Comments on: USGS Earth Explorer: Download Free Landsat Imagery

By: GISGeography

GISGeography — Wed, 24 Dec 2025 11:31:29 +0000

We have two pages that can help you with this –

https://gisgeography.com/ndvi-normalized-difference-vegetation-index/
https://gisgeography.com/how-to-ndvi-maps-arcgis/

By: Anthony M

Anthony M — Thu, 18 Dec 2025 17:18:31 +0000

My interest is to create ndvi indices from satellite data to create quality indices that can help classify and grade farm output. How can I go about this?

By: Xie

Xie — Thu, 28 Mar 2024 11:11:25 +0000

In reply to Umar. The time range may not be accurate, try the period 1990-2020

By: GISGeography

GISGeography — Sun, 25 Feb 2024 13:34:43 +0000

In reply to Zainab.

It’s hard for me to know if the data you downloaded is a larger extent… or if you are missing data. Here are my answers to both questions:

1) If the data that you downloaded covers a wider area. Then, you’ll have to clip it using a “raster clip” tool. This is available in open source QGIS.
2) If you are missing data, then likely you haven’t downloaded all the tiles that you need. What I usually do is I zoom into my area of interest. And then I choose the “Use Map” option. After this zoom out, you’ll see that it selects the entire rectangle area of your screen. Once you get to the “Results” step, make sure that you download all the tiles. This way, you won’t have any missing data.

Hope this helps!

By: Zainab

Zainab — Sat, 24 Feb 2024 13:25:41 +0000

In reply to Tekola Tessema. I am student of MS. I've tried to download forest data but data covers wider area forest is just like a dot there. if you have any idea to download a specific part of land . Please help me

By: Abdur Rehman

Abdur Rehman — Sat, 16 Dec 2023 13:15:44 +0000

I want to download Landsat data but when I click on Landsat… I didn’t find Collection 1 Level 1? Can anyone help me? Thanks

By: GISGeography

GISGeography — Thu, 07 Dec 2023 11:36:14 +0000

In reply to Tekola Tessema. Sorry, but I've never seen this error before.

By: Tekola Tessema

Tekola Tessema — Mon, 04 Dec 2023 13:21:38 +0000

I am a PhD student and currently doing my research to detect forest cover change and hence want to download land use land cover data from USGS Earth Explorer. I tried to register on the USGS many times, but it shows me the following message again and again through each of my trial.

“An error occurred
An error occurred during execution; please try again later”.

So, if there is another option to register let you help me please.

By: Umar

Umar — Sun, 24 Sep 2023 16:44:59 +0000

After several trying to download digital elevation model-DEM I was unable. I don’t know why. I even go to Result but it keep on showing me no results found. Please help me

By: Jacob

Jacob — Fri, 09 Dec 2022 22:39:26 +0000

I’m trying to use SRTM-1 data to create a topographical map in a CNC machine but I’m having difficulties getting BigTopo to read the files. Am i downloading the wrong data from EarthExplorer?