What is New?

Welcome to IWMIDSP-gateway to all IWMI RS/GIS data and Knowledge. There are many advances from the earlier ß release in June. The advances include:

1.  IWMIDSP Phase III Release Note.

2.  Metadata.

3.  Dummies Guide to Search for Satellite Images.

4.  IWMI Philosophy and Strategy for Spatial Data.

5.  Impact Assessment Report.

6.  Tsunami Satellite Sensor Data Catalogue (TSSDC).

7.  Intellectual Property (IP) Rights

The IWMIDSP data is now coded in 3 colors:

Green: Free access to anyone in the world. Roughly, 95 % of our data falls in this category.

Blue: Restricted access to public- access to IWMI users only. For non-IWMI users, a message will appear: "Please contact the IWMIDSP administrator to see whether you can have access to this data". Roughly, 4 percent of our data falls in this category.

Red: Highly restricted data with access only to justified requesters. Roughly, 1 percent of our data falls in this category.

We have also included an access agreement. We are thankful to Ms. Guat-Hong Teh, Intern (Data Sharing and IPRs) for advising us on the IP rights and for providing the access rights document.

8.  Ground truth data of the World

Ground truth data of the World is a living dynamic project on warehousing field-plot data through IWMIDSP. Data consists of geographic coordinates (lat/long, WGS84), land use categories, land cover percentages, crop types, cropping pattern, cropping intensity, digital photos, and other information on natural resources and environments of many parts of the World. These are high quality field-plot data made available as a global public good and made freely accessible and downloadable to anyone in the World. These data were collected over several years, in different projects, by numerous researchers from around the World.

Figure 1. Ground truth data points in red. Field-plot data from over 2000 locations are made available.

9.  New river basins, Nations and Regions with substantial data in IWMIDSP

As you will see from the drop-down menu, we now have numerous new river basins, Nations and regions for which data has been added in IWMIDSP. Significant data has been added to: River basins (Limpopo, Aral-Sea-Basin, Mahaweli-SystemC, Malawi, Huruluweva, Deduru-Oya), Nations (Cambodia,China,East-Timor,Ghana, India, Iran, Israel,Myanmar, Sri-Lanka, Syria, Turkey, Vietnam, etc), regions (South-Asia), and the world.

10.  Regional datasets contributions from IWMI Regional offices

We are getting IWMI regional offices also participate and contribute to IWMIDSP data. In this regard we have made a beginning with Ghana data (Thanks to Mr. Falconor) and Aral Sea data (Thanks to Dr. Iskandar Abdullev and Dr. Platanov). These data include Landsat ETM+, SRTM dem, LULC, Population, River basins, Road network, Stream-network, etc…

11.  New Mega data sets

Several new exciting mega data sets have been added to existing IWMIDSP database.

At Global level multiscale 0.01-0.1 degree (1 to 10 kilometer resolution) mega file containing 111 spatial layers that include surface Reflectance, NDVI, Tree cover, Precipitation, and 1-km DEM has been added. This is the base dataset for Global Irrigated Area Mapping. The strength of such a dataset will be its application to multitude of applications and will form a baseline dataset for the world.

Figure 2. Global multi-scale, multi-sensor dataset consisting of AVHRR time series, SPOT time series, 1-km DEM, 40-year precipitation, and 1-km tree cover. This was the base data layer used in IWMI’s ongoing Global irrigated area mapping.

At regional level, Indian Sub continental MODIS 500m, mega-file (Reflectance every 8-day, NDVI every 8-day, and monthly maximum value composite) for period 2001-2003. This is a base data set for the regional level irrigated area mapping at 500m pixel.

Figure 3. Subcontinent MODIS 500m mega file for 2001 to 2003; a. every 8-day reflectance data (left image) and b. Monthly Maximum Value Composites (right image). These are the base datasets used in the ongoing regional irrigated area mapping.

12.  Online data request form

Now user’s can request data using online data request form.

13.  Upcoming

A Global Irrigated Area Map of the World @ the End of the Last Millennium: ß release!.