Sentences with phrase «radar observations showed»
In 1965, however, radar observations showed conclusively that the planet's rotational period was about 59 days.
http://www.newworldencyclopedia.org/ Not exact matches
However radar observations have shown that lakes cover only a few per cent of the surface and are concentrated near the poles, making Titan much drier than Earth.
There is also some unconfirmed evidence of recent volcanism on Mercury, and radar observations of Mercury's north pole show evidence of water ice in the protected shadows of some craters.
Recently, truck - borne Doppler radar observations of tornadoes (readers who watch tornado TV shows would be familiar with such devices) have identified a number of cases in which the radar - measured winds are considerably faster than the official NWS rating implies.
Microwave radars of the European Remote - Sensing Satellites (ERS), radiometers of the Defense Meteorological Satellite Program (DMSP) and the dual - frequency altimeter TOPEX - POSEIDON have shown their ability to improve the description and location of storms, especially in the case of tropical cyclones for which very few traditional observations exist.
A comparison to observations (gauge and radar data) shows that the high - resolution (3 km) model generates better rainfall distributions on time scales from monthly to hourly than the coarse - resolution (9 km) model, especially along the west slopes of the Sierra Madre Occidental.
Satellites track Antarctic ice loss over decades02 May 2017 Over two decades of observations by five radar satellites show the acceleration of ice loss of 30 glaciers in Western Palmer Land in the southwest Antarctic Peninsula.