A projected coordinate system based on a map projection such as transverse mercator, albers equal area, or robinson, all of which along with numerous other map projection models provide various mechanisms to project maps of the earths spherical surface onto a twodimensional cartesian coordinate plane. There are numerous gis software packages available. Convert utm zone 17 nad83 to albers equal area conic hpgn summary. Yukon albers is the default projection for most yukon government data and projects. Contractormanufacturer is environmental systems research institute, inc. Type albers equalarea conic projection referencesystem grs80 parameters. The lambert azimuthal equal area projection preserves the area of individual polygons while simultaneously maintaining a true sense of direction from the center. When exporting to an esri shapefile from pahtfinder office. For any program which uses the proj4 libraries, like dnr garmin, open. In this first course of the specialization gis, mapping, and spatial analysis, youll learn about what a gis is, how to get started with the software yourself, how things we find in the real world can be represented on a map, how we record locations using coordinates, and how we can make a two. What are the projection parameters for the routemap. There are a few options in order for you to create an esri projection file to use with shapefiles exported from trimble pathfinder office. The course includes both practical software training and explanations of the. In r, i see that the new projected shapefile has the usgs albers projection string.
Although scale and shape are not preserved, distortion is minimal between the standard parallels. Although neither shape nor linear scale is truly correct, the distortion of these properties is minimized in the. Projecting a prism raster from nad1983 to albers equal area pcs in arcmap. However, users are strongly encouraged to utilize nad83 instead when possible. It uses two standard parallels to reduce some of the distortion that would be found in a. I have a raster in nad83 ca state plane zone ii us feet that i need to project to nad83 ca teale albers us feet. The albers equalarea conic projection, is a map projection that uses two standard parallels to reduce some of the distortion of a projection with one standard parallel. Esri projection 1020 europe albers equal area conic home.
The albers map projection is an equal area conic projection best suited for land masses extending in an easttowest orientation at midlatitudes. This article describes how to use the arcview projection utility to convert data projected in utm zone 17 nad83 meters to albers equal area conic hpgn. Software sites tucows software library shareware cdroms software capsules compilation cdrom images zx spectrum doom level cd featured image all images latest this just in flickr commons occupy wall street flickr cover art usgs maps. We use the albers projection because two of our main data contributors are fdep and fdot who both work in albers, and because we distribute the data in one statewide projection. Geographic information system gis, cartography, esri, mapping, spatial analysis. Most gis software now implements the south african crs sacrs. The albers projection was introduced by heinrich c. Use the projection utility to do an albers projection procedure. However, arcgis offers the arctoolbox program, which makes projection simpler. As a reference on map projections, i like the esri book understanding map projections. Problems projecting from albers nad27 to wgs84 esri. Heres an example appropriate for the whole of south africa. Its first 30 pages are not unlike a short textbook, followed by 70. When i run the project raster tool, the false northing on the output raster changes from 4,000,000 what it should be per the.
Create a template feature dataset with the desired target coordinate system, then import to that template. One method to calculate the standard parallels is by determining the range in latitude in degrees north to south and dividing this range by six. Selecting map projections in minimizing area distortions in gis. Web mercator is the same projection you see when you use the location mapping software on your smartphone and online applications, so a lot of people are accustomed to seeing their location on web mercator. Get started learning about the fascinating and useful world of geographic information systems gis. Albershelp documentation arcgis desktop arcgis online. Although albers does not appear in the destination projection dropdown list, it is available as a custom projection. He didnt make the map projection for any other purpose. Information and installation scripts for the addition of usgs albers equal projections to common gis systems. For this projection, the maximum scale distortion for the 48 states is 1. Albers, is a conic, equal area map projection that uses two standard parallels.
Acquire projection files in the coordinate systems folder in arcgis for desktop 10. Changing some projections and datums using the arcview projection utility may require a two part process. I have land data stored as albers projection and i want it converted to lat, lon so i can display it on bing maps. What are the projection parameters for the routemap ims data packs. California teale albers or other projections in nad27 are still acceptable for gis use.
Lambert azimuthal equal areahelp arcgis for desktop. Could you explain the meaning of all these parameters. Spatial software like quantum gis or arcgis will figure it out for you. Details of the standard yukon albers projection and why albers is being. Utm and stateplane projections have zones that make it impossible to connect the different pieces of the state.
While traditional use of gis software has depended on standalone datasets. Bc environment standard projection bc environment gis working group has chosen a standard projection and datum for all spatial data stored in arc info. How can i project shape files to albers projections using the shape file projection utility. Projecting open data shapefile downloads arcgis blog.
