مصادر الصور
جميع الصور المعروضة على صفحات سيوس الألكترونية مستخدمة مع إذن صريح من المؤلفين.
ولا يجوز تحميلها دون إذن مسبق من المؤلفين! - أنظر أيضا للتنويه
مصادر صور الأقمار الصناعية
Western Europe (28-29/04/08).
Sensor: SEVIRI/Meteosat-9, airmass product
Source: EUMETSAT
URL: http://oiswww.eumetsat.org/IPPS/html/DerivedProducts/MSG2/
AIRMASS/CENTRALEUROPE/index.htm
Last access: 18.06.2008
Hurricane Charley (13/08/04).
Sensor: SeaWiFS/Orbview-2
Source: Oceancolor/GSFC/NASA.
URL: http://oceancolor.gsfc.nasa.gov/cgi/image_archive.cgi?c=STORMS
Last access: 18.06.2008
Smoke and smog over Indonesia (22/10/97).
Sensor: TOMS Earth-probe
Source: NASA/GSFC
URL: http://www.gsfc.nasa.gov/topstory/20010315ozone.html
Last access: 18.06.2008
Ozone hole development (01/07/07 - 07/12/07).
Sensor: OMI/Aura
Source: NASA
URL: http://ozonewatch.gsfc.nasa.gov/index.html
Last access: 18.06.2008
Monthly average mid-tropospheric CO2 (July 2003).
Sensor: AIRS/Aqua
Source: NASA/JPL
URL: http://photojournal.jpl.nasa.gov/catalog/PIA09269
Last access: 18.06.2008
Height of the ocean surface (Nov.97 and Feb.99).
Sensor: TOPEX/POSEIDON and Jason 1
Source: NASA/JPL
URL: http://www.windows.ucar.edu/tour/link=/earth/climate/enso.html
Last access: 18.12.2008
Lena Delta, Russia (27/07/00).
Sensor: Landsat 7
Source: NASA/JPL
URL: http://earthasart.gsfc.nasa.gov/lena.html
Last access: 18.06.2008
Monthly global images (2004).
Sensor: MODIS/Terra
Source: Reto Stockli, NASA Earth Observatory
URL: http://earthobservatory.nasa.gov/Newsroom/BlueMarble/
BlueMarble_monthlies.html
Last access: 18.12.2008
Global land cover of Africa (2000).
Sensor: Vegetation/Spot 4
Source: Global Land Cover 2000 database, European Commission, Joint Research Centre, 2003
URL: http://www-tem.jrc.it/glc2000/interactive/glc2000_vgt.html
Last access: 03.09.2008
Lake Ichkeul, Tunisia (14/11/01 and 29/07/05).
Sensor: ASTER/Terra
Source: NASA/GSFC/METI/ERSDAC/JAROS, and the U.S./Japan ASTER Science Team
URL: http://earthobservatory.nasa.gov/Newsroom/NewImages/
images.php3?img_id=17159
Last access: 18.06.2008
Tungurahua Volcano, Ecuador (16/10/06).
Sensor: ASTER/Terra
Source: Nick Smith and Matt Patrick, Michigan Tech University; and Patricia Mothes, Instituto Geofísico, Escuela Politécnica Nacional
URL: http://earthobservatory.nasa.gov/Newsroom/NewImages/
images.php3?img_id=17493
Last access: 18.06.2008
Namib desert, Namibia (8/12/00).
Sensor: ETM+/Landsat 7
Source: USGS National Center for EROS and NASA Landsat Project Science Office
URL: http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=10766
Last access: 18.06.2008
Deforestation in Bolivia (08/01/00).
Sensor: ETM+/Landsat 7
Source: USGS EROS Data Center Satellite Systems Branch
URL: http://earthobservatory.nasa.gov/Newsroom/NewImages/
images.php3?img_id=8260
Last access: 18.06.2008
Escondida mine, Chile (23/04/00).
Sensor: ASTER/Terra
Source: NASA/GSFC/METI/ERSDAC/JAROS and the U.S./Japan ASTER Science Team
URL: http://earthobservatory.nasa.gov/Newsroom/NewImages/
images.php3?img_id=4492
Last access: 18.06.2008
Global biosphere and CO2.
Sensor: SEaWiFs and ground data.
Source: GSFC/NASA, SeaWiFS Project, GeoEye.
URL: http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003309/index.html
Last access: 18.12.2008
Richat Structure, Mauritania.
