What does a polar stereographic projection look like?
A polar stereographic projection focused on North America. Latitude lines appear as arcs of large circles, while longitude lines are straight, and converge at the North Pole. The arrow off the west coast of North America represents a westerly wind (the wind direction is 270 degrees).
How to save a GeoTIFF as a file?
It should automatically fill in the ‘Input Coordinate System’ and the ‘Output Raster Dataset’. If you would like to save this as a geoTIFF click the folder button next to the ‘Output Raster Dataset’ and select the folder you would like to save the geoTIFF in and input a new filename that includes the ‘.tif’ extension.
Why is Mercator projection better for tracking weather?
This type of projection minimizes distortion near the equator, which makes it better for tracking weather systems at low latitudes. The closer you are to the equator on a mercator projection, the more accurate the distance representation.
Where does the NSIDC Polar Stereographic grid take place?
NSIDC’s polar stereographic projection specifies a projection plane or grid tangent to the Earth’s surface at 70 degrees northern and southern latitude. This planar grid is designed so that the grid cells at 70 degrees latitude are exactly the nominal grid resolution.
How are lines of latitude in planar perspective projection?
Planar perspective projection, where one pole is viewed from the other pole. Lines of latitude are concentric circles. The distance between circles increases with distance from the central pole. A single point, either the North Pole or the South Pole. If the plane is secant instead of tangent, the point of global contact is a line of latitude.
What kind of projections are used in meteorology?
We’re going to focus on two common projections here: polar stereographic projections and mercator projections. On a polar stereographic projection, the observer’s perspective comes from looking down at either the north or south pole.