In 20 13, Google cooperated with the US Geological Survey, the National Aeronautics and Space Administration (NASA) and Time magazine to summarize the satellite maps since 1984, which enabled users to view and download multi-temporal images.
Switch the method of viewing historical image map:
Make sure that the software version of Shuijingzhu Universal Map Downloader is X3.0build 1469 or above, and select "Historical Image" in the map type to switch to the multi-temporal historical image map. Taking the historical images of "Bird's Nest" and "Water Cube" as an example, the effect is shown in the following figure:
Browsing methods of historical image maps in different periods;
Drag the slider on the timeline to view the satellite images taken on the specified date, such as the construction of the Bird's Nest and the Water Cube on April 27th, 2006, as shown in the following figure:
On April 25th, 2007, the main construction of the Bird's Nest and the Water Cube was basically completed, as shown in the following figure.
The Bird's Nest and the Water Cube were completed on May 25th, 2008, as shown in the following figure.
Extended data:
Multiple images
Remote sensing technology, especially satellite remote sensing, has the ability to cover the earth repeatedly in a fixed period, and can provide multi-temporal remote sensing images with various time resolutions to meet the requirements of dynamic analysis. The requirement of multi-temporal remote sensing image data depends on the dynamic change speed of the analysis object and the length of the process.
For example, the comparative analysis of typhoon development process requires a series of multi-temporal satellite cloud images, with time intervals ranging from 12 hours to ten days; In order to analyze the speed and scope of desertification, only multi-time data of different years are needed. The comparison and comprehensive analysis of multi-temporal remote sensing data is an important and effective means to study and track the evolution track of natural history and monitor the dynamic changes of environment and resources.
Application of Google Earth
Google Earth allows you to travel anywhere in the world and view satellite images, maps, terrain, 3D buildings, canyons and galaxy oceans from outer space. You can explore rich geographical content, save your places and share them with others.
1, historical images from all over the world
If you are curious about what is happening around you, then Google Earth can take you back to the past. With a little touch, we can observe the changes of suburban expansion, ice sheet melting and coastal erosion.
2. Seabed and sea level data provided by marine experts
At the new bottom of the sea, you can sink to the bottom of the sea at any time, see the exclusive content of partners such as BBC and National Geographic, and explore the wreckage of 3D sunken ships such as Titanic.
3. Simplified tour function with audio and video recording function.
You can further mark landmarks in Google Earth and record unlimited trips. Just turn on the tour function and press the record button, and you can see the whole world. You can even add background music or voice-over to make the trip more personalized.