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Getting Started
Abbreviations
| Abbreviation | Description |
|---|---|
| AET | Actual Evapotranspiration |
| AgERA5 | Agrometeorological indicators from ERA5 |
| CHIRPS | Climate Hazards Group InfraRed Precipitation with Station data |
| DEM | Digital Elevation Model |
| DMP | Dry Matter Production |
| E | Evaporation |
| ECMWF | European Centre for Medium-Range Weather Forecasts |
| EOS | End of Season |
| ERA5 | fifth generation ECMWF Re-Analysis |
| ESU | Elementary Surface Area |
| ET | Evapotranspiration |
| ETIa | Actual EvapoTranspiration and Interception |
| FAO | Food and Agriculture Organization of the United Nations |
| fAPAR | Fraction Absorbed Photosynthetically Active Radiation |
| FRAME | Consortium consisting of eLEAF, VITO, ITC and the Waterwatch Foundation |
| GBWP | Gross Biomass Water Productivity |
| GEOS-5 | Goddard Earth Observing System Model, Version 5 |
| I | Interception |
| IFS | Integrated Forecast System |
| LAI | Leaf Area Index |
| LCC | Land Cover Classification |
| LST | Land Surface Temperature |
| LUE | Light Use efficiency |
| MODIS | MODerate-resolution Imaging Spectroradiometer |
| MOS | Maximum of Season |
| MS | Multi-Spectral |
| MSG | Meteosat Second Generation |
| MTG | Meteosat Third Generation |
| NBWP | Net Biomass Water Productivity |
| NDVI | Normalised Difference Vegetation Index |
| NIR | Near Infrared |
| NPP | Net Primary Production |
| NRT | Near Real Time |
| PCP | Precipitation |
| PHE | Phenology |
| RET | Reference Evapotranspiration |
| ROI | Region of Interest |
| SLC | Scan Line Corrector (on Landsat 7) |
| RSM | Relative Soil Moisture |
| SMC | Soil Moisture Content |
| SMS | Soil Moisture Stress |
| SOS | Start of Season |
| T | Transpiration |
| TBP | Total Biomass Production |
| TIR | Thermal Infrared |
| TOC | Top of Canopy |
| UTM | Universal Transverse Mercator |
| VI | Vegetation Index |
| VIIRS | Visible Infrared Imaging Radiometer Suite |
| VNIR | Visible and Near Infrared |
| WaPOR | FAO portal to monitor Water Productivity through Open access of Remotely sensed derived data |
| WP | Water Productivity |
Definitions
The term data is frequently used throughout this document. The following definitions explain the different uses of the term within WaPOR:
- Data (file): raster data in GeoTIFF format, containing coordinate reference system (CRS) information in line with the OGC and ISO TC211 specifications.
- Data component: A time series of similarly structured data files containing one specific type of information (e.g. Evaporation). Each individual data file contains information on the data component for a different time period.
- Dataset: A set of related data components which cover the same Region of Interest (ROI) and time period (though not necessarily with the same temporal and spatial resolution). For example, the continental dataset (Level 2) contains, amongst others, Evaporation, Transpiration and Net Primary Productivity data components.
The term data is also used in relation to external sources, e.g. data used as input to produce or to validate the different data components. The following data sources can be distinguished:
- Regularly updated data includes satellite imagery and meteorological data, used for the production of all data components.
- Static data, such as elevation and soil type, that do not change within the time period of the datasets.
Reference data refers to ground or field observations or measurements which are used in most cases to validate the data components. Reference data is also used for the production of the land cover data component.
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