Isopach Map

An isopach represents the variation of thickness within a tubular unit. This isopach map represents a picture of a gas field. It shows the thickness of the sandstone in which they go through in order to get to the oil. The hottest and thickest levels are in the center pink areas at 45 feet and thins out to 20 feet in the blue areas. http://www.cartage.org.lb/en/themes/Sciences/Earthscience/Geology/OilandGas/HydrocarbonExploration/GeologicMaps/GeologicMaps.htm

Isohyet Map

An Isohyet map represents precipitation levels within a specific areas, in this particular map we can see the precipitation level in the state of California in 1998. You can see that more brown and yellow colors indicate less precipitation. The southern part of the state is much dryer than the north and within the entire state the highest level of precipitation is only 84-96 inches within the entire year.

http://www.waterplan.water.ca.gov/waterpie/precip/precip.cfm

Isotach

Given a certain area, a isotach map shows winds speeds within that area. The distance of the lines between one another depicts the speed of the winds. The closer the lines are together the faster the wind speeds are. For example, within this map you can see the lines toward the north of the map are much closer together than those in the south, this in other words indicating higher wind speeds in the north.

http://expert.weatheronline.co.uk/is10_frame.htm

Isobars

An Isobar map is the joining of points at an equal atmospheric pressure measured in millibars. These lines do not touch one another and vary each day due to the earth's rotation. You can see in the map where is says H and L this represents the highs and lows of the pressures within the map.

http://www.halesowenweather.co.uk/pressure_charts.htm

LIDAR

This LIDAR map represents a three dimensional view of lidar-based topography in 2007 as well as on September 8th 2008 if you click on the link to see it change. The blue areas represent elevations below mean high water; lower elevations are shown by brown and higher levels are represented by greens and reds. A LIDAR system works on the basis of radar and this is also displayed within this map.

http://coastal.er.usgs.gov/hurricanes/gustav/lidar/

Doppler Radar

It is interesting to do some research on doppler radar because there is more too it than we see on our everyday weather channels. This photo of a doppler radar shows storms moving east across the Tennessee Valley in May of 2008. Doppler radar is used to to display objects moving at a distance in order to show what is moving in a certain direction, this helps to warn those within that certain area. http://www.al.com/news/huntsville/index.ssf/2008/05/04-week/

Black and White Aerial Photo

Black and white aerial photo's are very similar to that of infrared but are meant to show more specific surface features. Within a black and white photo the details are really able to pop out, more so than with color and through this photo of this city you can really get a sense of that. You can see specific deatil of road ways, houses and land ownership.

http://freegeographytools.com/2007/goofing-around-with-pan-sharpening