The Landsat
8 OLI imagery can be downloaded for free via earthexplorer.usgs.gov. You must login
first to get it. Find your location by scrolling and enlarging the existing
image on the right side of the web. Make sure the location that you want is
right. Mark these location by clicking one of the points of the site. For example,
I searched for image of Gunungsewu in Gunungkidul District, Yogyakarta
Province, Indonesia. I click on a place in the area of Gunungsewu depicted in
the web image. A red symbol will appear and the location coordinate will appear
in the box on the left.
 |
| A red mark appear on the web image |
 |
| The location coordinate of the mark |
Next,
specify the time range of the desired image retrieval in the field below. Click
the Data Set button below it. Select Landsat 8 OLI/TIRS or Landsat 8 OLI/TIRS Pre-WRS-2
on the choice of Landsat Archives. Click the Result button below it. Earthexplorer
will find the data you want. The data that match with the criteria will appear.
Select the best data as desired and click Download Option button. Download
option box will appear, choose the most appropriate to your needs. Click on the
download button to download it.
The capacity
of the data may be very large. Speed up your internet access will determine the
download time. Congratulation.
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