About the Sustainable Landscapes Ecosystem Monitoring Tool

Maintaining ecological stability and/or biological productivity over a large area is a common goal of landscape scale policy or management interventions. The development of this tool was prompted by a need expressed by project managers to track the success of their efforts in this context. In the current version, the focus is on the Enhanced Vegetation Index (EVI) calculated using MODIS multispectral data with a pixel resolution of 250 x 250 m. EVI is a measure of relative biomass particularly suited to high-biomass areas of the globe.

The tool is made possible by connecting the user interface with Google Earth Engine, a cloud computing platform that links extensive data archives with substantial processing power. This architecture makes formerly heavy analyses time and cost effective for users. The comparison of broad-scale biological productivity in an area from one period to another has applications beyond projects seeking to monitor the effects of their interventions. This tool can also potentially be used to provide insight into changes related to climate change, urban expansion, infrastructure development, and other impacts.

Beyond the comparison of EVI, the design of this tool reflects a more general "proof of concept" of an application that is particularly well-served by large scale remotely sensed data: the comparison of conditions in a large area from one time period with another using calculations based on remotely sensed gridded data. In its general architecture, the tool can support the analysis of any type of gridded data and future iterations will allow users to select from a number of possible datasets.


Development and Acknowledgment

This tool was developed by SERVIR-Mekong in close consultation with the Vietnam Forests and Deltas project and their partners in Vietnam, in particular the Ministry of Agriculture and Rural Development and constituent agencies.

The Python code for Google Earth Engine was developed by Winrock International in partnership with members of the Google Earth Engine team.

The user interface was developed by Spatial Informatics Group (SIG) using Clojurescript, Google Closure, and the Google App Engine SDK.

Sustainable Landscapes Ecosystem Monitoring Tool (EcoDash)

What is it?

This tool might best be thought of as a "landscape calculator". With this tool you can explore if the landscape has been degraded in the past years or maybe getting greener.

Why this tool?

We build this tool for policy makers and project managers. They were looking for simple ways to evaluate the impact of interventions and compare it with other areas that haven't undergone any interventions.

How to use it?

1. Select a baseline period. This is the period before you started the intervention or project.

2. Select the study period. This is the period of the project or intervention.

3. Update the map

Congratulations! Now you have map with degraded areas in red and greener areas in green.

Time to select an area!

4. Do you want to compare Countries, provinces or draw your own area of interest?

5. Now click a polygon or draw your own polygon.

6. Time to review the result!

Don't forget to give us feedback!

EcoDash is a collaborative effort between its developers and its community of users. We welcome suggestions for improvements on our Githubissues page.

about

Select the timespan for the baseline here. With the baseline we determine the initial conditions.

about

Select the timespan for the study period here. This is the period over which you want to do the analysis.

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Do you want to do the analysis for a administrative unit or draw your own polygon?

You can upload your own polygon in KML format.

Δ EVI

legend Increase
Stable
Decrease

opacity

EcoDash Controls

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Select a time period for the baseline EVI

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Select a time period to measure ∆EVI

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Choose a polygon selection method

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Click a polygon on the map or draw your own

Selection:

Step 6: Review the historical ∆EVI in the selection

Download the data