Image information and metadata
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I am looking for a software to download Google Earth Imagery. I tried Google Map using ? And how to find out imageries date of an image shown?
The images in SIC’s image library are date-stamped, so you are never in doubt as to how recently the image was photographed. If no image of your target area exists in our library, or if you need to monitor changes over time, we can easily order a custom satellite image to be taken, which ensures that your image is as current as technology allows. Google Earth is a great addition to the growing set of software solutions devoted to viewing satellite image data from around the world.
While Google Earth satellite imagery doesn’t match the quality of traditional high-resolution satellite images, it is an excellent way to determine the coordinates of a location you’d like to study further. Google Earth Pro free download is available at: Google Earth Pro , which includes, among other enhancements, faster performance and better measurement tools. While the image quality of Google Earth far surpasses anything that has been available at the free consumer level in the past, it still doesn’t come close to matching the detail and quality of a custom high-resolution satellite image shot by one of the major satellites.
Now, compare the following satellite images of the Lagos, Nigeria airport. The first image was available through Google Earth:. On close inspection of the images, some differences become clear.
Find out the Date of Satellite images from Google Maps
One of the wonders of the Modern World is Google Maps and other online mapping services. At your fingertips, with your computer or you phone, you can instantly see a map of anywhere in the world, and find directions to your favorite coffee shop or pizzeria. If you’ve played around with these sites at all, you soon discover they have a satellite layer, showing high resolution images of virtually anywhere on Earth. A fun past time for many of us especially our students is looking at their own homes on these satellite images, and identifying their own cars and backyard gardens and recreation sites.
A common question that arises in these explorations is, “when was this picture taken? If used in the classroom setting: this activity is suitable for high school science students who have a knowledge of geometry and trigonometry; in the college setting, it is suitable for intro physics or astronomy students.
See a map of new satellite imagery recently added to Google Earth.
Google Earth allows you to explore the world right at the tip of your fingers, at your own comfort. Google Earth is the three-dimensional planetary browser that shows our entire planet well, minus a few top-secret military bases in satellite imagery and aerial photos. It should not be confused with Google Maps, as these are two separate software.
Google Earth allows you to discover hundreds of 3D places without leaving the comfort of your seat. The images you see on Google Earth are collected over time from providers and platforms. You can see images in street view, aerial and 3D. However, these images are not in real time, so it is not possible to see live changes. Some images show a single acquisition date, while some show a range of dates taken over days or months.
If you are looking to find more information about when the image was collected, it is best to contact the original image providers as Google is not able to provide more information about the images aside from what it currently shows. According to the Google Earth blog, Google Earth updates about once a month. In fact, the average map data is between one and three years old. Google does not update the entire map in each go.
To explore image bands and properties in the Code Editor, print the image and inspect the output in the console. This information can also be accessed programmatically. For example, the following demonstrates how to access information about bands, projections and other metadata:. Note that the results of these queries are server-side objects.
Google Earth vs. Custom Satellite Imagery. The images in SIC’s image library are date-stamped, so you are never in doubt as to how recently the image was.
If you’re browsing Google Maps in Satellite View, you may notice that location details are not always up-to-date. Google Maps uses the same satellite data as Google Earth. Although these images update regularly, you typically won’t see live changes, and there may be a lag of up to a few years between the satellite image you see on your screen and the the way a location looks in real life. You can’t predict when a map will change, but you can get help from Google Earth to find out the date of its last update.
With Google’s Follow Your World tool, you can also sign up for email notifications when specific location images change. The satellite data on Google Maps is typically between 1 to 3 years old. According to the Google Earth Blog, data updates usually happen about once a month, but they may not show real-time images. Google Earth gathers data from various satellite and aerial photography sources, and it can take months to process, compare and set up the data before it appears on a map.
There are times when Google Maps updates in real-time to mark major events and to give assistance in emergency situations. For example, it updated imagery for the London Olympic Games just before the Opening Ceremony, and it provided updated satellite crisis maps to help aid teams assess damage and target locations in need of help shortly after the Nepal earthquake in April These real-time updates are not common and map lovers can enjoy surfing the maps while watching instant satellite imagery updating.
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The wonders of modern technology, both space travel and the internet, have combined to make it easy to find high-quality satellite photos for just about any spot on Earth. The Google Earth web application combines satellite imagery from multiple sources with aerial photography. The result is an interactive map of our planet. You can zoom in, zoom out, search by address and probably find your house. You can navigate to pretty much any point on earth in order to explore the available images.
// Get the timestamp and convert it to a date. var date = (image.
Chapter 1. Satellite Maps 1 Google Maps. So has its features:. The only downside I can think of is that you only get ONE snapshot in time. Popquiz, hotshot! Google Earth Pro lets you hit rewind in its historical timeline. That way, you can interactively view past satellite maps for anywhere in the world. Long ago, this used to be a paid feature.
So if you want to see imagery like capsules of time, Google Earth Pro is a complete winner. It shows over layers of satellite imagery.
Keeping Earth up to date and looking great
With several critical applications relying on Google Maps, wondering earth-observing satellites, and street-level data obtained by Google’s own Street View project. Overhead imagery gives Google details of roads and buildings, while (UP-DATE: on the 12th of September I received email from Google.
There are many sources of satellite data you can use depending on your needs. Some platforms will let you view the data in your browser, some offer download options so you can process it and extract meaningful insights. Some focus on open free satellite imagery, some focus on the highest resolution satellite imagery available for purchase. If you are wondering which providers has the most up-to-date satellite imagery, the highest resolution, or the largest library for open data, we have answers.
Before we start, if you were looking for real-time satellite images of your house, these most likely do not exist — Blame Hollywood for creating false expectations. More explanations on live satellite imagery in this blog post: What does real-time satellite data look like. Most of the satellite data available for free is either dated from a couple of months to a couple of years, see Google Earth , or low resolution you can detect rough building shapes but not cars or people.
Near real-time, high resolution satellite data that falls within open data programs is usually only available for humanitarian reasons Maxar Open Data program offers free high resolution data to natural disaster recovery teams. If you are not familiar with Earth observation data, here is an example of the contrast between high resolution commercial data, on the left and low resolution open data, on the right. Google Earth offers free access to some of the highest resolution satellite imagery, although the highest resolution images are actually taken from airplanes.
Most of the data on Google Earth was taken in the last years. If you are curious to see images of our changing world, Google Timelapse is also a great free tool. Pros: free to use for non-commercial applications , large library entire world , no account needed, easily browsable, multiple resolutions available.
Cons: recent images might not be available, not downloadable, different licenses and pricing for commercial applications.