Alaska albers equal area conic After picking a predefined layout option, choose to apply a drop shadow effect and select a basemap for the map. Jul 27, 2017 · However, most of our working data is in Alaska Albers Equal Area Conic, and some users find WGS 1984 difficult to deal with in very high latitude areas (north slope) due to distortion. Snyder, USGS Professional Paper 1395. Returns: Jul 6, 2024 · Landsat ARD are generated in the Albers Equal Area Conic (AEA) for conterminous U. Sep 18, 2025 · Area: United States (USA) - Alaska. The projection is best suited for land masses extending in an east-to-west orientation at mid-latitudes. Feb 8, 2023 · I chose the Asia South Albers Equal Area Conic Projection (ESRI:102028) because I feel that it very much articulates a non-confusing version of the Philippines. In the first tile, display the US states over a map axes that uses a North America Albers Equal Area Conic projection. • East-West Zones (e. Deprecated! See EPSG:3338 instead. Share My Projection Collection: Compare Projections Albers vs. g. Meters or feet are used with projected coordinate systems, such as Alaska Albers Equal Area Conic. Parallels are unequally spaced arcs of concentric circles, more closely spaced at the north and south edges of the map. Alaska is generated in Alaska Albers map projection. Parameters: p - Location of point as an easting and northing in the Albers projection (metres from local origin). A conformal, conic map projection designed to preserve the relative sizes of areas on a map. Mar 13, 2023 · Hey Ariel, This is expected behavior with the predefined layouts. And for web mapping applications, the Web Mercator projection is the standard. Aug 23, 2024 · One common mistake I see is a north arrow on a smaller scale map (say the United States) in a Lambert Conformal Conic or Albers Equal Area map projection — on these types of map, north is only North along the central meridian (due to the convergence of the meridians toward the pole). Apr 14, 2023 · And this is Albers Equal Area for North America, ESRI:102008 (again at 1:50M): (The long USA-CAN border is now draped across a curve, showing that this is a conic projection. Alaska, Hawaii, and Puerto Rico features are transformed to appropriate coordinate systems for those areas, then shifted and optionally re-scaled before being assigned the 'ESRI:102003' CRS. Well suited for large countries or other areas that are mainly east-west in extent and that require equal-area representation. Apr 16, 2025 · Shift and rescale Alaska, Hawaii, and Puerto Rico in a US-wide sf object Description This function will shift and optionally rescale a US dataset for thematic mapping of Alaska, Hawaii, and Puerto Rico with respect to the continental United States. All supported map projections and their descriptions are listed. Directions: east, north. This projection is best suited for land masses extending in an east-to-west orientation rather than those Apr 6, 2015 · The Albers equal area conic is the typical projection for historical USGS maps of the lower 48, it being a general-purpose low-distortion compromise for mid-latitude short and wide extents. This is the same as the Lower 48 states. Equal-Area. S. The two most common conic projections in GIS are the Lambert Conformal and Albers Equal Area. Jul 6, 2024 · Landsat ARD are generated in the Albers Equal Area Conic (AEA) for conterminous U. It is especially suited for nations like the USA that are wider east/west than north/south. The $64,000 Question - Why do I need to know all this stuff? Alaska Albers Equal Area Conic Projection 0 200 400 600 800 1 inch = 800 miles 1,600 Miles Hawaii Albers Equal Area Conic Projection Mar 23, 2017 · You just changed the data frame's coordinate system to Alaska Albers Equal Area Conic, which is based on GCS_North_American_1983. Revision date: 2023-06-29 Apr 11, 2025 · Data Coordinate System: USA Contiguous Albers Equal Area Conic USGS version (contiguous US, Puerto Rico, US Virgin Islands), WGS 1984 Albers (Alaska), Hawaii Albers Equal Area Conic (Hawaii), Western Pacific Albers Equal Area Conic (Guam, Marshall Islands, Northern Marianas Islands, Palau, Federated States of Micronesia, and American Samoa) AlbersEqualArea ¶ class cartopy. Attributes Data source: ESRI Information source: ESRI Area of use: USA - CONUS - onshore Description: NAD 1983 USGS Contiguous USA Albers Albers Conic Equal Area ¶ This projection, developed by Heinrich C. Although neither shape nor linear scale is truly correct, the distortion of these properties is minimized in the region between the standard parallels. Oct 2, 2025 · It is a conic, equal-area projection, in which parallels are unequally spaced arcs of concentric circles, more closely spaced at the north and south edges of the map. Albers in 1805, is predominantly used to map regions of large east-west extent, in particular the United States. We'll use the Albers Equal Area Conic. Oct 19, 2021 · There are two variations on this projection, one is a Lambert Conformal Conic projection, the other is an Albers Equal Area. 