File:Land shallow topo alpha 2048.png
File originale (2 048 × 1 024 pixel, dimensione del file: 1,58 MB, tipo MIME: image/png)
Didascalie
DescrizioneLand shallow topo alpha 2048.png |
Description from http://visibleearth.nasa.gov/view_rec.php?id=2433 : Credit: NASA Goddard Space Flight Center Image by Reto Stöckli (land surface, shallow water, clouds). Enhancements by Robert Simmon (ocean color, compositing, 3D globes, animation). Data and technical support: MODIS Land Group; MODIS Science Data Support Team; MODIS Atmosphere Group; MODIS Ocean Group Additional data: USGS EROS Data Center (topography); USGS Terrestrial Remote Sensing Flagstaff Field Center (Antarctica); Defense Meteorological Satellite Program (city lights). This spectacular “blue marble” image is the most detailed true-color image of the entire Earth to date. Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer (.386 square mile) of our planet. These images are freely available to educators, scientists, museums, and the public. This record includes preview images and links to full resolution versions up to 21,600 pixels across. Much of the information contained in this image came from a single remote-sensing device-NASA’s Moderate Resolution Imaging Spectroradiometer, or MODIS. Flying over 700 km above the Earth onboard the Terra satellite, MODIS provides an integrated tool for observing a variety of terrestrial, oceanic, and atmospheric features of the Earth. The land and coastal ocean portions of these images are based on surface observations collected from June through September 2001 and combined, or composited, every eight days to compensate for clouds that might block the sensor’s view of the surface on any single day. Two different types of ocean data were used in these images: shallow water true color data, and global ocean color (or chlorophyll) data. Topographic shading is based on the GTOPO 30 elevation dataset compiled by the U.S. Geological Survey’s EROS Data Center. MODIS observations of polar sea ice were combined with observations of Antarctica made by the National Oceanic and Atmospheric Administration’s AVHRR sensor—the Advanced Very High Resolution Radiometer. The cloud image is a composite of two days of imagery collected in visible light wavelengths and a third day of thermal infra-red imagery over the poles. Global city lights, derived from 9 months of observations from the Defense Meteorological Satellite Program, are superimposed on a darkened land surface map. |
Data | |
Fonte | |
Autore |
|
Altre versioni |
Opere derivate da questo file: |
Questa è una immagine ritoccata, il che significa che è stata modificata digitalmente dalla sua versione originale. Modifiche: replaced water color by transparent color. La versione originale può essere vista qui: Land shallow topo 2048.jpg. Le modifiche sono di Martin Kraus.
|
Public domainPublic domainfalsefalse |
Questo file è nel pubblico dominio perché creato dalla NASA. La politica sul copyright della NASA afferma che «il materiale della NASA non è protetto da copyright a meno che non sia specificato altrimenti». (NASA copyright policy e JPL Image Use Policy). | ||
Attenzione:
|
Registro originale del caricamento[modifica]
This image is a derivative work of the following images:
- File:Land_shallow_topo_2048.jpg licensed with PD-USGov-NASA
- 2006-01-14T15:31:13Z Haham hanuka 2048x1024 (238676 Bytes) http://veimages.gsfc.nasa.gov//2433/land_shallow_topo_2048.jpg [[Category:Earth]]
Uploaded with derivativeFX
Cronologia del file
Fare clic su un gruppo data/ora per vedere il file come si presentava nel momento indicato.
Data/Ora | Miniatura | Dimensioni | Utente | Commento | |
---|---|---|---|---|---|
attuale | 14:01, 4 lug 2011 | 2 048 × 1 024 (1,58 MB) | Martin Kraus (discussione | contributi) | Reverted to version as of 12:30, 4 July 2011 because the later version is worse | |
12:52, 4 lug 2011 | 2 048 × 1 024 (1,6 MB) | Martin Kraus (discussione | contributi) | finally removed pixels of shallow waters | ||
12:30, 4 lug 2011 | 2 048 × 1 024 (1,58 MB) | Martin Kraus (discussione | contributi) | still trying to remove pixels of shallow water | ||
12:22, 4 lug 2011 | 2 048 × 1 024 (1,58 MB) | Martin Kraus (discussione | contributi) | previous upload didn't work, again: trying to remove shallow water pixels | ||
12:19, 4 lug 2011 | 2 048 × 1 024 (1,58 MB) | Martin Kraus (discussione | contributi) | set some more of the shallow water pixels to transparent | ||
12:03, 4 lug 2011 | 2 048 × 1 024 (1,58 MB) | Martin Kraus (discussione | contributi) | {{Information |Description=|date=4 July, 2011 |Source=*File:Land_shallow_topo_2048.jpg |Date=2011-07-04 12:01 (UTC) |Author=*File:Land_shallow_topo_2048.jpg: NASA *derivative work: ~~~ |Permission= |other_versions= }} {{RetouchedPicture|repla |
Impossibile sovrascrivere questo file.
Utilizzo del file
Le seguenti 2 pagine usano questo file:
Utilizzo globale del file
Anche i seguenti wiki usano questo file:
- Usato nelle seguenti pagine di en.wikibooks.org:
- GLSL Programming/Unity/Glossy Textures
- GLSL Programming/Unity/Transparent Textures
- GLSL Programming/Blender/Glossy Textures
- GLSL Programming/Blender/Transparent Textures
- GLSL Programming/GLUT/Glossy Textures
- GLSL Programming/GLUT/Transparent Textures
- User:Dirk Hünniger/gsl
- Cg Programming/Unity/Glossy Textures
- Cg Programming/Unity/Transparent Textures
- Usato nelle seguenti pagine di fr.wikipedia.org:
- Usato nelle seguenti pagine di it.wikipedia.org: