Advanced Webinar: Forest Mapping and Monitoring with SAR Data

This is event is available for participation on an ongoing basis
Forest Mapping and Monitoring with SAR Data. Image: NASA

This advanced webinar series will introduce participants to:

1) SAR time series analysis of forest change using Google Earth Engine (GEE)

2) land cover classification with radar and optical data with GEE

3) mapping mangroves with SAR

4) forest stand height estimation with SAR





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12/05/2020 to 21/05/2020

Registration Deadline: 

Tue, 12/05/2020

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New recommeneded practice on drought monitoring published

UN-SPIDER published a new recommended practice in its Knowledge Portal outlining detailed step-by-step procedures to support drought monitoring. The practice was developed by researchers from the Federal University of Santa Maria in Brazil (UFSM).  The procedure has been used to elaborate drought-related maps for Brazil in recent years.


Publishing Date: 

Wed, 17/02/2016 - 16:42

Mapping global forests in unprecedented detail

Forest cover in South America viewed on the Geo-Wiki platform (Image: IIASA/Geo-Wiki/Google Earth)

The International Institute for Applied Systems Analysis (IIASA) Geo-Wiki team have produced new global forest maps combining citizen science with different data sources.

"The new maps rely on a combination of recent multisensory remote sensing data, statistics and crowdsourcing," said Dmitry Schepaschenko, the lead author of the study. "By combining different data sources, and incorporating the input of trained citizen scientists, we were able to produce new maps that are more accurate than any existing data source."

Publishing Date: 

Tue, 07/04/2015 - 07:47

Satellite mapping to analyse rainfall impact in Africa

Satellite image of Sub-Saharan Africa (Image: NASA)

A study carried out by the University of Leicester has shown the amount of rainfall many African areas receive has drastically changed in the last ten years. It is an essential factor for vegetation, which plays a vital role in African livelihoods.


Publishing Date: 

Mon, 09/03/2015 - 11:42

Data application of the month: Vegetation indices

MODIS-based 8-day NDVI product for Australia from 1-9 January 2014

What are vegetation indices used for?

Vegetation indices derived from Earth observation satellites are important for a wide range of applications such as vegetation monitoring, drought studies, agricultural activities, climate and hydrologic modeling. Vegetation monitoring plays an important role in drought early warning systems, which help to anticipate the risk of food crises at local and global scale.

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Data application of the month: Vegetation

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Proba-V: The new ESA satellite works around the clock

satellite image of the Black sea

Proba-V was launched in May 2014 and went operational in December. In the just two months of work, the ESA’s vegetation-monitoring Proba-V mini-satellite sent back over 5,000 images, 65 daily global maps and six 10-day global syntheses. 


Publishing Date: 

Wed, 19/02/2014 - 13:56

Satellite Images: Detecting Vegetation Health through Fluorescence

ESA potential satellite to map fluorescence

A potential new ESA satellite could use the fluorescence in plants to track health and productivity of vegetation worldwide. A likely candidate for the eighth ESA Earth Explorer, the Fluorescence Explorer (FLEX) would thus provide data for global maps of vegetation.

Fluorescence gives an indication of a plant's health as it is emitted during the photosynthetic process. Measuring fluorescence is however challenging. ESA elaborates: "In fact, for years it was a challenge to detect this relatively small glow outside of the laboratory and over agricultural fields and forests."

Publishing Date: 

Wed, 12/02/2014 - 11:03

Proba-V ready for operations

Proba-V is ready for operations

Launched on 7 May 2013, ESA’s Earth Observation satellite Proba-V has now completed the crucial commissioning phase and declared ready for its operational phase, providing global vegetation data for operational and scientific use. Designed to map land cover and vegetation development, the Proba-V miniaturised satellite tracks the entire planet every two days alerting authorities to crop failures, monitoring inland water resources and tracing the steady spread of deserts and deforestation.


Publishing Date: 

Tue, 10/12/2013 - 11:57

MEA: multi-product data exploitation system with global data coverage since 1978

The Multi-sensor Evolution Analysis (MEA) platform supports Earth Observation communities in loading, visualizing and analysing multi-dimensional datasets. Implemented in the framework of the European Space Agency ASIM project, MEA has been recently adopted in the European Commission EarthServer initiative as graphic user interface of the Climate Data Service.


Publishing Date: 

Tue, 19/11/2013 - 11:31

SPOT Vegetation: New portal for free satellite data

The portal makes available all VEGETATION products older than three months

The research organisation VITO has launched a new portal that makes accessible SPOT Vegetation data: All VEGETATION products older than three months are available free of charge.

Publishing Date: 

Wed, 16/10/2013 - 14:25


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