seanyx / rivwidthcloudpaper Goto Github PK

// Assume 'aoi' is defined elsewhere in your script as your area of interest
var geometry = ee.Geometry.Rectangle([-89.60113734129604, 36.32131447834511, -89.48990076903041, 36.451768707535194]);

Map.addLayer(geometry)
Map.centerObject(geometry)
// Load the RivWidthCloud function library
var fns = require('users/eeProject/RivWidthCloudPaper:rwc_landsat.js');

// Load the image using its ID and clip it to the area of interest
var image = ee.Image("LANDSAT/LC08/C02/T1_L2/LC08_023034_20231002").clip(geometry);

// Setting the parameters for the RivWidthCloud (RWC) function
var rwc = fns.rwGenSR('Jones2019', 4000, 333, 500, geometry);

// Apply the RWC function to the clipped image
var widths = rwc(image);

// Remove the geometry before exporting the width as a CSV file
widths = widths.map(function(f) { return(f.setGeometry(null)); });

// Export the result as a CSV file into Google Drive
Export.table.toDrive({
collection: widths,
description: "Landsat_Widths",
folder: "asad",
fileNamePrefix: "widths",
fileFormat: "CSV"
});

"When I run this code for my study area using a single image it gives me this error, I even try this method, downloaded the image in assests and then I applied the code same error is coming."

I am working towards porting the existing Code Editor js support for Collection 2 images to the Python tooling. This repo might not be active any more but I'll submit a PR regardless. Development is happening at https://github.com/reredos/RivWidthCloudPaper/tree/jsta

该方法若将landsat数据替换成S2_SR数据，应该怎样实现呢

Hello,

I have been working with my student on applying this code to some locations in Somalia and Ethiopia. We have been using the javascript version described here. We are able to run your example, and get good data out, but when we run it for another location the code outputs an empty csv file with no data, not even the headers of the csv file.

You can see the location and landsat image we are using here.

I wondered if this was an issue in detecting rivers in arid landscapes, so I experimented with some reaches of rivers in locations to your example, but had the same problems.

Are you able to offer any insight into what we are doing wrong?

Many thanks!