The responsibility for providing maps, charts, digitized products, and precise geodetic coordinates typically falls to national mapping agencies or geospatial organizations. In the United States, for example, the U.S. Geological Survey (USGS) and the National Oceanic and Atmospheric Administration (NOAA) play key roles in these areas. Additionally, private companies and international organizations may also contribute to the creation and distribution of geospatial data and products.
Google Earth uses a "Simple Cylindrical projection," which is also known as Plate Carrée, with a World Geodetic System of 1984 (WGS84) datum.This is a simple map projection where the meridians and parallels are equidistant, straight lines, with the two sets crossing at right angles.Google Maps uses the Mercator projection also with the WGS84 dataum.The vertical component (altitude) is measured from the vertical datum, which is the Earth Gravitational Model 1996 (EGM96) Geoid. Altitudes are measured in meters.
Evidence supporting that Earth is neither shrinking nor growing includes the measurement of its mass and volume, which have remained relatively constant over geological time scales. Satellite measurements and geodetic techniques show that the planet's dimensions are stable, with only minor fluctuations due to tectonic activity. Additionally, the balance of incoming and outgoing matter, such as meteorite impacts and atmospheric escape, does not significantly alter Earth's overall size. These observations reinforce the understanding that Earth maintains a consistent size.
You read a weather map by looking at all the symbols. First look for the high and low pressure signs. They look like big H and a big L the H is red and the L is blue. Then look for the warm front and cold front symbols, the cold front is blue with triangles on the top a warm front is red with circles on the top. There might even be a purple design on the map which is a combination of a warm front and a cold front. Second look for stationary fronts, they are a pattern of a warm front and a cold front they indicate air masses in the same location are the precipitation symbols, the rain symbol and the snow symbol. The rain symbol looks like black dots and the snow symbols are black snow flakes. the are also freezing conditions and blowing snow, the freezing conditions look like a curvy line with a black dot under it and a black curvy line with a comma. The blowing snow symbol looks like two arrows intersecting. That is how to read a weather map.
The latitudes half way between the equator and poles are at 60 N & S At these latitudes the circumference is half of that at the equator. The Earth's circumference at the Equator is approx. 24,000 miles. At latitudes 60 N & S the circumference is 12,000 miles. At the poles N & S, latitude 90 N & S, the circumference is '0' (zero) ; a dot point. Taking an angular value for half way at 45 o N & S , the circumference is approximately 17,000 miles.
The responsibility for providing maps, charts, digitized products, and precise geodetic coordinates typically falls to national mapping agencies and geospatial organizations. In many countries, these tasks are handled by government institutions, such as the United States Geological Survey (USGS) in the U.S. or the Ordnance Survey in the UK. Additionally, private companies and research institutions may also contribute to the production and dissemination of geospatial data.
I have heard them called Map Coordinates and Geodetic Coordinates.
The National Geospatial-Intelligence Agency (NGA) provides mapping, charting, and geodetic support to the armed forces. It is responsible for providing intelligence on the Earth's natural and man-made features for military planning and operations.
To transform geodetic coordinates (latitude, longitude, height) to geocentric coordinates (x, y, z), you can use appropriate mathematical formulas or libraries. One common approach is to use the WGS84 ellipsoid model and apply the conversion formulas that account for the Earth's shape when transforming coordinates. Various software tools and programming libraries are available to perform this conversion accurately.
GPS uses a coordinate system called WGS84, which stands for World Geodetic System 1984. This system uses latitude and longitude coordinates to pinpoint locations on Earth with high accuracy.
Rudi Geodetic Point was created in 2006.
The reference point used to make all government maps is typically latitude and longitude coordinates from the Earth's surface. These coordinates provide a universal system for locating points on the Earth's surface with accuracy.
geodetic
The Global Positioning System (GPS) uses longitude and latitude coordinates to determine a location on Earth. Longitude measures east-west position, while latitude measures north-south position. These coordinates are expressed in degrees, minutes, and sometimes seconds.
A geodetic theodolite is a precise surveying instrument used to measure horizontal and vertical angles in geodetic surveying. It is designed for high-accuracy measurements required in geodetic surveying applications such as mapping, construction, and infrastructure development. Geodetic theodolites are typically equipped with electronic distance measurement capabilities for increased accuracy and efficiency.
Geodetic azimuth is when you measure in a Brunton compass from 0 to 360 degrees clockwise.
U.S. National Geodetic Survey was created in 1807.