Download Stream data with Google Earth Engine | HydroSHED

Explore Stream data Worldwide with Google Earth Engine | HydroSHEDS Mapping Tutorial 🌎
Welcome to our channel! In this video, we dive into the fascinating world of HydroSHEDS, a powerful mapping product that unlocks hydrographic information on a global scale. 🗺️

🚀 What is HydroSHEDS?
HydroSHEDS is a mapping marvel that provides consistent hydrographic data, ranging from river networks to watershed boundaries, drainage directions, and flow accumulations. Utilizing NASA’s Shuttle Radar Topography Mission (SRTM) data from 2000, HydroSHEDS offers a suite of geo-referenced datasets in various scales.

🌐 Global Coverage
Discover the world’s rivers in unprecedented detail, thanks to HydroSHEDS’ high-resolution datasets. Whether you’re a researcher, environmentalist, or just an avid explorer, this tool opens up a new perspective on the Earth’s hydrological landscape.
🌍 Technical Insights
Join us as we explore the technical aspects of HydroSHEDS, understanding the data’s origins, resolution, and limitations. Learn how HydroSHEDS brings consistency to mapping efforts, with polylines representing river networks derived from SRTM elevation data.
🗺️ Mapping Free-Flowing Rivers
We’ll guide you through the process of mapping free-flowing rivers using HydroSHEDS and Google Earth Engine. Witness the seamless integration of HydroSHEDS datasets into your mapping endeavours.
❗ Important Note
Be aware of the quality variations in HydroSHEDS data, particularly in regions above 60 degrees northern latitude. Understand the impact of the absence of SRTM elevation data in these areas and the use of a coarser-resolution DEM (HYDRO1k provided by USGS).
🌿 Conservation Impact
Discover how HydroSHEDS was developed through collaboration between the World Wildlife Fund (WWF) Conservation Science Program, the U.S. Geological Survey, the International Centre for Tropical Agriculture, The Nature Conservancy, and the Center for Environmental Systems Research of the University of Kassel, Germany.
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🔍 Resources and Useful link
Shareable link: https://code.earthengine.google.com/18f1886083ef92bb843f29a42673974e
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00:00 Introduction
01:38 Importing Stream data
01:50 Selecting Study Area
03:18 Visualizing stream
03:47 Downloading stream – Process
05:05 Downloading stream
05:52 Choosing data format
06:33 View & download from Google Drive
07:10 Converting stream KML to Shapefile (ArcGIS)
08:45 View Stream in ArcGIS

#HydroSHEDS #Mapping #GoogleEarth #RiverExploration #ConservationScience 🌿 #streamdata #kml #shapefile

Hello everyone welcome to the channel so in this video I’m going to show you how to download the river data with Google Earth engine so let’s get started so now let me explain about this data let me type in the search section as a river like here so now we’re going to click

This option called WWF hydroset free flowing river Network version one click this so now there is a description about the WWF Hydro shed free flowing river Network version one so there is a few description about about this data so there is hydroset is a mapping product that provides the hydrographic

Information for regional and global scale application in the consistent form it offers a suits of Geor reference data sets at various scales including River Network watered boundaries drainage Direction flow accumulation and hydro shets is a based on elevation data obtained by in 2000 by NASA Shuttle radar topographic mission that is srtm

Dem so this data set provides a poly line that represents a river Network derived from and the consistent with hydros share data set datas are based on 15 R seconds resolution raster data so now let me copy this code that is W feature collection WWF Hydro shed version one free flowing river we’re

Going to copy this now let me close this so here you can able to visualize I’ll show you how to download the free flowing river Network for any study location in the world using Google Earth engine so now to let us import this data into our Earth engine so to import our

Data into our Earth engine that is the river data we defined a variable called River equals to w. feature collection WWF hydrosheds version one free flowing reverse so now to we going to filter with the specific study region so now you can choose any part of your world

Asio study region so now in my case I have selected this only the chenai is a part of my study region for that I have created a polygon around the study region now let me show you how to create a polygon so now let me delete this so

