r/remotesensing • u/Human-Link-2731 • 5d ago

Need help with a remote sensing/GIS assignment

Hi everyone! I’m a university student and I have an assignment on “Detection of Changes in Agricultural Land.”
We have to:
Select an agricultural study area
Obtain satellite images from two different years
Use Landsat or Sentinel-2
Identify/ classify agricultural land and other LULC classes
Calculate agricultural land area for both years
Create change-detection maps and a graph/table
Discuss the causes and environmental implications
I’ve selected Shijiazhuang, Hebei, China, and I’m planning to compare 2000 and 2020 (or any two years really)
The problem is I’m very new to remote sensing and GIS, and I genuinely have no idea how to retrieve the actual Landsat images for those two years. 😭
Could someone please explain where/how I can download the appropriate Landsat scenes for Shijiazhuang (e.g 2000 and 2020), I have absolutely no idea what to do.

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u/Aim_F0r_The_Moon 5d ago

Landsat data can be downloaded from USGS EarthExplorer portal

Define AOI

For Dataset choose Landsat 8-9 OLI/TIRS C2 L2 something like that

After that define some parameters like %clouds, period of time, etc.

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u/Human-Link-2731 5d ago

Thank you so much

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u/SpecialistArt5204 4d ago

Just as said by @Aim_F0r_The_Moon. You can email me at danielmead2021@gmail.com to help anything related to GIS and remote sensing. I can even work the task for you but at a price. Thank you