What is GARS grid?
The Global Area Reference System (GARS) is a standardized geospatial reference system developed by the National Geospatial-Intelligence Agency (NGA) for use across the United States Department of Defense.
How big are Gars boxes?
GARS divides the world into 30-minute by 30-minute cells, about 900 square nautical miles at the equator, diminishing in size at higher and lower latitudes. Each cell is subdivided into four 15-minute by 15-minute quadrants.
What is the global referencing system?
The World Geographic Reference System (GEOREF) is a geocode, a grid-based method of specifying locations on the surface of the Earth. GEOREF is essentially based on the geographic system of latitude and longitude, but using a simpler and more flexible notation.
What are the two reference points for locating places on the earth?
However, the end points of the imaginary axis of the earth on which it rotates, provide us two basic points of reference. These end points of the earth’s axis are called North Pole and South Pole. These are the fixed points on the earth.
What datum does MGRS use?
WGS84
In the AA scheme, also known as MGRS-New, which is used for WGS84 and some other modern geodetic datums, the letter for the first row – just north of the equator – is A in odd-numbered zones, and F in even-numbered zones, as shown in figure 1.
Where are the exact places on Earth?
Any point on earth can be located by specifying its latitude and longitude, including Washington, DC, which is pictured here. Lines of latitude and longitude form an imaginary global grid system, shown in Fig. 1.17. Any point on the globe can be located exactly by specifying its latitude and longitude.
What is the Earth grid How does it help in locating places?
Because the ‘grid’ is a known series of lines, longtitude and latitude that precisely indicate where a specific spot is located on the earth. All places along the 49th parallel are the same distance from the equator, and if you give the east west reference you know exactly where that place is on the globe….
What is the gars system?
NGA has developed a global reference system for battle-space decon.iction in response to a tasking by the Secretary of Defense. The Global Area Reference System (GARS) is the .rst to provide a worldwide standard for Department of Defense mission plan-ning and operations.
What is the predecessor to gars?
The predecessor to GARS was the Common Geographic Reference System (CGRS). Around the world numerous CGRSes were being used in the .eld, all with their own scheme and not compatible with each other. The most noteworthy one was developed for Operation Iraqi Freedom by commanders and support personnel in Iraq.
What is a grid reference system (gars)?
In the armed forces, grid reference systems have historically been developed and used for battle-space deconfliction. Proven reference grids are in use in Afghanistan, Iraq and South Korea. The predecessor to GARS was the Common Geographic Reference System (CGRS).
What does CGRS do for refugees?
With strategic focus and unparalleled legal expertise, CGRS champions the most challenging cases, fights for due process, and promotes policies that deliver safety and justice for refugees. CGRS undertakes strategic litigation to advance sound asylum laws and protect due process rights.