In practice, airplanes often change their original course to avoid thunderclouds and resulting turbulence. Small clouds move at a height of about 3 km, while thunderclouds in areas with high solar radiation can reach a height of up to 14 km.įor comparison: when you go on vacation by airplane, you find yourself at an altitude of about 10 to 11 km. The height of clouds always depends on the strength of solar radiation and the amount of water vapor. You can then choose whether you want the cloud radar to display low, medium, or high clouds. To do this, simply click on the “Clouds” button at the top right of the map. You can find our rain radar with rain forecast here.īeyond general cloud cover, you can also filter by cloud type or height. While blue indicates weak precipitation, red/purple-colored areas are expected to have severe rain and hail. You can also recognize precipitation by a colored shading on the cloud cover map. In addition to information about cloud cover, our radar also tells you where cloud cover occurs in combination with precipitation. What else you need to know about our cloud cover map: Move the cloud marker with the mouse (smartphone: simply tap on the white dot of the marker using your finger) to your target region and find out how likely the sky will be cloudy there. This will tell you how the cloud cover will change over the next 36 hours. With the cursor at the bottom left of the cloud cover map, you can visualize the future course of the clouds. To do this, simply click on the corresponding button. You can distinguish between high, medium, and low clouds. Using the button at the top right of the cloud cover map, you can select the type of cloud cover. Conversely, a gray area indicates relatively light cloud cover with occasional sunshine. The chances of catching a glimpse of the sun in this area are therefore very poor. The whiter and clearer the coloration is, the denser the cloud cover is here. ![]() On our cloud cover map, cloud areas are displayed visibly for you by a gray-white coloring. Where is it cloudy? Where is the sun shining? This is how you read the cloud cover map: Gray color indicates light cloud cover, while a white color means heavy cloud cover. Date/s of access or download.In yellow-colored areas, the sun is shining. ![]() BirdCast, live migration map date and time (most easily accessible from image file name/s). To cite live migration map graphics, please use the following syntax:ĭokter, A. The BirdCast project was created by grants from the National Science Foundation and supported by additional grants from Leon Levy Foundation. Rose Postdoctoral Fellowship, and Amazon Web Services. ![]() Support for this research came from NASA, Edward W. The migration traffic rate indicates the number of birds per hour that fly across a one kilometer line transect on the earth’s surface oriented perpendicular to the direction of movement of the birds.Ĭornell Lab of Ornithology currently produces these maps. the Rockies) have obstructions that restrict radar coverage, providing the appearance of no migration where migration may be occurring.īrighter colors indicates a higher migration traffic rate (MTR) expressed in units birds/km/hour. Note that many radars in mountainous areas (e.g. Green dots represent radar locations for which data are available red dots represent radar locations with no data available. Orange arrows show directions to which birds flew. Areas with lighter colors experienced more intense bird migration. When present, the red line moving east to west represents the timing of local sunset, the yellow line represents the timing of local sunrise. All graphics are relative to the Eastern time zone. ![]() Real-time analysis maps show intensities of actual nocturnal bird migration as detected by the US weather surveillance radar network between local sunset to sunrise.
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