Sensor: Landsat (13/01/87) and Shuttle Radar Topography Mission (SRTM) data (01/02/00).
Source: SRTM Team NASA/JPL/NIMA.
URL: http://earthobservatory.nasa.gov/IOTD/view.php?id=4602
Last access: 14.01.2007
Bangladesh coastline (08/11/03).
Sensor: MERIS/Envisat
Source: ESA
URL: http://www.esa.int/esaEO/SEMB7HD3M5E_index_0.html
Last access: 01.07.2008
Atoll in the Pacific Ocean (23/09/01).
Sensor: IKONOS
Source: GeoEye
URL: http://www.geoeye.com/gallery/ioweek/archive/01-09-23/index.htm
Last access: 18.06.2008
Gulf Stream, Atlantic Ocean (27/05/07).
Sensor: MODIS/Terra
Source: SSEC EOS Direct Broadcast
URL:
http://eosweb.ssec.wisc.edu/browse_images/terra/2007/147/
2007-05-27_0246-0257_GSTR_31_1KM.jpg
Last access: 06.11.2009
White river, USA (14/04/06 and 07/04/08).
Sensor: ASTER/Terra
Source: NASA image created by Jesse Allen, using data provided courtesy of NASA/GSFC/METI/ERSDAC/JAROS and U.S./Japan ASTER Science Team
URL: http://earthobservatory.nasa.gov/Newsroom/NewImages/
images.php3?img_id=18011
Last access: 01.07.2008
Wilkins shelf disintegration, Antartica (08/03/08).
Sensor: Formosat-2
Source: Dr. Cheng-Chien Liu, National Cheng-Kung University and Dr. An-Ming Wu, National Space Organization, Taiwan
URL: http://earthobservatory.nasa.gov/Newsroom/NewImages/
images.php3?img_id=17978
Last access: 01.07.2008
Oil spill in La Coruña, Spain (13/12/92 and 2/01/93).
Sensor: SAR/ERS-1
Source: ESA
URL: http://esamultimedia.esa.int/images/EarthObservation/corv_256.jpg
Last access: 01.07.2008
Bay of Bisquay, Atlantic (17/05/04).
Sensor: MERIS/Envisat
Source: ESA
URL: http://earth.esa.int/cgi-bin/satimgsql.pl?ids=472,4
Last access: 01.07.2008
Upwelling along the Sahara (22/03/02).
Sensor: MERIS/Envisat
Source: ESA
URL: http://www.esa.int/esaEO/ESACGIF18ZC_index_1.html
Last access: 18.12.2008
Durrat al Bahrain, Bahrain (01/04/07).
Sensor: KOMPSAT-2
Source: KARI 2007, Distribution Spot Image
URL: http://www.spotimage.fr/web/62-galerie.php?continent=6
Last access: 01.07.2008
San Francisco, USA (17/12/01)
Sensor: Quickbird
Source: DigitalGlobe
URL: http://www.mapwindows.com/Free/FreeImage/RSImage/
San_Franciscoinfo.htm
Last access: 01.07.2008
Kansas' fields, USA (24/06/01)
Sensor: ASTER/Terra
Source: NASA/GSFC/METI/ERSDAC/JAROS and the U.S./Japan ASTER Science Team
URL: http://asterweb.jpl.nasa.gov/gallery-detail.asp?name=circles
Last access: 01.07.2008
Vegetation vigour.
Sensor: Quickbird data
Source: DigitalGlobe
URL: http://www.satimagingcorp.com/svc/land_cover_and_change_detection.html
Last access: 01.07.2008
Nazca lines, Peru (10/11/02).
Sensor: ETM+/Landsat 7
Source: Landsat USGS gallery
URL: http://landsat.usgs.gov/gallery.php
Last access: 01.07.2008
Low pressure system over Iceland (04/09/03).
Sensor: Aqua/MODIS
Source: Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
URL: http://visibleearth.nasa.gov/view_rec.php?id=6204
Last access: 17.12.2008
Typhoon Jelawat near the island of Minami Daito Jima, Japan (07/08/00).
Sensor: SEaWIFS
Source: SeaWiFS Project, NASA/GSFC and ORBIMAGE
URL: http://visibleearth.nasa.gov/view_rec.php?id=713
Last access: 01.07.2008
Development of Hurricane Isabel (September 2003).