在GIS中，要进行WGS1984到Albers_Conic_Equal_Area的投影转换，你可以使用以下步骤：1. Albers and is an equal-area projection. Map projection involves taking data whose spatial coordinates are defined in terms of latitude and longitude on a curved earth surface and transforming those data so that their spatial coordinates are defined in terms of Easting and Northing or (x, y) on a flat map surface. The Albers map projection is an equal area conic projection best suited for land masses extending in an east-to-west orientation at mid-latitudes. Axes: Easting, Northing (E,N). Now all files are seem to be projected and all overlap:) Jul 25, 2025 · 简介 阿尔贝斯等积圆锥投影法 （Albers Equal-Area Conic Projection）是一种能准确保持面积的 圆锥投影法，广泛应用于地理信息系统（GIS）和地图制图。 该投影法通过将地球表面包裹于圆锥体中，并将圆锥展开来绘制地图。 Area of use: USA - Alaska Description: NAD 1983 (CORS96) Alaska Albers However, this term reduces history to a narrow view of the written record dating from the time of the first Europeans who reached Alaska. On the Albers Equal Area Conic projection, the parallels near the northern and southern edges are closer together than the central parallels, and the projection displays equivalent areas. C. May 29, 2025 · 14. There is no distortion in scale or shape along two standard parallels, normally, or along just one. The Albers equal-area conic projection, or Albers projection, is a conic, equal area map projection that uses two standard parallels. However, when doing any other types of analysis, such as local analysis, one may need to adapt LF products. The United States in Albers Equal Area Projection The Albers Equal Area projection is a frequently used projection for US maps. Oracle Spatial Aug 3, 2007 · Description This conic projection uses two standard parallels to reduce some of the distortion of a projection with one standard parallel. Albers first introduced this map projection in 1805 with two standard parallels (secant). A handy list of all supported map projections and their descriptions We would like to show you a description here but the site won’t allow us. Horizontal Datum The North American Datum of 1983 (NAD83) and the World Geodetic Survey of 1984 (WGS84) are very similar on the horizontal plane. ng is equal on the standard parallels and decreases toward the poles. Albers Equal Area Conic projection is a conic projection that maintains accurate area measurements. Source · This is a U. For Using, click the drop-down arrow. Idaho) use Transverse Mercator • Alaska, Florida and New York use both projections, • Oblique Mercator is used for the Aleutian panhandle of Alaska (zone 5001) because it is neither predominantly north-south nor west-east • Good accuracy for local Canada Albers (or Lambert) Equal Area Conic Central Meridian: -96 Latitude Of Origin: 40 First Standard Parallel: 50 Second Standard Parallel: 70 Scale Larger Slightly Smaller Albers conic equal area（Albers 圆锥等面积投影）由 Heinrich C. Used by the USGS for maps showing the conterminous United States (48 states) or large areas of the United States. Dec 4, 2020 · The data are generated in the Albers Equal Area Conic (AEA) map projection for the conterminous U. Conic projections usually don't show the entire world; the projection outline is fan-shaped. If my study area is in between the -30° and - 35° parallels, what should be the standard parallels of my customized projection? Apr 28, 2015 · However, most of our working data is in Alaska Albers Equal Area Conic, and some users find WGS 1984 difficult to deal with in very high latitude areas (north slope) due to distortion. The Alaska Albers Equal Area Conic projection is the projection standard adopted by many state and federal agencies in Alaska for ease of data integration. This projection is best suited for land masses extending in an east-to-west orientation rather than those EPSG:2964 Projected coordinate system for United States (USA) - Alaska. Other projections, such as the Miller Cylindrical and the Van der Grinten, are chosen occasionally for convenience, sometimes making use of existing base maps prepared by others. Aug 22, 2013 · I am customizing the Albers equal conic area projection to my study region. ALBERS EQUAL-AREA CONIC PROJECTION SUMMARY Conic. 