BoineeloMoyo/Botswana-NDVI

# NDVI Time Series Analysis - Botswana This repository contains a script for conducting an annual animated NDVI (Normalized Difference Vegetation Index) analysis in Botswana using Google Earth Engine (GEE) using the MODIS Terra Vegetation Indices 16-Day Global 1km dataset. NDVI is a key indicator of vegetation health and can provide valuable insights into environmental changes over time ## What you will need first ### 1. Define Area of Interest (AOI): To initiate the analysis, it is imperative to accurately delineate the Area of Interest (AOI) or study area. The recommended method for country-level analysis involves the upload of a boundary shapefile into Google Earth Engine ### 2. Define Geometry Level Point: Establishing a geometry level point is crucial for serving as the spatial reference point for animated monthly information. Example: ``` var geometryLabel: Point (23.52,-17.30) type: Point coordinates: [23.524982828900136,-17.309520044478152] ``` ### 3. Define Geometry Gradient Bar: To enhance the visual representation of the analysis, specify a geometry gradient bar. This serves both as a spatial reference point and determines the size of the gradient legend. Example snippet: ``` var geomeyGradientBar: Polygon, 4 vertices type: Polygon coordinates: List (1 element) 0: List (5 elements) 0: [22.87678946952514,-26.500852964941146] 1: [27.073566813275136,-26.500852964941146] 2: [27.073566813275136,-26.02795337316033] 3: [22.87678946952514,-26.02795337316033] 4: [22.87678946952514,-26.500852964941146] ``` Below is the same script applied to a smaller spatial area (the capital city of Botswana, Gaborone) ### Contributing Contributions to this project are welcomed ### License This project is licensed under the MIT License. Refer to the LICENSE file for details. ### Acknowledgments Massive gratitude to Google Earth Engine for providing powerful geospatial analysis tools.