Sensor: Meteosat-8
Source: EUMETSAT
URL: http://oiswww.eumetsat.org/WEBOPS/iotm/iotm/
20030908_hurricane/20030908_hurricane.html
Last access: 17.12.2008
Hurricane Katrina (28/08/05).
Sensor: MODIS/Terra
Source: MODIS Rapid Response Team, GSFC/NASA
URL: http://earthobservatory.nasa.gov/
images/imagerecords/15000/15395/Katrina2_TMO_2005240_lrg.jpg
Last access: 17.12.2008
Rio de Janeiro Port, Brasil (20/04/02).
Sensor: IKONOS
Source: © 2007 GeoEye
URL: http://www.satimagingcorp.com/gallery-ikonos.html
Last access: 03.07.2008
Dust storm over China (07/04/01).
Sensor: Vegetation/SPOT 4
Source: Vegetation programme, VITO
URL: http://www.vgt.vito.be/AShtml/c34_07042001_china.htm
Last access: 03.07.2008
Niau atoll, one of nearly 80 coral reef atolls forming the Tuamotu Archipelago in French Polynesia (06/10/05).
Sensor: Proba
Source: SSTL through ESA
URL: http://earth.esa.int/cgi-bin/satimgsql.pl?pf=1273
Last access: 04.07.2008
Floods in the Irrawaddy delta caused by the cyclone Nargis that hit Myanmar (03/05/08).
Sensor: ASAR/Envisat
Source: ESA
URL: http://www.esa.int/esaEO/SEMV0TZXUFF_environment_0.html
Last access: 04.07.2008
Man-made islands located just off the coast of Dubai in the United Arab Emirates: Palm Jumeirah and The World (05/11/07).
Sensor: Proba
Source: N. Sullivan/SSTL through ESA
URL: http://earth.esa.int/cgi-bin/satimgsql.pl?pf=1799
Last access: 04.07.2008
Center-pivot irrigation in Railroad Valley, Nevada, USA (17/08/01).
Sensor: ASTER/Terra
Source: NASA/GSFC/MITI/ERSDAC/JAROS and U.S./Japan ASTER Science Team
URL: http://earthobservatory.nasa.gov/IOTD/view.php?id=1806
Last access: 18.02.2009
Lines and geoglyphs of Nazca in a Landsat-7 image (30 m resolution, 26/04/00) with details of a QuickBird image (0.6 m resoltuion, 16/09/02).
Sensor: ETM+/Landsat 7 and Quickbird
Source: Tokai University Research & Information Center, Japan
URL: http://www.tric.u-tokai.ac.jp/isite/sarchaeology/enazca.html
Last access: 04.07.2008
Cloud formation over Europe.
Sensor: Meteosat
Source: EUMETSAT 2008
URL: See Module 6
Last access: 03.02.2009
Fires raging across north-western Spain and Portugal (09/08/06).
Sensor: Envisat
Source: ESA
URL: http://earth.esa.int/cgi-bin/satimgsql.pl?ids=1477
Last access: 03.02.2009
Lake Chad in Africa in 1972 and then later in October 2001.
Sensor: not communicated
Source: UNEP/GRID-Sioux Falls
URL: http://na.unep.net/AfricaLakes/site_images.html
Last access: 03.02.2009
Great zoom into the Amazon, Brazil.
Sensor: MODIS/Terra, ETM+/Landsat 7 and IKONOS data
Source: NASA/GSFC/Scientific Visualization Studio
URL: http://svs.gsfc.nasa.gov/vis/a000000/a002500/a002550/index.html
Last access: 03.02.2009
Dust storm in Northern Africa (01/03/05).
Sensor: MODIS/Aqua
Source: NASA/GSFC/MODIS Rapid Response Team, Jacques Descloitres
URL: http://visibleearth.nasa.gov/view_rec.php?id=6567
Last access: 03.02.2009
Deforestation in Mato Grosso, Brazil, between 2002 and 2006.
Sensor: MODIS/Terra
Source: NASA/GSFC/MODIS Rapid Response Team, Robert Simmon
URL: http://earthobservatory.nasa.gov/IOTD/view.php?id=6811
Last access: 03.02.2009
The apparent displacement of the building caused by the change of observation point is the parallax.
Sensor: SPOT
Source: Gent University, Belgium
URL: See Module 10
Last access: 03.02.2009
Suspended Particulate Matter (SPM) map.
