. One (1%) percent was calculated as 46,140.20.
7- The con tool was run using the stream raster as input;
with an expression of value>46140, with a constant value of 1.
8- Although the stream to feature layer continually gave an
error, a check in arcatalog reveiled it ran correctly but needed the coordinate
system manually established. WGS 1984 UTM 17N was set.
This steam feature is the final output in the layer file provided.
9- A final hydrology analysis was created as the basin DEM
which is the second layer of the map.
The layer zipped file will appear similar to this map without the study area zone and street basemap from arcgis online.
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