Remote Sensor

This is a remote sensing image of the Rio Grand. There is a set of different images that show the changes over time in regards to the size and landscape changes to the area. The interesting thing I noticed about the images is that color changes describe the changes over time. It does not require on scene data retrieval to evaluate the changes.

LIDAR Map

http://www.nasa.gov/centers/goddard/images/content/67414main_lidar_changes.jpg

This is a sample of Mt. St. Helen, taken by NASA. The LIDAR (Light Detecting and Ranging) measures properties of scattered light to find range and/or other information of a distant target by using an optical remote sensor. The information retrieved can track changes over time in a particular area.

Classed choropleth maps

http://www.ilstu.edu/~jrcarter/Geo204/Choro/map-AmFact-4round-green-80pct.jpg

Choropleth maps are used to compare information throughout the map. For instance, this map compares the number of males per every hundred females within that state. It uses shades of colors for different numbers of males. The darker the green the more males compared to every hundred females. Each area or class is assigned a different symbol or color in a classed choropleth map.

Isopleth

http://www.idahogeology.org/Services/Hydrogeology/PortneufGroundWaterGuardian/my_drinking_water/hotwater_topics/water_capdraft/watercap_fig3.jpg

This is an isopleth image of a detailed water balance of the upper part of the lower Portneuf River valley. The purpose of an isopleth image is to show features of meteorological charts, connecting points which have an equal value of some variable at a given time and spatial area. This shows the possibilities of future water output over time. It compares what is seen at a particular time to a possibility in the future for that feature. The isopleth uses contour lines to demonstrate the possible water levels over different times.

Doppler Radar

http://www.ci.ocoee.fl.us/General/Images/DopplerRadar.jpg

This image is a Doppler radar screen from the well known weather channel. Doppler radar images uses an antenna to send a microwave out and the wave returns to the antenna gathering information. In weather, the antenna sends out pulses and based on the precipitation determines the strength of the returned wave. Doppler affect is used in many different items such as radar guns, used by law enforcement. The same affect is used to create images of areas to show rain and storms. Doppler radar does not just mean weather radar. Doppler is the effect of the antenna.

Infrared aerial photo

http://ecosystems.mbl.edu/pie/data/MAP/irparker.jpg

This is an infrared aerial photo of water bodies of the Plum Island Sound Estuary in northeastern Massachusetts . The purpose of an infrared aerial photo is show change over time. It uses portions of spectrum lights to watch changes within the area. It can show how diseases and toxins affect certain areas over time. If the lights are filtered properly then this type of photo can explain important information. It is used by a lot of research groups.

Planimetric Map

http://www.ncdot.org/doh/PRECONSTRUCT/highway/photo/Products/images/Planimetric_map.jpg

The above map is a Planimetric Map or sometimes called a line map. A planimetric map shows locations on only a horizontal level. It does not show elevation like the topographic map. Planimetric maps are more likely to be computer generated images such as the one above. These types of maps are simple to read, usually displaying roadways, buildings, and other physical locations.