Map Catalog: June 2008

Sunday, June 29, 2008

Unstandardized Choropleth Map

http://images.google.com/imgres?imgurl=http://makingmaps.files.wordpress.com/2007/08/circle-choro1.jpg&imgrefurl=http://makingmaps.wordpress.com/2007/08/28/perceptual-scaling-of-map-symbols/&h=257&w=811&sz=64&hl=en&start=51&tbnid=Ef6qwzT4qmYkoM:&tbnh=46&tbnw=144&prev=/images%3Fq%3Dchoropleth%2Bmap%26start%3D40%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DN

The above map is an unstandardized choropleth map showing geographic areas to their values. I believe this is unstandardized because it is using raw data (also incomplete and inaccurate), there isn't a table of contents attached to the map.

Standardized Choropleth Map

The above map is a standardized choropleth map of Canada showing the percentage of population 14 years old and under from 2006. A standardized choropleth map uses standardized data instead of raw numbers.

Univariate Choropleth Map

http://images.google.com/imgres?imgurl=http://content.answers.com/main/content/wp/en/thumb/2/28/180px-Choropleth.gif&imgrefurl=http://www.answers.com/topic/thematic-map-1&h=112&w=179&sz=12&hl=en&start=6&tbnid=ErFThf-AjewyWM:&tbnh=63&tbnw=101&prev=/images%3Fq%3DUnivariate%2Bchoropleth%2Bmap%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DN

The above map is a univariate choroopleth map of the water use per day in the United States. A univariate map uses a single data (in this case it is water usage).

Bivariate Choropleth Map

http://images.google.com/imgres?imgurl=http://www.geocities.com/stevejford/Africa_Choropleth.jpg&imgrefurl=http://www.geocities.com/stevejford/new_page_2.htm&h=729&w=543&sz=51&hl=en&start=2&tbnid=auvyna5wjDy7OM:&tbnh=141&tbnw=105&prev=/images%3Fq%3DBivariate%2Bchoropleth%2Bmap%26gbv%3D2%26hl%3Den

The above map is a bivariate choropleth map showing land use, life expectancy and GNP per capita in Africa from 1989. A bivariate choropleth map displays two variable on a single map (in the top map it is showing two different variables - land use and GNP per capita). The main objective to this is to find a simple method for accurately and graphically issultrate the relationship between the two variables.

Unclassed Choropleth Map

http://images.google.com/imgres?imgurl=http://www.math.yorku.ca/SCS/Gallery/images/dupin2.gif&imgrefurl=http://www.math.yorku.ca/SCS/Gallery/milestone/sec5.html&h=1270&w=1223&sz=427&hl=en&start=1&tbnid=2E6yc4WZO3TV0M:&tbnh=150&tbnw=144&prev=/images%3Fq%3Dunclassed%2Bchoropleth%2Bmap%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DN

The above map is an unclassed choropleth map of rates of illiteracy in France. An unclassed choropleth map is a map where color, gray scale, graduated colors indicate the level of the attributes displayed.

Classed Choropleth Map

http://images.google.com/imgres?imgurl=http://www.ilstu.edu/~jrcarter/Geo204/Choro/map-AmFact-4eqint-orange-80pct.jpg&imgrefurl=http://www.ilstu.edu/~jrcarter/Geo204/Choro/&h=312&w=520&sz=57&hl=en&start=20&tbnid=24j8JVFARwIw7M:&tbnh=79&tbnw=131&prev=/images%3Fq%3Dclassed%2Bchoropleth%2Bmap%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DN

The above map is a classed choropleth map that shows the number of males per 100 females from the Census in the year 2000. A classed map groups data into classification intervals and then each interval is then assigned a graphic value that usually uses the principle of maximum contrast.

Saturday, June 28, 2008

Range Graded Proportional Circle Map

http://images.google.com/imgres?imgurl=http://mapmaker.rutgers.edu/355/dotProporCircle.jpg&imgrefurl=http://mapmaker.rutgers.edu/355/links.html&h=645&w=918&sz=112&hl=en&start=7&tbnid=ajgqtcSGSSjMIM:&tbnh=103&tbnw=147&prev=/images%3Fq%3Dproportional%2Bcircle%2Bmap%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DN

The above map is a range graded proportional circle map of an urban population taken from the U.S. Bureau of the Census in 1970. Range graded scaling is another scaling method term in which the circle is represented is grouped into classes and symbolized with a different size circles (in this case it would be population).

Continuously Variable Proportional Circle Map

http://images.google.com/imgres?imgurl=http://geographyfieldwork.com/Choropleth2.gif&imgrefurl=http://geographyfieldwork.com/DataPresentationMappingTechniques.htm&h=413&w=580&sz=40&hl=en&start=19&tbnid=3IZatPkl-aSHsM:&tbnh=95&tbnw=134&prev=/images%3Fq%3DContinuously%2Bvariable%2Bproportional%2Bcircle%2Bmap%26gbv%3D2%26hl%3Den

The above map shows a continuously variable proportional circle map of the Czech Republic from 1996. The circles are proportional in size of the example that is being represented.