Sensor: SeaWIFS
Source: Institute for Environmental Studies (VU-IVM)
URL: See Module 7
Last access: 03.02.2009
Identification of stressed vegetation.
Sensor: Aviris data
Source: USGS
URL: http://speclab.cr.usgs.gov/PAPERS.veg1/vegispc2.html
Last access: 03.02.2009
Chichen Itza, Mexico (05/03/01).
Sensor: IKONOS
Source: GeoEye © 2006 Satellite Imaging Corporation
URL: http://news.satimagingcorp.com/2007/
07/satellite_images_of_seven_wonders_of_the_world.html
Last access: 03.02.2009
مصادر الصور الأخرى
The climate zones of the world.
Source: www.wikimedia.org
URL: http://en.wikipedia.org/wiki/File:ClimateMapWorld.png
Last access: 17.12.2008
The Orbview-2 satellite.
Photo: Orbital Sciences Corporation
URL: http://www.orbital.com/images/Low/ov2_low.jpg
Last access: 01.07.2008
Damage from Hurricane Charley on Captiva Island, Florida.
Photo: NOAA/Tampa Bay National Weather Service
URL: http://en.wikipedia.org/
wiki/Image:Hurricane_Charley_Captiva_Damage.jpg
Last access: 06.08.2008
Damage caused to a gas station in Kissimmee, Florida, by Hurricane Charley.
Photo: Wikipedia
URL: http://en.wikipedia.org/wiki/Image:CharleyDamageInOrlando.jpg
Last access: 06.08.2008
Arrival of hurricane Katrina in Mississipi.
Photo: Anonymous
URL: http://lh3.ggpht.com/_wwXBhk41cZc/RkdbB4BI4KI/AAAAAAAAANA/
cGOEkJoGwfM/Katrina1.jpg
Last access: 17.12.2008
Burning the rain forest to clear land for oil palm tree in Sumatra, Indonesia.
Photo: © WWF-Canon/Mark Edwards
URL: http://www.panda.org/about_wwf/where_we_work/asia_pacific/
where/indonesia//environmental_problems_indonesia/index.cfm
Last access: 01.07.2008
TOMS-Earth Probe.
Photo: NASA
URL: http://library01.gsfc.nasa.gov/cgi-bin/gdprojs/searchAlpha.pl?letter=T
Last access: 03.07.2008
The Lidar at Davis station helps us to study ozone.
Photo: © M.Lambert/Australia Antartic Division Australia Antartic Division
URL: http://www.classroom.antarctica.gov.au/6-climate/6-5-ozone-depletion
Last access: 01.09.2009
On the trail of the missing ozone.
Source: EPA's Region 9 Office in San Francisco, California
URL: http://www.epa.gov/ozone/science/missoz/index.html
Last access: 01.07.2008
Dobson unit scale.
Source: Eumetsat/DLR
URL: http://wdc.dlr.de/sensors/gome2/
Last access: 01.07.2008
The Aqua satellite is part of the "A-Train" which consists of five satellites flying in formation around the globe.
Source: NASA
URL: http://www-calipso.larc.nasa.gov/about/atrain.php
Last access: 03.07.2008
Aqua was launched aboard a Delta 7920-10L rocket at 2:55 a.m. PDT on May 4, 2002.
Photo: NASA/Bill Ingalls
URL: http://earthobservatory.nasa.gov/Library/Aqua/Aqua3.html
Last access: 03.07.2008
This confused ice passenger clearly shows how climate change is affecting the Arctic.
Photo: © Arne Nævra/Shell Wildlife Photographer of the Year
URL: http://www.aftenposten.no/english/local/article2069092.ece
Last access: 03.07.2008
Atmospheric concentrations of important greenhouse gases over the last 2,000 years.
Source: IPCC 2007
URL: http://www.ipcc.ch/graphics/graphics/ar4-wg1/jpg/faq-2-1-fig-1.jpg
Last access: 17.12.2008
Comparison of observed continental- and global-scale changes in surface temperature with results simulated by climate models using either natural or both natural and anthropogenic forcings.
Source: IPCC 2007
URL: http://www.ipcc.ch/graphics/graphics/ar4-wg1/jpg/spm4.jpg
Last access: 17.12.2008
Pacific Ocean under normal conditions.
Source: W.S. Kessler, NOAA/PMEL
URL: http://faculty.washington.edu/kessler/ENSO/enso_normal_new.gif
Last access: 18.12.2008
Pacific Ocean under El Niño conditions (onset).
