Скачать или смотреть How to clip Landsat satellite image by circle shape file

ou can clip a Landsat satellite image using a circular (buffer) shapefile easily in QGIS (most common) or ArcGIS. Below are clear step-by-step methods. Since you work a lot with GIS and QGIS, I’ll explain QGIS first.

Method 1: Clip Landsat Image by Circular Shapefile in QGIS (Recommended)
Step 1: Load Data

Open QGIS

Go to Layer → Add Layer → Add Raster Layer → load your Landsat image

Go to Layer → Add Layer → Add Vector Layer → load your circle shapefile

⚠️ Make sure both layers have the same CRS

Step 2: Check Circle Shapefile

Your shapefile must be polygon type

If you only have a point, create a circle using:

Processing Toolbox → Vector geometry → Buffer

Set buffer distance (e.g., 1000 m)

Dissolve result → ✔️

Step 3: Clip Raster by Mask Layer

Open Processing Toolbox

Go to GDAL → Raster extraction → Clip raster by mask layer

Set parameters:

Input layer: Landsat raster

Mask layer: Circle shapefile

✔️ Check Crop to cutline

✔️ Keep resolution of input raster

Choose output location

Click Run

✅ Your Landsat image is now clipped to a circular shape

Method 2: Clip Using ArcGIS (ArcMap / ArcGIS Pro)
Steps

Add Landsat image and circle shapefile

Open ArcToolbox

Go to Spatial Analyst Tools → Extraction → Extract by Mask

Input Raster → Landsat image

Feature Mask → Circle shapefile

Run tool

Common Errors & Solutions
Issue Solution
Black background outside circle Enable Crop to cutline
Circle not visible Check CRS & layer order
Output not circular Shapefile must be polygon
Optional (Advanced Tips)

For multiple circles, dissolve if you want a single output

Use Model Builder or Batch Processing for many images

For Landsat bands, merge bands first, then clip
#Landsat
#QGIS
#RasterClipping
#CircularShapefile
#ClipByMask
#RemoteSensing
#GISAnalysis
#BufferTool
#SatelliteImageProcessing