6 Projected Coordinate System Tables Note: Values may be rounded for display. 导入所需的数据：首先，你需要将需要转换的地理数据（如点、线或面）导入你的GIS软件中。 The United States in Albers Equal Area Projection The Albers Equal Area projection is a frequently used projection for US maps. For aeronautical charts or climatology studies, the Lambert Conformal Conic projection could be ideal. Pacific Islands – Western Pacific Albers Equal Area Conic, WGS 1984. Geological Survey Mapping Division, 1989, GRMC, University Libraries, Ball State University. and Hawaii. Below are instructions for adding these projections to your GIS. Replaces NAD83 (NSRS2007) / Conus Albers (CRS code 5072). -focused maps. Next, you will set the scale to all three data frames so that they match (this is important if you are to place a scale bar in the final map layout). ArcMap The Albers Equal Area Conic uses two standard parallels, or secant lines. For the record, the Wikipedia article on the Albers projection contains an illustration of a world map (and in the caption provides the necessary parameters, although these are not the only ones possible). Maps: A digital GIS shape file of the proposed permit area, in GIS Mapping Format (projected in Alaska Albers Equal Area Conic using either a NAD 1927 or a NAD 1983 horizontal datum) is preferred. Although scale and shape are not preserved, distortion is minimal between the standard parallels. In Geosoft GXF format it is known by the name "*Albers Equal-Area Conic" indicating that it isn't an EPSG projection. When panning the data frame containing an ArcGIS Online basemap and data projected in either Alaska Albers Equal Area Conic or Web Mercator, incorrect basemap tiles are returned at both the wrong location and scale. Feb 4, 2014 · This was instead of the tool Projections and Transformations>> Define Projection. However, the NAD83 Albers Equal-Area Conic Projection The Albers Equal-Area Conic projection is a map projection in which the parallels are unequally spaced arcs of concentric circles spaced closer to each other near the north and south edges of the map. Dec 20, 2018 · In the above map, the Albers Equal Area Conic projection was used to facilitate size comparisons between Canada's province of Ontario and the Germany. S Mar 1, 2023 · Introduction In 2004, wildlife and land managers conducted a prescribed burn in the vicinity of the Alphabet Hills and west fork of the Gulkana River (hereafter referred to as the “Alphabet Hills study area”) to improve habitat for moose (Alces alces) and other wildlife. (CONUS) and Hawaii. 0, standard_parallels= (20. Topographic mapping (small scale). 5 +lat_0=37. 5 +lon_0=-96 +x_0=0 +y_0=0 +datum=NAD83 +units=m +no_defs")) Full Code Here's the full script I used, including all of the projection arguments, shapefile and mapping data. More specifically, I used the Europe Albers Equal Area Conic projection for Germany as the standard parallels and meridians cross through the European continent, mitigating distortion. The Albers Equal Area Conic (top), Lambert Conformal Conic (center), and Equidistant Conic (bottom) are conic projections. and Hawaii map projection. Albers 于 1805 年提出， 主要用于绘制东西方向范围很大的地图，尤其是美国地图。 Dec 14, 2024 · 8. ARD are generated in the Albers Equal Area Conic (AEA) map projection for the conterminous U. The data includes FGDC Metadata, hydrologic enforcement, quality masks, and no more than 3% of void fill. The Albers Equal Area Conic projection is a popular choice, as it preserves area relationships, allowing for true size representation of landmasses. Lambert conformal conic Projection Selection Projection Informations Sep 23, 2025 · Features in the continental United States will have their CRS transformed to USA Contiguous Albers Equal Area Conic (’ESRI:102003’). It uses the Albers projection for the contiguous United States while insetting Alaska and Hawaii in the lower left corner to present all 50 states in a compact and visually coherent layout. Replaces NAD83(NSRS2007) / Alaska Albers (CRS code 3467). Description The Albers projection is an equal area conic projection. I know how to create a new projected coordinate system but I don't know the meaning and how to define the standard parallels 1 and 2. Conic Projections