Global Ecodash
Welcome to the SERVIR Global Ecodash
We develop a vegetation monitoring framework based on the BACI (Before-After, Control-Impact) design and cloud based-computing which is applicable at a planetary scale. Our approach utilizes Google Earth, a state-of-the-art cloud computing platform. For users, a web-based application named EcoDash is developed which maps vegetation using Enhanced Vegetation Index (EVI) from Moderate Resolution Imaging Spectroradiometer (MODIS) products from both Terra and Aqua sensors available from 2000 and 2002 respectively. To detect change in vegetation we define an EVI anomaly referenced to a baseline period and draw results at a planetary scale using the web-based application finding various countries showing improvement or degradation from a user-defined baseline period.

This is the Surface Water Tool Demo!

Sadly, the demo is not implemented yet. Coming soon!
We will first go over some of the basics of the application, before we dive in a little deeper.

All info panels are toggled on/off with their 'i' button.
Turn the general information panel off so that we can see a bit more of the map.
Then, click 'Next' to go to the next step of the demo.
The map shown is a standard Google Maps instance with most of its basic functionality.
You can zoom in/out with the buttons in the bottom right corner, or with the scroll wheel of your mouse.
You can toggle different Google Maps displays with the buttons in the top left corner.

The data generated by the algorithm is visualized on top of this map.
It displays permanent and temporary water in different shades of blue,
as shown in the legend.
As a user of this tool, you can specify yourself for which time period you want to visualize the data.
This will change the input of the algorithm, and make it carry out a new run in Earth Engine.
Once finished, the new results will be displayed on the map. Because of this on-the-fly calculation, it might take some time for the results to load.

Try it out yourself by changing the time period.
Congratulations! You've reached the end of the demo!

Enter or select a time period to perform a new calculation.
Check out the documentation to learn more about this tool.

Legend: Legend

   Decrease                          Stable                          Increase

Controls:

Before Period:
-
After Period:
-
Control Region:
Intervention Region:


Export Region:

Filename:
Exporting results is enabled once you have selected a region (or completed drawing a polygon) on the map. This is done by first choosing a region selection method above. This will either load a new map layer from which you can select one ore more areas, or it will allow you to draw a polygon on the map yourself. Since this accesses the same database as the other map layers it is advised to wait for those to load before making a region selection.

You can select multiple areas (up to a maximum of four) by holding down the Ctrl key. Pressing the Esc key will reset the region selection.

Optionally, a filename for the to-be-downloaded data can be entered. If omitted, a default filename will be constructed using the selected time period.

Clicking the Export button reveals a panel on the top right of the screen. Download links will be shown there once they are ready for use. Map (water) layers are downloaded as zipped GeoTIFF files (0=no water, 1=temporary water, 2=permanent water). Metadata with input parameters can be downloaded directly as a CSV file.

NOTE: Due to limitations with the current implementation of the download option, there is a constraint on the size of the area that can be downloaded. You will see a warning if the area you have selected or drawn is too big. Near the limit there is a possibility that you receive a corrupted zip file. In that case, simply delete it and retry the download. We are working on a better implementation of the download option, which will remove all area constraints and other issues.