In this project, you created a map and added data to it, symbolized and modified the data, performed analysis to answer a geographic question, and shared your results in the form of a printable map. This project has been only a taste of the functionality and capabilities of arcmap. Albers equalarea conic projection gis wiki the gis. Here are 3 methods to get your data into that projection. In the gillissen method the area is calculated based on albers equalarea projection by dividing part. Sites with this capability turned on, will provide their shapefile downloads in the same projection it was published in.
Which projection is best for mapping the contiguous united. The albers equal area conic is the typical projection for historical usgs maps of the lower 48, it being a generalpurpose lowdistortion compromise for midlatitude short and wide extents. Case study automating the selection of standard parallels for conic map projections bojan savrica,b,n, bernhard jennya,c a college of earth, ocean, and atmospheric sciences, oregon state university, corvallis, or, usa b esri inc. Supported map projections include transverse mercator, oblique mercator, mercator, gauss kruger, universal transverse mercator, oblique stereographic, polar stereographic, albers equal area, cassini, krovak, lambert conformal conic. Automating the selection of standard parallels for conic. Is the esri arcgis definition of california albers. Reproject the map optional m4cc brings online mapping into adobe illustrator, and as an online mapping software, the maps are projected in web mercator. The albers equalarea conic projection, or albers projection named after heinrich c. Degree i am trying to project my new files to match some old files and i have looked under every category. Working with map projections flattening the earth with map. Esri projection 102001 canada albers equal area conic home. Set data frame to desired projection, then export a layer to the data frame coordinate system interactive bulk. You dont have to pay a kings ransom to map the world.
Projections and arcgis flattening the earth with map. The arcgis coordinate system list also includes one labeled nad 1983 california teale albers us feet with wkid 102600, on the authority of esri. Esri projection 102003 usa contiguous albers equal area conic. Map projections can be conformal, equalarea and equidistant. Although neither shape nor linear scale is truly correct, the distortion of these properties is. This conic projection uses two standard parallels to reduce some of the distortion of a projection with one standard parallel. Albers equal area conic is a conic projection that preserves areas. The projection is albers equal area conic, with parameters of. Albers does a much better job of showing each state in proportion to all the others. Using sptransform, i reprojected a shp,in wgs 1984, to usgs projection.
Albers is a conic projection or cylindrical equal area would work. In the projected albers equal area frame the result is that square boxes of latitude longitude. For example, albers and lambert projections require the following parameters. When exporting to an esri shapefile from pahtfinder office, software is asking for an esri projection file. This is because you can do it all with free gis software. The instructions provided describe where to find the projection files located in the coordinate systems folder in arcgis for desktop 10. In the next release of arcgis open data targeted for night of july 16th, administrators will be given an option to enable local projections used for shapefiles. Units of feet are pretty common still in the us, so this projection sounds like a fine one i should use. Esri projection 102022 africa albers equal area conic home. The following article demonstrates how to convert the projection of a shapefile from albers hpgnharn florida meters to florida state plane east nad83 meters in the two necessary parts.
This gis stuff is using parts of my brain that have remained idle since high school, and some parts are working faster than others. Coordinate conversion software, map projections coordinate calculator, perform gps coordinate conversions between different geodetic datums and map projections. The wfdss custom albers projection is recognized by arcgis, and datasets stored in a wfdss custom albers projection can be used in arcmap like any other dataset. This creates an attractive consistency from a software engineering. But these reign supreme for free mapping software. Arcmap permits data to be viewed in various map projections. Albers map projection with standard parallels on the northern left map and southern right map hemisphere. These free gis software give you the firepower to get the job done as if youre working with commercial gis software. If you want to stick with transverse mercator, i would do a custom one with the central meridian at 117. Used for the conterminous united states, normally using 2930 and 4530 as the two standard parallels. North america and pick the canada albers equal area conic, that seems like. But when i examine the projections definition and parameters, theres something odd. Other fire behavior outputs can be downloaded in either the wfdss custom albers projection or in a geographic coordinate system.
Permanent conversion versus onthefly projection there are two ways to change the projection andor datum of a gis dataset. The albers equal area conic hpgn projection is one of the six projections used by the state of florida. But once you know a few of the rules, map projections are your key to. Geographic information systems stack exchange is a question and answer site for cartographers, geographers and gis professionals. I added the tag albers so if you search for albers in arcgis online youll find the basemap. Any software, documentation, andor data delivered hereunder is subject to the terms of the license agreement. Although neither shape nor linear scale is truly correct, the distortion of these properties is minimized in the region between the standard parallels. Esri projection 102007 hawaii albers equal area conic home. The albers projection is an equalarea conic projection.