Conic projections involve projecting the Earth onto a cone, which can be particularly effective for regional maps. and American Samoa – Hawaii Albers Equal Area Coni Alaska – Alaska Albers Equal Area Conic, WGS 1984. Converts the given coordinates that use the Albers equal area conic projection into a (longitude,latitude) location. Draft data is for evaluation purposes only and is available in some areas of the state. Fish and Wildlife Service 4 days ago · Note The default convention is to interpret this value as decimal degrees. The USGS commonly uses the Albers Equal Area Conic projection because of how it proportionally represents areas for the conterminous United States. Completed sections of the state are available below. Select the desired coordinate system, Alaska_Albers_Equal_Area_Conic for the purpose of this tutorial, click Apply, then click OK (or just click OK which performs the Apply task and dismisses the dialog at the same time). UoM: metre. Used for many thematic maps. I'm trying to determine if an Albers Conic (Alaska Albers) is suitable as a projection for a corridor 800 miles long by 50 miles wide, that goes from the north coast of Alaska to the south coast. Developed in 1805 by German native H. U. I need to support survey grade accuracy in my GIS for the corridor, and Albers won't cut it I Aug 1, 1992 · Landsat ARD are generated in the Albers Equal Area Conic (AEA) for conterminous U. This is because they project each inset map and the main map's data into each area's appropriate coordinate systems (ie Alaska displays in Alaska Albers Equal Area Conic). Alaska is generated to Alaska Albers map projection. Describe the the transverse mercator projection (4). cal Miles Date: 3/27/2025 projection: Alaska Albers Equal Area Conic The and Limits hereon, as well as the between areas, are for iniöal only and not 'y full of u. ARC/INFO and ArcToolbox permit the transformation of data into new projected coordinate systems. 5 +lat_2=45. Features in the continental United States will have their CRS transformed to USA Contiguous Albers Equal Area Conic ('ESRI:102003'). Lambert equal-area conic projection, if the pole and another parallel are made the two standard parallels Lambert cylindric equal-area projection, if the equator is the single standard parallel. This map must show distances from nearby villages (b) Site Specific Location Map, showing the area requested for IHLC/TLUI clearance, including nearby existing development . AlbersEqualArea(central_longitude=0. -centric composite projection of three geoConicEqualArea projections: geoAlbers is used for the lower forty-eight states, and separate conic equal-area projections are used for Alaska and Hawaii. To specify radians instead, follow the value with the "r" character. Area of use values are in decimal degrees based upon WGS 1984. Texas) use Lambert Conformal Conic, North-South Zones (e. 0), globe=None)[source] ¶ An Albers Equal Area projection This projection is conic and equal-area, and is commonly used for maps of the conterminous United States. I have done a ton of research on the most accurate transformation to use in mainland Alaska to convert between the NAD83 and WGS84 datums, but I just can't seem to find a definitive answer. In the second tile, display the US states over a geographic axes, which uses a Web Mercator projection. 0, false_easting=0. This projection often serves as a compromise between Lambert conformal conic and Albers equal-area conic projections. All datasets have been processed and delivered in Alaska Albers Equal Area Conic (EPSG:3338), NAD83 horizontal datum and NAVD88 vertical datum. And I changed both data files to a completely different projection (Africa_Albers_Equal_Area_Conic). Although named after Rigobert Bonne (1727–1795), the projection was in use prior to his birth. EPSG:3338 Projected coordinate system for United States (USA) - Alaska. Domain: Albers Conical Equal Area" "Azimuthal Equidistant" "Equidistant Conic" "Equirectangular" "General Vertical Near-sided Projection" "Gnomonic" "Lambert Azimuthal Equal Area" "Lambert Conformal Conic" "Mercator" "Modified Stereographic for Alaska" "Miller Cylindrical" "Oblique Mercator" "Orthographic" "Polar Stereographic" "Polyconic Mar 13, 2025 · Latitude and longitude coordinates are used to express points within a geographic coordinate system, such as NAD27 or WGS84. crs. This projection is best suited for land masses extending in an east-to-west orientation rather than those Maps of the United StatesThis map shows the United States with Alaska in correct geographic position, rather than as an inset. 