Tuesday, June 24, 2008

DOQQ (Digital Orthophoto Quarter Quadrangles)

http://images.google.com/imgres?imgurl=http://code.google.com/apis/kml/documentation/mv-doqq-l5.jpg&imgrefurl=http://code.google.com/apis/kml/documentation/regions.html&h=374&w=444&sz=45&hl=en&start=11&tbnid=sMer3Nzeo6tlbM:&tbnh=107&tbnw=127&prev=/images%3Fq%3DDOQQ%26gbv%3D2%26hl%3Den

The above photo is a 1991 DOQQ of Mountain View, California. A Digital Orthophoto Quarter Quadrangles (DOQQ) is a digital image of an aerial map or photograph in one and four meter resolutions.

Remote Sensing Photo

http://maps.google.com/maps?ll=30.263454,-81.442501&z=16&t=h&hl=en

The above remote sensing photo is an aerial photograph of Mayo Clinic in Jacksonville, FL and it's surrounding areas. The type of remote sensing data that is used is an aerial photograph of the above said area.

Sunday, June 22, 2008

DEM (Digital Elevation Model)

http://images.google.com/imgres?imgurl=http://www.satimagingcorp.com/media/images/dem-5.jpg&imgrefurl=http://www.satimagingcorp.com/svc/dem.html&h=295&w=400&sz=132&hl=en&start=2&tbnid=FB5HV-GF9ptFVM:&tbnh=91&tbnw=124&prev=/images%3Fq%3DDEM%26gbv%3D2%26hl%3Den

The above image is a DEM (Digital Elevation Model) of Africa from 2005. A digital elevation model is a digital image of ground surface topography or terrain. It is also known as DTM or Digital Terrain Model.

DLG (Digital Line Graph)

http://images.google.com/imgres?imgurl=http://www.versamap.com/UsgsDlg_CaNvAzUt.png&imgrefurl=http://www.versamap.com/webdoc08.htm&h=520&w=620&sz=21&hl=en&start=11&tbnid=7L-wTCi4NFJBGM:&tbnh=114&tbnw=136&prev=/images%3Fq%3DDigital%2BLine%2BGraph%26gbv%3D2%26hl%3Den

The above image is a DLG (Digital Line Graph) of the Southwest area of the United States. A digital line graph is a digital representation of the features displayed on a USGS topographic map and in numerous scales. The digital line graph are separated into four layers: boundaries, transportation, surface water and contours.

DRG (Digital Raster Graph)

http://images.google.com/imgres?imgurl=http://edc.usgs.gov/images/drg_250_ex.jpg&imgrefurl=http://edc.usgs.gov/products/map/drg.html&h=503&w=648&sz=176&hl=en&start=7&tbnid=ibK8sAJ2PTgLTM:&tbnh=106&tbnw=137&prev=/images%3Fq%3DDRG%26gbv%3D2%26hl%3Den

The above image is a DRG (Digital Raster Graphic) map of Hartford, CT. A DRG is typically a digital image that is scanned on a paper of the USGS topographic map for the use on a computer and includes the original border information of the area.

Wednesday, June 18, 2008

Isopleth

http://images.google.com/imgres?imgurl=http://nadp.sws.uiuc.edu/isopleths/maps2003/phfield.gif&imgrefurl=http://nfwatershed.org/templates/System/details.asp%3Fid%3D40322%26PID%3D490669&h=501&w=739&sz=63&hl=en&start=11&tbnid=FklJ5fGeYIzPvM:&tbnh=96&tbnw=141&prev=/images%3Fq%3Disopleth%26gbv%3D2%26hl%3Den

The above map is a map with isopleths of pH, SO4 concentrations as well as NO3 concentrations around the United States from 1998. An isopleth on a map shows geographic measurement or contour line of pressure.

Isopach

http://images.google.com/imgres?imgurl=http://seeps.geol.ucsb.edu/images/pictures/geology_images/isopach_fast.jpg&imgrefurl=http://seeps.geol.ucsb.edu/pages/isopach.html&h=337&w=512&sz=40&hl=en&start=5&tbnid=i-weWZiQqQylKM:&tbnh=86&tbnw=131&prev=/images%3Fq%3Disopach%26gbv%3D2%26hl%3Den

The above is a map with isopach of Holocene Overburden. According to the above website "the rainbow contours correspond to thickness of overburden sediment on the ocean floor..." A map with isopach shows rock and sediment thickness.

Monday, June 16, 2008

Isohyet

http://images.google.com/imgres?imgurl=http://www.lib.utexas.edu/geo/balcones_escarpment/images/p6fig4.gif&imgrefurl=http://www.lib.utexas.edu/geo/balcones_escarpment/pages1-14.html&h=1138&w=1100&sz=43&hl=en&start=16&tbnid=_QVLSUwHX1WkHM:&tbnh=150&tbnw=145&prev=/images%3Fq%3Disohyet%26gbv%3D2%26hl%3Den

The above map is a map with isohyets of Texas from 1961 to 1980 showing the average annual percipitation, it indicating the increased rainfall. Isohyet is a type of contour map where a line joins points of equal precipitation. A map with isohyets is also called an isohyetal map.

