Pages

Tuesday, January 28, 2014

Chippewa River, Eau Claire, Wi

The following map displays the depth of the Chippewa River as it flows from the North through the city of Eau Claire, WI. The Chippewa River used to be utilized for logging purposes but more recently has been re-purposed by the city's younger population as a popular destination for floating (tubing) during the warmer months.

The river is very calm during most of the year but there have been numerous drownings in the river and showing where the river is at it's deepest and shallowest will help not only the river faring population but also emergency response personnel who don't have radar available to them.

I have labeled major features within the area the basemap covers starting the river map at Madison Street and ending at Clairemont Avenue. When floating down the river the most common starting spot is the confluence of the Chippewa and Eau Claire Rivers at Phoenix Park and ending at the boat launch at Hobbs Ice Arena. The contour lines mark every five feet in depth starting with five feet for the first line.

Note that these depths should be expected to be found while the river is calm with no recent rain or flooding.

Programs used in the creation of this map: Photoshop, Illustrator, ArcMAP
Full resolution: 24" x 20"
Download


Sunday, December 29, 2013

Wisconsin ETM+ Pan-Mosaics

The following map of Wisconsin was created by mosaicing several Landsat 7 Enhanced Thematic Mapper Plus (ETM+) images together. The images are displayed in a 7 (short-wave infrared), 4 (near infrared), 2 (green) band combination and have been pan-sharpened with band 8 (panchromatic). Pan-sharpened means that the image has been re-sampled from its original 30m resolution to a 15m resolution (which doesn't show on the picture below due to size restrictions on pictures uploaded to blogger as well as exporting the map from ArcMAP). The images range in date taken from 1999 through 2003 which is when Landsat 7 ETM + developed a defect which made every image taken afterwards have striping which is actually a lack of data in parts of the image. A description of what the colors mean using this band combination can be found here.


Program used: IMAGINE, ArcMap 10.2, Illustrator, Photoshop
Full resolution: 18" x 24"

Wednesday, December 25, 2013

Landsat 1 MSS Path 28 Row 29


This map displays the very first LANDSAT image taken for eastern Minnesota and west-central Wisconsin taken 8/12/1972. The image is displayed in a 6,5,4 band combination which creates a "false color" look to the area because the bands involved include near-infrared, red, and green. 

Green vegetation appears in shades of red with moist vegetation appearing more red than dry vegetation. Urban areas are cyan, and soils are shades of brown. Clouds in the image are white and water appears black because of the lack of infrared energy being reflected from the water.

Counties and state boundaries are overlaid on top of the image. Large cities and prominent highways and interstates are labeled as well as the states


Programs used in the map construction: ArcMAP 10.2, IMAGINE, and Adobe Illustrator
Full resolution: 16" x 16"
Download