0, central_latitude=0. Apr 28, 2015 · Full resolution data is at 30 meters on an Alaska Albers Equal Area Conic projection with a NAD83 datum. 570796r See Projection Units for more information. 0, false_northing=0. Landsat C2 U. May 29, 2025 · One of the most commonly used projections for maps of the conterminous United States is the equal-area form of the conic projection, using two standard parallels. The meridians are equally spaced radii of the same circle, running at 90 degrees. Attributes Data source: ESRI Information source: ESRI Area of use: Canada Description: NAD 1983 Albers Canada Jun 29, 2023 · EPSG:9822 MethodData source: EPSG Information source: "Map Projections - A Working Manual" by John P. It has been used extensively for maps of Europe and Asia. Cones Albers Conic Equal-Area Equal Area are straight lines converging on the polar axis, but not at the Parallels are arcs of concentric circles concave toward a pole. This projection preserves the correct area of places, although it somewhat distorts the direction, distance and shape. -Matt Description The equidistant, or simple, conic projection preserves distances along all meridians and two standard parallels. First developed by Heinrich Christian Albers in the early nineteenth century for European maps, its biggest success has been for maps of North America—specifically, for maps for the conterminous United States. ArcGIS Pro 3. - pauldzy/USGS_Albers_Equal_Area_Projections Replaces NAD27 / Conus Albers (CRS code 5069). The Albers equal-area conic projection is particularly useful when mapping regions with significant variations in latitude, such as countries or continents, Mar 9, 2020 · A simple vector basemap in the USA Contiguous Albers Equal Area Conic projection. Nov 13, 2024 · Geographic coordinates are projected using the Alaska Albers Equal Area Conic projection for Region 10 (Alaska) and the North American Albers Equal Area Conic projection for the other 8 FS Regions. Like the projection I chose for Alaska, this projection of the Philippines does very well in depicting accurate distances and area of the islands. In our US layout, Alaska is displayed in Alaska Albers Equal Area Conic inside its own inset map, and the contiguous US is displayed in North America Albers Equal Area Conic in the main map area. The meridians are equally spaced and intersect the parallels at right angles. Albers Equal-Area Conic Projection The Albers Equal-Area Conic projection is a map projection in which the parallels are unequally spaced arcs of concentric circles spaced closer to each other near the north and south edges of the map. It differs from the Lambert Conformal Conic projection in preserving area rather than shape and in representing both poles as arcs rather than one pole as a single point. It also shows Canadian provinces and the Mexican States. Attributes Data source: ESRI Information source: ESRI Area of use: USA - Alaska Description: NAD 1983 Albers Alaska Jul 18, 2018 · The data are generated in the Albers Equal Area Conic (AEA) map projection for the conterminous U. To help determine the efects of the prescribed burn on forage availability for moose, the Alaska Center for Conservation Jul 30, 2016 · flexprojector Albers Equal Area Conic (Heinrich Albers, 1805): Like Lambert Conformal Conic, this is a very popular map projection for the US, Canada and other continental/large countries with a primarily E-W extent. The definition of this projection is: Datum: North American Datum of 1983 (NAD83) Ellipsoid: Geodetic Reference System of 1980 (GRS80) Map units: meters Central Meridian: 100°W Select the following predefined coordinate system: Projected Coordinate Systems >> Continental >> North America >> Alaska Albers Equal Area Conic Click OK to close the Data Frame Properties window. Alaska, Hawaii Equal-area projections, especially the Albers Equal-Area Conic, and equidistant projections which have correct scale along many lines appear in the National Atlas. This corridor spans 2 state plane zones (west to east). Alaska Albers Equal Area Conic Projection 0 200 400 600 800 1 inch = 800 miles 1,600 Miles Hawaii Albers Equal Area Conic Projection I'm trying to determine if an Albers Conic (Alaska Albers) is suitable as a projection for a corridor 800 miles long by 50 miles wide, that goes from the north coast of Alaska to the south coast. Both