Difference between revisions of "Heliosat Solar"
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* '''Coverage:''' The dataset has an extend +- 65 degrees in both latetidues and longitudes. In windPRO, offshore coverage is at a distance of approximately 300 km from any known coastlines. | * '''Coverage:''' The dataset has an extend +- 65 degrees in both latetidues and longitudes. In windPRO, offshore coverage is at a distance of approximately 300 km from any known coastlines. | ||
* '''Period:''' 20+ years. The EMD databases will hold data back to 1999. | * '''Period:''' 20+ years. The EMD databases will hold data back to 1999. | ||
| + | |||
| + | == Data Parameters == | ||
| + | The windPRO dataset only contains parameters needed for solar calculations. The parameters are listed below. | ||
| + | |||
| + | <center> | ||
| + | {| class="wikitable" | ||
| + | |+ align="bottom"|Table: Overview of the Heliosat Solar parameters. | ||
| + | ! Parameter | ||
| + | ! Unit | ||
| + | ! Description | ||
| + | |- | ||
| + | | time | ||
| + | | | ||
| + | | UTC time stamp (half hourly) | ||
| + | |- | ||
| + | | SIS | ||
| + | | w/m2 | ||
| + | | Surface Incoming Shortwave Irradiance | ||
| + | |- | ||
| + | | SID | ||
| + | | w/m2 | ||
| + | | Surface Irradiance Direct | ||
| + | |} | ||
| + | </center> | ||
| + | |||
| + | All parameters are instantaneous. The two parameters SIS and SID can be used to calculate the diffuse radiation as SIS-SID = diffuse radiation. | ||
Revision as of 11:32, 16 March 2020
Introduction
"Heliosat Solar" is a satelite based surface radiation dataset produced and delivered by CM SAF (Satellite Application Facility on Climate Monitoring). The windPRO dataset is composed of two different datasets, namely:
- Surface Radiation Data Set - Heliosat (SARAH) - Edition 2.1 : This dataset covers the period from 1999-01-01 to 2017-12-31
- ICDR SEVIRI Radiation - based on SARAH-2 methods : This dataset is an operational dataset that covers the period from 2018-01-01 to present
The Validation report of the ICDR dataset concludes that there is a resonable consistency between the two datasets.
Dataset Overview
- Content:: Surface radition parameters to be used in Solar calculations in windPRO
- Spatial Resolution: The dataset is available on a regular geographical (lat/lon) grid at 0.05x0.05 resolution (around 5 km).
- Temporal Resolution: 30 minute values.
- Coverage: The dataset has an extend +- 65 degrees in both latetidues and longitudes. In windPRO, offshore coverage is at a distance of approximately 300 km from any known coastlines.
- Period: 20+ years. The EMD databases will hold data back to 1999.
Data Parameters
The windPRO dataset only contains parameters needed for solar calculations. The parameters are listed below.
| Parameter | Unit | Description |
|---|---|---|
| time | UTC time stamp (half hourly) | |
| SIS | w/m2 | Surface Incoming Shortwave Irradiance |
| SID | w/m2 | Surface Irradiance Direct |
All parameters are instantaneous. The two parameters SIS and SID can be used to calculate the diffuse radiation as SIS-SID = diffuse radiation.