Now we’re going to click this option called uh so now we’re going to click this option called uh draw a rectangle so now let me draw let me select that so I’ve selected it so now let me draw over my study region so now let me drag this so now

Selected uh this entire part of uh this part of the area as my study region so which is indicated in this color so now you can able to visualize here we created a polygon with four vertices so now let us rename this uh geometry as a study

Area so now I have defined as a variable study area the polygon it is a four vertices represents St area represents this polygon with four vertices so now we defined dot filter bound St area St area represents this particular this particular polygon so now you can able to visualize

Here next next we’re going to add our River layer into our Earth engine for that we Define map do add layer river river represents our River data that is our this particular variable and next the curly brackets refers to default visualization parameter and we’re going

To Output the layer name as a river so for that we defined as a river to Center this layer we Define map do Center object and River here represents our layer and with a specific zoom level of N9 so next to download this part so next to download this River data we basically

Defined as a export. table dot to drive River represents our River data so this specific variable and similarly we G given a description as a river Network for this task and it will be stored in the river downloads folder in our drive so now let us run this code go to the

Option called run script and click run script so now you can able to visualize the layers are getting loaded here so you can able to visualize it now so you can clearly able to view that our River data has been entirely covered the study region so you can clearly able to view

Here so now let me turn off this uh layer that is of the study area so now let me turn to satellite mode so you can able to clearly able to visualize it so it was more clear here so layers here so the layers are now loaded so now you can

Able to view here we have uh we have extracted our River data only in our part no study area so you can able to clearly able to visualize that so now next Next Step we’re going to download this particular our River data to our Google Drive for that go to the task

Section here and you can able to visualize here there’s an unsubmitted task called River Network so now let me make some changes I will add as a river Network final so now I have made some changes R Network final so now let me uh reset this and run

This yeah the river data is loaded here so now let me save this so now uh let us go to the T section and unsubmitted task click this option called run so now a new window pops up popped up saying initiate table export so now the dash name is River

Network and drive folder going to save in the drive folder called River downloads and we’re going to uh file format we’re going to chooses specifically is KL so KL is a pretty good file format so make sure that you save in the KML file format and Export

As a KML file format so now click this option called run now uh now we can able to visualize in our task section our River network uh final is running and now we can able to visualize our submitted task River Network final is completed it is completed in less

Than 1 minute to exporting to our Google Drive so now let me click this option called open and draw now in the drive section you can able to visualize the rever network final KML has been uh available here so now we’re going to download this KL

File so now let me select uh my file location so the download is being completed so now now let me open in Ark map so this is a Ark map we’re going to uh we’re going to add our uh River KML file into our Ark map so click this option called AR

Toolbox so AR toolbox is available here so AR tool box is available here so in that we’re going to click this option called conversion tools so in conversion tools we’re going to select from KL so we’re going to convert our kl to a layer so we have exported our River data as a

KML file format so now we’re going to convert it as a layer so click this tool KML to layer now choose your input KML file now let me select that so now let me select my Riv Network final and click open now let me select my output file

Location so now I have selected my output file location now click okay to convert to KML to a layer so now kl to layer has been completed so now go to the table of content section where you can able to visualize this poly line let me select the color So

Currently it is in white color pleas select this particular color and click okay so now we can able to visualize our uh can able to visualize our River data so for our study region we have selected an earth engine now let me show you that so we have selected this part of our

Study region and this part of the river data has been exported to our Google drive from our Google Drive so now we can able to visualize in our AR map so now let me add some study area so now we can able to visualize so here this is my part of my

Study area where the r data has been we have we going to extract it so in this way you can extract the river data from our Google Earth engine so now let me get back to our Earth engine so now in this video I have shown

You how to download a free flowing river data with Google Earth engine and I’ve shown you how to uh export our River data to our Google Drive and visualize in our Arc inveronment rgis environment so thanks for watching and please subscribe to our Channel and give us a like