Isotach

An Isotach map shows a contour line, connecting various points of equal wind speeds.

Example map shows the wind speeds over England Ireland and Scotland.

Reference URL: http:/ Isohyet/expert.weatheronline.co.uk/is10_frame.htm

Isobar

An isobar is a unvarying line of pressure. The pressure information is reflective of atmospheric pressure. These types of maps usually have multiple lines which represents the changes in pressure over large areas.

The example map shows a low pressure cell.

Reference URL: http://www.newmediastudio.org/DataDiscovery/Hurr_ED_Center/Hurr_Structure_Energetics/Closed_Isobars/Closed_Isobars.html

LIDAR (Light Detection and Ranging)



LIDAR (Light Detection and Ranging) is a remote sensing technology which profiles or scans a specified target. LIDAR is usually mounted onto a plane and with the aid of GPS scans the specified area.

Example Image is of San Francisco and data was collected in September 2002.

Reference URL: http://www.ngs.noaa.gov/RESEARCH/RSD/main/lidar/lidar.shtml

Doppler Radar

Doppler radar uses the Doppler Effect to display data that is tracked within a wide area. The Doppler radar is most commonly known to be used in meteorology. The doppler radar is shown on news channels to show current weather and is used to predict future weather patterns.

Example image is of previous weather conditions, therefore not current.

Reference URL: http://www.baynews9.com/Doppler9000.html

Black and White Aerial Photography

In black and white aerial photography is a form of remote sensing which captures the images, available to the naked eye. These images can be acquired on the ground, air or space.

The example image is of Lyttleton Harbor, on the South Island of New Zealand.

Reference URL: http://www.fas.org/irp/imint/docs/rst/Sect10/Sect10_1.html

Infrared Aerial Photography

Infrared aerial photography uses infrared film and digital sensors which are sensitive to a certain area within the light spectrum. Infrared photography is sensitive to wavelength which human eyes can not identify without aid. This specific type of photography can help analyze oceans and wetlands.  

The example image is of the Sacramento River Deep Water Ship Channel and Levees. Image ID:AHLB2300

Reference URL: http://www.aerialarchives.com/Infrared-Aerial-Photography.htm

Statistical Map

A statistical map represents various types of statistical data in a map form. For example, data such as rainfall and voting history could be displayed on a statistical map.

The example map of Napoleon’s Russian campaign of 1812. The encyclopedia Britannica explained that the map is showing, “The size of Napoleon’s army is shown by the dwindling width of the lines of advance (green) and retreat (gold). The retreat information is correlated with a temperature scale shown along the lower portion of the map. Published by Charles Minard in 1869.”

Reference URL: http://www.britannica.com/EBchecked/media/70821/Statistical-map-of-Napoleons-Russian-campaign-of-1812-The-size