ÿþ<html> <head> <title> City Lights Space World Map </title> <META NAME="Description" CONTENT="City Lights Space World Map"> <META NAME="Keywords" CONTENT="City Lights, Space, World Map"> <style type="text/css"> A:link { text-decoration: none; color:#000066; } A:visited { text-decoration: none; color:#000066; } A:active { text-decoration: none; color:#000066; } A:hover { text-decoration: none; color:#990033; } a { text-decoration: none} </style> </head> <body topmargin="0" leftmargin="0" bgcolor="white"> <table background="images/drugsbgr.gif"><tr><td> <table background="images/drugsbgr.gif" width="972" align="top"><tr><td colspan="2" width="972"> <font face="arial"> | <a href="http://www.photius.com/rankings" target="_blank">COUNTRY RANKS</a> | <a href="http://www.theodora.com/wfb" target="_blank">GEOGRAPHY</a> | <a href="http://www.theodora.com/geology" target="_blank">GEOLOGY</a> | <a href="http://www.allcountries.org/uscensus/" target="_blank">USA STATISTICS</a> | <a 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target="_blank"><b>GEOGRAPHICAL NAMES</b></a> <br><br></td><td valign="top"> <a href="http://translate.google.com/translate?u=http://www.geographic.org/maps/new2/city_lights_space_world_map.html &sl=en&tl=es&ie=UTF-8&oe=UTF-8" target="_blank"><img border ="0" src="http://www.theodora.com/images/spanish_translate.gif" alt="Spanish" valign="top"></a> <a href="http://translate.google.com/translate?u=http://www.geographic.org/maps/new2/city_lights_space_world_map.html &sl=en&tl=zh-CN&ie=UTF-8&oe=UTF-8" target="_blank"><img border ="0" src="http://www.theodora.com/images/chinese_translate.gif" alt="Simplified Chinese"></a> <a href="http://translate.google.com/translate?u=http://www.geographic.org/maps/new2/city_lights_space_world_map.html &sl=en&tl=fr&ie=UTF-8&oe=UTF-8" target="_blank"><img border ="0" src="http://www.theodora.com/images/french_translate.gif" alt="French"></a> <a 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src="http://www.theodora.com/images/arabic_translate.gif" alt="Arabic"></a> <a href="http://translate.google.com/translate?u=http://www.geographic.org/maps/new2/city_lights_space_world_map.html &sl=en&tl=pt&ie=UTF-8&oe=UTF-8" target="_blank"><img border ="0" src="http://www.theodora.com/images/portuguese_translate.gif" alt="Portuguese"></a> </td></tr> </table> <hr> Click on the thumbnail image below for a full-size version, or click on the sectional images or thumbnails of continents to see larger versions of those sections. <br><br> <a href="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa-t.jpg" alt="Click here to see a full size image of City Lights Space World Map"></a> <br><br> Click on a section of the image below for a full-size version of that sections. <br><br> <table CELLSPACING=0, CELLPADDING=0 background="light_blue.jpg"> <tr valign="bottom"> <td> <a href="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_a1.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_a1-t.jpg" border="0" alt="Click here to see a full size image of this section of the City Lights Space World Map"></a> </td> <td> <a href="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_a2.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_a2-t.jpg" border="0 alt="Click here to see a full size image of this section of the City Lights Space World Map"></a> </td> <td> <a href="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_a3.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_a3-t.jpg" border="0 alt="Click here to see a full size image of this section of the City Lights Space World Map"></a> </td> </tr> <tr VALIGN="top"> <td> <a href="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_b1.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_b1-t.jpg" border="0 alt="Click here to see a full size image of this section of the City Lights Space World Map"></a> </td> <td> <a href="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_b2.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_b2-t.jpg" border="0 alt="Click here to see a full size image of this section of the City Lights Space World Map"></a> </td> <td> <a href="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_b3.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_map_nasa_b3-t.jpg" border="0 alt="Click here to see a full size image of this section of the City Lights Space World Map"></a> </td> </tr> </table> <br><br> Click on a thumbnail image below for a full-size version of that image. <br><br> <a href="http://www.theodora.com/maps/world/city_lights_from_space_americas_map_nasa.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_americas_map_nasa-t.jpg" border="0" alt="Click here to see a full size image of City Lights Space World Map"></a> <a href="http://www.theodora.com/maps/world/city_lights_from_space_emea_map_nasa.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_emea_map_nasa-t.jpg" border="0" alt="Click here to see a full size image of City Lights Space World Map"></a> <a href="http://www.theodora.com/maps/world/city_lights_from_space_asia_pacific_map_nasa.jpg"><img src="http://www.theodora.com/maps/world/city_lights_from_space_asia_pacific_map_nasa-t.jpg" border="0" alt="Click here to see a full size image of City Lights Space World Map"></a> <br><br> </center> </font> This image of Earth s city lights was created with data from the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS). Originally designed to view clouds by moonlight, the OLS is also used to map the locations of permanent lights on the Earth s surface. <br><br> The brightest areas of the Earth are the most urbanized, but not necessarily the most populated. (Compare western Europe with China and India.) Cities tend to grow along coastlines and transportation networks. Even without the underlying map, the outlines of many continents would still be visible. The United States interstate highway system appears as a lattice connecting the brighter dots of city centers. In Russia, the Trans-Siberian railroad is a thin line stretching from Moscow through the center of Asia to Vladivostok. The Nile River, from the Aswan Dam to the Mediterranean Sea, is another bright thread through an otherwise dark region. <br><br> Even more than 100 years after the invention of the electric light, some regions remain thinly populated and unlit. Antarctica is entirely dark. The interior jungles of Africa and South America are mostly dark, but lights are beginning to appear there. Deserts in Africa, Arabia, Australia, Mongolia, and the United States are poorly lit as well (except along the coast), along with the boreal forests of Canada and Russia, and the great mountains of the Himalaya. <br><br> NASA scientists use city light data to map urbanization. </font> <p> </td> <td width=200 valign="top" align="middle" background="images/drugsbgr.gif"> <script type="text/javascript"><!-- google_ad_client = "pub-7437757543052749"; //200x200, created 1/29/08 google_ad_slot = "3788218132"; google_ad_width = 200; google_ad_height = 200; google_ad_region = "test"; //--></script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> <br><br> <script type="text/javascript"><!-- google_ad_client = "pub-7437757543052749"; //200x200created 1/29/08 google_ad_slot = "9108209763"; google_ad_width = 200; google_ad_height = 200; google_ad_region = "test"; //--></script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> <hr> <br><br> <script type="text/javascript"><!-- google_ad_client = "pub-7437757543052749"; google_ad_width = 200; google_ad_height = 90; google_ad_format = "200x90_0ads_al"; //2007-05-25: Drugs Link Unit google_ad_channel = "7897034790"; google_color_border = "6699ff"; google_color_bg = "99ccff"; google_color_link = "000033"; google_color_text = "000000"; google_color_url = "FF6600"; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> </table> </td></tr> <tr><td> </td></tr><tr><td> <center> <hr> <img src="http://www.theodora.com/images/bookmark_banner.gif" align="left" width="176" height="52" border="0"> <font color=brown> - Please bookmark this page (add it to your favorites). <br> - If you wish to <b>link</b> to this page, you can do so by referring to the URL address below this line.</font> <hr> <font size = "-1"> http://www.geographic.org/maps/new2/city_lights_space_world_map.html </font> <br><br> This page was last modified 12-DEC-10 <br> Copyright &copy 2010 <a href="http://www.theodora.com/ita.html">ITA</a> all rights reserved. <br> </center> </td></tr></table> </font> </td></tr></table> </body> </html>