Lambert Conformal Conic (two parallels), and Albers Equal Area were tested statistically for distortion of area and distance. Operational Plants in o 2018 LOWER 48 STATES MAP - Scale North American Datum 1983 USA Contiguous Lambert Conformal Conic USGS Projection ALASKA MAP - Scale: North American Datum 1983 Alaska Albers Projection HAWAII MAP - Scale: North American Datum 1983 Hawaii Albers Equal Area Conic Projection 200 400 100 500 750 Km 1,000 Èederal Energy 200 AlaskaN Esri„ TomTom, Garmin, NOAA, USGS, EPA, USFWS Prudhoe Bay Cities Beaufort Sea Planning Area OCS Well Surface Locations OCS Wells with Petrophysical Analysis BOEM Beaufort Sea Planning Area BELCHER AURORA Nits) Miles Naut. Oct 24, 2018 · Contents Bonne Equidistant conic Lambert conformal conic Albers equal-area conic Lambert azimuthal equal-area Bonne The Bonne projection is a pseudoconical equal-area map projection. May 25, 2017 · Incorrectly named coordinate systems - Some CONUS NHDPlus HR raster file projections are incorrectly named NAD_1983_Albers, although the projection projection parameters within the file are correctly defined as USA Contiguous Albers Equal Area Conic USGS Version. Equal-area and equidistant projections appear in the National Atlas. Features include international and State boundaries and names; State capitals and major cities; and rivers and lakes. Poles are arcs of The Albers map projection is an equal area conic projection best suited for land masses extending in an east-to-west orientation at mid-latitudes. Albers Equal Area The Albers Equal Area projection, identified by EPSG:5070, is particularly useful for mapping datasets across the United States. Kwargs: Albers Equal Area Conic Map Projections map, Department of the Interior, U. For applications with an accuracy of better than 1m, replaced by NAD83 (HARN) / Conus Albers (CRS code 5071). Are there any other suggested solutions for speeding up redraw rates? What are 4 common map projections that are used in the US? Transverse Mercator, Lambert Conformal Conic, Albers Equal-Area Conic, and Lambert Equal-Area. For small areas, such as the Mediterranean Sea in the center of these images, they are visually almost identical. Example: +lat_2=1. ) And this is the USGS Contiguous US Albers Equal Area, EPSG:5070 (original at 1:50M): The cone of projection thereby becomes a plane. It is a conic, equal-area projection, in which parallels are unequally spaced arcs of concentric circles, more closely spaced at the north and south edges of the map. 0, 50. ArcMap permits data to The Albers equal-area conic projection, is a map projection that uses two standard parallels to reduce some of the distortion of a projection with one standard parallel. Meridians are equally spaced radii of the same circles, cutting parallels at right angles. Virgin Islands - USA Contiguous Albers Equal Area NAD 1983, using the WGS_1984_(ITRF00)_To transformation. LF native projection, USA Contiguous Albers Equal Area Conic (NAD_1983_CONUS_Albers or NAD_1983_Alaska_Albers), is perfect for larger area analysis, such as multiple states, etc. Albers USA is a customized adaptation of the standard Albers Equal Area Conic projection designed for U. H. Puerto Rico and U. They are processed directly from Level-1 AEA scenes through Level-2 products using the World Geodetic System 1984 (WGS84) datum. To preserve the look and feel of your web map and its settings such as the basemap and bookmarks, use custom mode to generate insets. To display a US map in geographic coordinates, do the following: Nov 9, 2023 · For regional studies and applications that span several states, the UTM or Albers Equal Area projections might be more appropriate. This coverage was projected into UTM, Lambert, Polyconic, and Albers. Data analysis and small scale data presentation for contiguous lower 48 states. It is often used in environmental studies and thematic mapping. Alaska, Hawaii, and Puerto Rico features are transformed to appropriate coordinate systems for those areas, then shifted and optionally re-scaled before being assigned the ’ESRI:102003’ CRS. Useful to show the United States in relation to Canada and Mexico. We would like to show you a description here but the site won’t allow us. Attributes Data source: ESRI Information source: ESRI Area of use: North America - Canada and USA (CONUS, Alaska mainland) Description: NAD 1983 Albers North America EPSG:6393 Projected coordinate system for United States (USA) - Alaska. Our suggestion is