Dulan Weerasingha

5 Questions 7 Answers 0 Followers

Questions related from Dulan Weerasingha

When I export polygons layer from Google Earth Engine, has showed only single polygon in its attribute table. Why is that?

The layer Polygon_A is a vector layer consisting of numerous polygons, created from a binary raster layer with values of 0 and 1. On the other hand, Polygon_B is a vector layer created from...

23 March 2023 3,558 3 View

What is a better for Shoreline extraction?

I want shoreline extraction using a water mask index which is MNDWI. I decided use Landsat data for it. There are two kind of data sets. One is Collection-01 level-01 another one is collection-01...

01 January 1970 7,384 3 View

How can i fixed this DN value range of MNDWI

Greetings! I am undergraduate Student.These days i am carrying research about Shoreline analysis using Landsat images. In this case some of research article mention, it's better to use surface...

01 January 1970 8,054 5 View

How i found surface reflectance value of sea water and normal water of each bands of thematic mapper? (Landsat 5/7/8)

In these days, i want figure out what is suitable threshold value for extraction land from water bodies Using Modified normalize differential water index. I want determine boundary of shoreline...

01 January 1970 3,629 2 View

Why isn't processed Panchromatic band of Landsat to surface reflectance in USGS?

USGS provide two kind of major Data sets, which are collection 01- Level 01 and Level-02 data. In Level-02 data All the other visual bands are process to surface reflectance but why panchromatic...

01 January 1970 2,161 3 View