Downloading and processing of sentinel-2

Abstract

sentry 2 The use of ID mainly includes downloading and simple processing .

sentry 2 Download of No （ It is recommended to use Google chrome）

Download url （ ESA's Copernicus Open Access Hub）：https://scihub.copernicus.eu/dhus/#/home

1. You need to apply for an account

If you can't log in , You may need to check your email .

sentry 2 Processing of number

Ⅰ.Sen2Cor To deal with

1.win+R Input cmd

2. Input path Change to Sen2Cor Folder , Then input L2A_Process.bat --help
d:
cd D:\Sen2Cor-02.09.00-win64
L2A_Process.bat --help

A lot of things will pop up , Some information about input parameters , Don't worry .

3. Enter the unzipped folder of the downloaded image

Take my own , Download the zip After decompression, it is ：
S2A_MSIL1C_20211227T025131_N0301_R132_T50SNA_20211227T044053.SAFE
cmd What you need to enter in is ：
L2A_Process D:\huaian_data_file\S2A_MSIL1C_20211227T025131_N0301_R132_T50SNA_20211227T044053.SAFE

Then wait for the progress to arrive 100% Just fine .
Sometimes this progress doesn't jump all the time , Here's the picture , Probably from 66% Jump straight to 100%, So sometimes it stops , Don't worry about it .

This process is to process all band information by default , You can deal with Add after –resolution 10

e.g.L2A_Process D:\huaian_data_file\S2A_MSIL1C_20211227T025131_N0301_R132_T50SNA_20211227T044053.SAFE --resolution 10
Only deal with 10m Of , Should be RGBNIR Four bands （ It might be faster , Never tried. ）

Abnormal situation

1.IDM The version of does not support downloading （ Unresolved ）

download 17 No problem with the data of , download 4 This reminder pops up on the data of No ~

2. Select the download area and parameter settings （ You need a Google browser plug-in before downloading IDM）