Source: W.S. Kessler, NOAA/PMEL
URL: http://faculty.washington.edu/kessler/ENSO/enso_onset_new.gif
Last access: 18.12.2008
Pacific Ocean under El Niño conditions (peak).
Source: W.S. Kessler, NOAA/PMEL
URL: http://faculty.washington.edu/kessler/ENSO/enso_peak_new.gif
Last access: 18.12.2008
Landsat 7 satellite in the cleanroom prior to launch.
Photo: NASA/GSFC
URL: http://landsat.gsfc.nasa.gov/about/landsat7.html
Last access: 03.07.2008
Artist's rendering of the Terra spacecraft.
Source: NASA/GSFC/Reto Stockli
URL: http://visibleearth.nasa.gov/view_rec.php?id=114
Last access: 03.07.2008
Artist's rendering of the Terra spacecraft.
Source: NASA
URL: http://terra.nasa.gov/About/
Last access: 03.07.2008
Artist's impression of Envisat.
Source: ESA
URL: http://esamultimedia.esa.int/images/IP/ENVISATcorv_258.jpg
Last access: 03.07.2008
Envisat's instruments.
Source: Aviso
URL: http://www.aviso.oceanobs.com/fr/missions/missions-actuelles/envisat/instruments/index.html
Last access: 26.01.2009
The World Heritage site of Abu Simbel, Egypt.
Photo: WHC UNESCO
URL: http://whc.unesco.org/en/169/
Last access: 03.07.2008
The Blue Marble.
Source: NASA
URL: http://visibleearth.nasa.gov/view_rec.php?id=2429
Last access: 03.07.2008
Classification legend.
Source: Global Land Cover 2000 database, European Commission, Joint Research Centre, 2003
URL: http://www-gem.jrc.it/glc2000
Last access: 03.07.2008
Artist's view of SPOT 5.
Source: NOAA Coastal Services Center
URL: http://www.csc.noaa.gov/crs/rs_apps/sensors/spot.htm
Last access: 03.07.2008
The volcano Tungurahua on 28/11/04.
Photo: Martin Zeise
URL: http://en.wikipedia.org/wiki/Image:Equador_Tungurahua.JPG
Last access: 04.07.2008
Tungaruhua on eruption on 2/11/99.
Photo: Alcinoe Calahorrano/USGS
URL: http://volcanoes.usgs.gov/Imgs/Jpg/Tungurahua/
19991102_Tung_caption.html
Last access: 04.07.2008
Soil degradation.
Photo: ESA
URL: http://www.esa.int/esaEO/SEMHLU3J2FE_environment_0.html
Last access: 04.07.2008
The Namib Desert.
Photo: Julien Fauqueur
URL: http://docs.ufrmd.dauphine.fr/java/projets/manip_images/download/
Namibia7.jpg
Last access: 04.07.2008
World desert's map. Distribution of non-polar arid land.
Source: USGS
URL: http://pubs.usgs.gov/gip/deserts/what/world.html
Last access: 18.12.2008
Jungle burned for agriculture in Chiapas, Mexico.
Photo: Jami Dwyer
URL: http://en.wikipedia.org/wiki/Image:Lacanja_burn.JPG
Last access: 04.07.2008
Submarine view of Tarawa reefs, Kiribati, Pacific Ocean (April 1994).
Photo: Linda Wade/NOAA's Coral Kingdom Collection
URL: http://www.photolib.noaa.gov/htmls/reef0485.htm
Last access: 04.07.2008
Marine phytoplankton seen through a microscope.
Photo: N. Sullivan/NOAA/Department of Commerce
URL: http://www.esa.int/esaEO/SEMQMYTQMFF_planet_1.html#subhead1
Last access: 04.07.2008
Upwelling animation. Winds blowing across the ocean surface push water away from an area and subsurface water rises up to replace the diverging surface water.
Photo: NOAA
URL: http://oceanservice.noaa.gov/education/kits/currents/03coastal4.html
Last access: 18.12.2008
Major upwelling areas along the world's coasts are highlighted in red.
Photo: NOAA
URL: http://oceanservice.noaa.gov/education/kits/currents/media/
upwelling_image1.jpg
Last access: 18.12.2008
Center-pivot irrigation effectively delivers much-needed water to crops in eastern Washington.
