Even though the use of katha has become obscure as the usage of the metric system units became popular in India post the mid-20th century, locals in some northern and eastern states still use this term as a unit to refer to land area. 1 m is equivalent to 1.0936 yards, or 39.370 inches. Ideally, a three arc-second grid cell on the north edge of the Concrete sheet measures 60.75 meters along its north side and 92.60 meters along its east and west sides. To convert square meters to square feet, multiply the square meter value by 10.763910417. Among the many localized units used for land measurement in India is katha. Meters to Feet (m to ft) conversion calculator for Length conversions with.
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. 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. 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). Each degree is subdivided into 60 minutes. The Temple of Artemis is 377 feet (115 meters) long and 180 feet (55 meters) wide. The geographic reference system treats the globe as if it were a sphere divided into 360 equal parts called degrees. To convert from meters to feet, multiply the value in meters by 1250 then divide it by 381.
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.
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