to consider your intended use. The 400 250 ENERGY I National Hydropower Map U. Parallels are concentric arcs of circles, not equally spaced. Returns: Pixel Quality Assessment (QA) (common and sensor-specific quality bands included) U. Jan 31, 2017 · I believe that you could apply the Alaska Albers Equal Area Conic (WKID 3338) to your data frame with or without the basemap and you would be using an equal area display, but I'm not sure this will address your visualization issue (especially at different zoom levels). ) Feb 27, 2025 · PostGIS: 32655 Adding Custom Coordinate Reference Systems Support for these Albers Equal-Area Conic projections in commercial and open source GIS software is limited as these projections have only slowly been registered with the EPSG Geodetic Parameter Dataset . mpa <- spTransform(state, CRS("+proj=aea +lat_1=29. Parallel spacing ecreases away from the standard parallels and increases betwe Albers Equal Area Conic (Albers) Used by the USGS for maps showing the conterminous United States or large areas of the United States. Mar 1, 2023 · Introduction In 2004, wildlife and land managers conducted a prescribed burn in the vicinity of the Alphabet Hills and west fork of the Gulkana River (hereafter referred to as the “Alphabet Hills study area”) to improve habitat for moose (Alces alces) and other wildlife. Nov 2, 2016 · Albers Equal Area Conic Projection # Albers Equal Area Conic us. Pseudoconic projections Pseudoconic projections are like conic projections in that their parallels are partial concentric circles. A polygon coverage of the entire province was created, composed of rectangular areas (The 1:20,000 BCGS mapsheet neatlines) in longitude/latitude. For larger scale maps, including topographic quadrangles and the State Base Map Series, conformal projections such as the Transverse Mercator and the Lambert Conformal Conic are used. Alaska is generated to the Alaska Albers map projection. Description This conic projection uses two standard parallels to reduce some of the distortion of a projection with one standard parallel. Alaska has been home to Native peoples for many thousands of years, and Native groups retain oral histories that stretch considerably beyond European contact. Landsat ARD products are generated in the Albers Equal-Area (AEA) Conic map projection, processed directly from Landsat Level-1 AEA scenes through the Landsat Level-2 product generation system using the World Geodetic System 1984 (WGS 84) datum. 0 100 200 300 600 0 25 50 100 150 200 Miles 1 inch = 600 miles 1 inch = 300 miles 1 inch = 200 miles Projections: Alaska Albers Equal Area Conic Hawaii Albers Equal Area Conic USA Contiguous Albers Equal Area Conic It is called a psuedo-cylindrical projection because it looks more like a cylindrical projection than a planar or conic projection. Meridians, on the other hand, are equally spaced radii about a common center, and cut the parallels at right angles. Alaska Albers Equal Area Conic Projection 0 200 400 600 800 1 inch = 800 miles 1,600 Miles Hawaii Albers Equal Area Conic Projection Information and installation scripts for the addition of USGS Albers Equal projections to common GIS systems. (See the status map above. It uses two standard parallels to reduce some of the distortion found in a projection with only one standard parallel. Longitude and latitude will be in decimal degrees with positive North and positive East. standard parallels. The Albers Equal-Area Conic projection is a map projection in which the parallels are unequally spaced arcs of concentric circles spaced closer to each other near the north and south edges of the map. (a) General Vicinity Map. Oct 21, 2008 · Description This conic projection uses two standard parallels to reduce some of the distortion of a projection with one standard parallel. Sep 24, 2022 · Figures Figure 1: Protected Wildlife Areas of Africa, using the Africa Albers Equal Area Conic projection Figure 2: The state of Alaska, using the NAD 27 | Alaska Albers projection Figure 3: Antarctica, using the WGS 84 | Antarctic Polar Stereographic projection Figure 4: The Philippines, using the Asia South Albers Equal Area Conic projection Features in the continental United States will have their CRS transformed to USA Contiguous Albers Equal Area Conic ('ESRI:102003'). This projection preserves area relationships, making it suitable for applications like land-use planning or resource management. The cone of projection thereby becomes a cylinder.