Photo: Pacific Northwest National Laboratory
URL: http://picturethis.pnl.gov/PictureT.nsf/All/477QCL?opendocument
Last access: 04.07.2008
Monkey, bird and spider geoglyphs.
Photo: Association Dr. Maria Reiche
URL: http://www.htw-dresden.de/~nazca/Englisch/bilder2.htm
Last access: 04.07.2008
Per capita greenhouse gas emissions by country in 2000 by country in 2000 (including land-use change).
Source: Wikimedia Commons
URL: http://en.wikipedia.org/wiki/Image:GHG_per_capita_2000.svg
Last access: 20.11.2008
Greenhouse gas emissions by country in 2000 by country in 2000 (including land-use change).
Source: Wikimedia Commons
URL: http://en.wikipedia.org/wiki/Image:GHG_by_country_2000.svg
Last access: 20.11.2008
Bengladesh Population Density within and outside of a 10m Low Elevation Coastal Zone.
Source: CIESIN, Columbia University, 2000
URL: http://sedac.ciesin.columbia.edu/wdc/map_gallery.jsp
Last access: 20.11.2008
The Glasshouse, RHS Wisley Garden, Surrey, UK (08/08/07).
Photo: Wikimedia Commons, Mark Boyce
URL: http://commons.wikimedia.org/wiki/File:RHSGlasshouse.JPG
Last access: 03.02.2009
Artist's view of the TOPEX/POSEIDON altimeter.
Source: NASA
URL: See module 8
Last access: 03.02.2009
Forest fruits from Barro Colorado Island, Panama.
Source: Wikimedia Commons, Christian Ziegler
URL: http://commons.wikimedia.org/wiki/
File:Forest_fruits_from_Barro_Colorado.png
Last access: 03.02.2009
Land use change around the airport near El Médano, Tenerife.
Source: Naumann 2008
Last access: 03.02.2009
The giant Escondida mine in Chile.
Photo: BHP Billiton Group
URL: http://www.theage.com.au/articles/2004/10/16/1097784094618.html?from=storylhs
Last access: 03.02.2009
Gulf stream temperature and current velocity.
Source: CIMAS
URL: http://oceancurrents.rsmas.miami.edu/atlantic/gulf-stream.html
Last access: 03.02.2009
Oil slick visible on water's surface above the sunken battleship USS Arizona in Pearl Harbor, Hawaii.
Photo: Wikimedia Commons © James G. Howes, November, 2005
URL: http://commons.wikimedia.org/wiki/File:USS_Arizona_oil_seepage.jpg
Last access: 03.02.2009
Phaeocystis blooms can produce unpleasant foam which often accumulates on beaches.
Photo: IVM
URL: See Module 7
Last access: 03.02.2009
A field of cauliflowers, between two fields of lettuce and potatoes.
Photo: The Regional Institute Ltd, Sydney, Australia
URL: http://www.regional.org.au/au/gia/06/169sedat.htm
Last access: 03.02.2009
View of the temple of warriors, Pre-Hispanic City of Chichen-Itza, Mexico.
Photo: © UNESCO/Thierry Jolly
URL: See Module 2
Last access: 03.02.2009
Ozone layers.
Source: NASA
URL: http://www.nasa.gov/centers/goddard/news/topstory/2003/0617eyes.html
Last access: 03.02.2009
Ozone formation.
Source: Ozone Solutions, Inc
URL: http://www.ozoneapplications.com/info/ozone_corona_discharge.htm
Last access: 18.03.2009
Movies: ozone formation, CFC destruction and ozone destruction.
Source: NASA/GSFC/Scientific Visualization Studio
URL: http://svs.gsfc.nasa.gov/stories/solve/ozone.html
Last access: 03.02.2009
Satellites Ikonos, Quickbird, Orbview-3 and Formosat-2.
Source: MEPSYD, ISFTIC
URL: http://concurso.cnice.mec.es/cnice2006/material121/unidad3/
Last access: 06.02.2009
Satellite GeoEye-1.
Source: © GeoEye
URL: http://www.mundobits.com/?attachment_id=206
Last access: 06.02.2009
Satellite WorldView-1.
Source: © DigitalGlobe
URL: http://soswindows.free.fr/news/google/
Last access: 06.02.2009
Satellite Kompsat-2.
Source: © 2002 KRSC
URL: http://krsc.kari.re.kr/eng/satellite/satellite_01_2_msc.htm
Last access: 06.02.2009