At 49 degrees north latitude, along the northern boundary of the Concrete sheet, an arc-second of longitude equals 30.87 meters * 0.6561 (cos 49°) or 20.250 meters. UploadVR confirmed with Facebook that from Quest system software v30, people should be able to draw Guardian boundaries up to 15 meters long in either direction. Arc-seconds of latitude remain nearly constant, while arc-seconds of longitude decrease in a trigonometric cosine-based fashion as one moves toward the earth's poles.
#15 meter to feet how to
How to convert from Square Meters to Square Feet The conversion factor from Square Meters to Square Feet is 10.76391041671. Said differently, an arc-second represents the distance of latitude or longitude traversed on the earth's surface while traveling one second (1/3600th of a degree).Īt the equator, an arc-second of longitude approximately equals an arc-second of latitude, which is 1/60th of a nautical mile (or 101.27 feet or 30.87 meters). 15 Square Meters is equivalent to 161.45865625065 Square Feet. Example: convert 15 m Square Centimeter to Square Meter Conversion Example. Each degree is subdivided into 60 minutes. If we want to calculate how many Feet are 2.15 Meters we have to multiply 2.15 by 1250 and divide the product by 381. The geographic reference system treats the globe as if it were a sphere divided into 360 equal parts called degrees. Some USGS DEM data is stored in a format that utilizes three, five, or 30 arc-seconds of longitude and latitude to register cell values.