Isotachs

http://images.google.com/imgres?imgurl=http://wxmaps.org/pix/avnmr5.00hr.png&imgrefurl=http://wxmaps.org/pix/avnmr.00hr.html&h=620&w=800&sz=75&hl=en&start=5&tbnid=79DXLQoRt3iElM:&tbnh=111&tbnw=143&prev=/images%3Fq%3Disotachs%26gbv%3D2%26hl%3Den

The map above is a map with isotach showing the wind speed in the United States on June 16, 2008. An isotach is a type of contour map where a line on the map connects points where winds of equal speeds have been recorded. This will let the meterologist know the direction a storm will be moving.

Isobar

http://images.google.com/imgres?imgurl=http://www.uwlax.edu/faculty/skala/Image58.gif&imgrefurl=http://www.uwlax.edu/faculty/skala/Air-Pressure.htm&h=650&w=900&sz=29&hl=en&start=2&tbnid=C45iMAmp8OCR9M:&tbnh=105&tbnw=146&prev=/images%3Fq%3Disobar%26gbv%3D2%26hl%3Den

The above map is a map with isobar of the United States from September 8, 1998. An isobar is a type of contour map where a line on the map that connects points of equal atmospheric pressure. It measures air pressure to help predict the weather patterns.

Sunday, June 15, 2008

LIDAR

http://imaging.geocomm.com/gallery/

The above photo is a LIDAR image of ground zero (World Trade Center) taken on September 27, 2001. This was taken from an altitude of 3,300 feet from NOAA. A LIDAR image is an image using infrared laser light instead of radio waves which is capable of detecting particles and conditions in the atmosphere.

Doppler Radar

http://images.google.com/imgres?imgurl=http://images.myforecast.com/images/cw/radar/kjax/kjax_anim.gif&imgrefurl=http://www.myforecast.com/bin/radar_maps.m%3Fcity%3D13161%26metric%3Dfalse%26isAnimated%3Dtrue%26mapLevel%3Dmetro&h=400&w=400&sz=370&hl=en&start=11&tbnid=GHUIyrmx7RpFFM:&tbnh=124&tbnw=124&prev=/images%3Fq%3DDoppler%2Bradar%2BJacksonville%26gbv%3D2%26hl%3Den

The above doppler radar is an image from Savannah, GA to Orlando, FL areas taken on June 15, 2008 at 12:18 p.m. A doppler radar measures the velocity of a moving object by measuring the doppler shift.

Black and White Aerial Photo

http://images.google.com/imgres?imgurl=http://www.town.ridgway.co.us/code/Aerial_Photo_Only_2007.jpg&imgrefurl=http://www.town.ridgway.co.us/comp_plan_maps.htm&h=964&w=1637&sz=111&hl=en&start=2&tbnid=N7WgXVKiJyzjZM:&tbnh=88&tbnw=150&prev=/images%3Fq%3Dblack%2Band%2Bwhite%2Baerial%2Bphoto%26gbv%3D2%26hl%3Den

The above photo is a Black and White Aerial Photo from 2005 of the town of Ridgway, CO and it's surrounding areas. Black and white aerial photography is used most often because color photography is often affected by the atmospheric haze.

Saturday, June 14, 2008

Infrared Aerial Photo

http://images.google.com/imgres?imgurl=http://www.outintheboonies.com/Three_Forks/doq_map2.jpg&imgrefurl=http://www.outintheboonies.com/Three_Forks/&h=959&w=719&sz=204&hl=en&start=5&tbnid=9Dfq6JFss509LM:&tbnh=148&tbnw=111&prev=/images%3Fq%3Dinfrared%2Baerial%2Bphoto%26gbv%3D2%26hl%3Den

The above infrared aerial map is a map of Three Forks Marsh located west of Brevard county near Melbourne, Florida from 2000 showing roads and trails. An infrared aerial map is a map that is used to document changes to the enviroment.

Cartographic Animation

http://maps.unomaha.edu/books/iacart/book.html

The above cartographic animation map is a map that is showing the change in irrigation use in Nebraska during a 33 year period between 1954 and 1987. A cartographic animation map is a map that shows the movement of a specific topic in this case it would be the irrigation use.

Thursday, June 12, 2008

Statistical Map

http://images.google.com/imgres?imgurl=http://www.denvergov.org/Portals/335/images/SOPA_lar02.jpg&imgrefurl=http://www.denvergov.org/2001_crime_stats/Larceny/Larceny2/tabid/377586/Default.aspx&h=1545&w=2097&sz=365&hl=en&start=10&tbnid=Tgj_SJGVT_NuJM:&tbnh=111&tbnw=150&prev=/images%3Fq%3DStatistical%2Bmap%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DN

The above statistical map is a 2002 larceny crime statistics map of Denver. These are crimes that have been reported from 2001 to 2002 showing a decrease, increase and no changes in the areas. A statistical map or distribution map represents the interest of the actual theme (in this map it would be larceny crime).

Cartogram

http://maps.grida.no/go/graphic/world_economy_cartogram

The above cartogram map shows the world's economy in the year 2000. This highlights the wealth and power in the world. A cartogram map presents statistical data on the map.