SoDa products

Last update: Mar. 2018
 

ANNUAL SUBSCRIPTIONS

 

Poster of SoDa products =>

 

Value-added services - ON-DEMAND
 

 

HelioClim-3 Annual Subscriptions

Download examples of scripts to test all the automatic accesses to the data available on SoDa

Introduction

HelioClim-3 is a satellite-derived solar radiation database

Spatial resolution and coverage Temporal coverage Temporal resolution Radiation components

1 min up to 1 month from:

 HelioClim-3 Archives

Access to HelioClim-3 archives data from Feb. 2004 up to d-1 for version 4 and up to d-2 for version 5 - automatic access and via the SoDa website (optional)

  • "Standard" Annual Subscriptions to access HC3 time series
  • "Automatic-only"
  • "Per request"

NB: The HC3 version 5 service has been upgraded during the release of Oct. 2017 with the upgrade of the CAMS McClear model to version 3. Please note that the validation results are slightly different.

NB2: It is possible to use calibration parameters "on-the-fly" to HelioClim-3 request. Please contact us to ask your questions or to receive a quotation.


2004-2006
(free)
2004-current
HC3 Current Day

Access to HC3 version 4 time series for the current day

This service provide HelioClim-3 version 4 time series of satellite-derived solar radiation values for the current day (today). The values are from two different origins/models:

  1. Real time: updated as soon as a new image is available. If you launch the same request 15 min later, the values won't change,
  2. Short-term forecasts: a "persistence model" is applied on the latest irradiation values available to complete the time series until the end of the day. If you launch the same request 15 min later, the values will be modified.

NB: It is possible to use calibration parameters "on-the-fly" to HelioClim-3 request. Please contact us to ask your questions or to receive a quotation.

HC3 Maps in real time

HC3 maps in real time provides 15 min Global Horizontal Irradiation bitmap Maps or Ultra-violet Maps in TIFF format in real time (h-15 min) on a given area, and during daylight time from 3:00 TU to 20:45 UT.

HC3 Day+1

Access to HelioClim-3 version 4 Similarity Forecast data for tomorrow

NB: It is possible to use calibration parameters "on-the-fly" to HelioClim-3 request. Please contact us to ask your questions or to receive a quotation.

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Annual subscriptions to automatic access free resources

Download examples of scripts to test all the automatic accesses to the data available on SoDa

 MERRA

Automatic access to MERRA-2 meteorological data (1985 -> a month ago)

Purchase an annual subscription to automatically access MERRA-2 meteorological data, from 1980 up to about a month ago.


Launch free Web interface
GFS

Automatic access to GFS meteorological data (a month ago -> current day + 3)

Purchase an annual subscription to automatically access GFS forecasts 0.25° meteorological data, from about a month ago up to current day + 3 days


Launch free Web interface
HelioClim-1

Automatic access to HelioClim-1 (1985-2005)

Purchase an annual subscription to automatically access satellite-derived daily solar radiation time series from HelioClim-1 over the horizontal plane, from 1985 up to 2005.
NB: an unlimited automatic access to HelioClim-1 is included to all HelioClim-3 annual subscriptions.


Launch free Web interface

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Time series / Volume of data

HelioClim-3

Provision of one, a few, or of a large volume of HelioClim-3 version 5 time series

Please specify :

  • the latitude and longitude values with at least 4 digits after comma,
  • the HC3 version (default is version 5),
  • the time step,
  • the temporal coverage (from Feb. 2004 onwards),
  • the radiation component and plane orientation,
  • the output format (default is CSV, can be HDF5 for large volume)
  • If you need the Meteo data as well in the same output file (temperature, wind...)

NB: For more than 5 time series, it is usually more economic to opt for an annual subscription.

Other options:

  • Discard glitter
  • PVsyst or SAM compatible
  • Backtracking

Example of Backtracking: North-South horizontal one axis system, taking into account the following limitations:

  • Maximum tilt angle = +/- 60°
  • A "simple" backtracking option as follows:
    • At sunrise/sunset, tilt angle is +/- 20°
    • Tilt angle increase linearly from 20 to  60° when the sun elevation angle moves from 0 to 30° in the morning  and decreases from 60 to 20° when the sun elevation angle moves  from 30 to 0° in the evening

 

Zip compressed sample  HC3v5Meteo time series over Carpentras

McClear fix-tilted

Provision of one, a few, or of a large volume of McClear clear sky radiation values over a fix-tilted surface

 Ask for time series in CSV format of McClear clear sky values containing all the radiation components over a fix-tilted and the horizontal plane. It can be used as an envelop for monitoring applications. Please specify :

  • the latitude and longitude values with at least 4 digits after comma,
  • the time step,
  • the temporal coverage (from Jan. 2004 onwards),
  • the plane orientation

NB: McClear radiation values over a horizontal plane and DNI are available for free via this Web interface within the framework of the CAMS project. A small fee is applied to computed the values over a fix-tilted plane. Prices on request.

Zip compressed sample  HC3v5Meteo time series over Carpentras

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Typical Meteorological Year

TMY provision

Provision of one, a few, or a large number of Typical Meteorological Years (pessimistic P90 or typical P50 scenario)

TMYs are generated from the satellite-derived solar radiation database HelioClim-3 and from the MERRA-2 meteorological parameters. Please specify:

  • the time step of data,
  • the output format (PVsyst or SAM)
  • the solar technology for which the TMY will be used for (to define our "driver")
  • precise as well if you wish to receive the long term HelioClim-3 time series for this location
Sample reports and data
  • Example of TMY over the city of Carpentras
  • Example of report of uncertainty: positionning of the TMY compared to the long term HC3 time series

TMY report

Report of uncertainty

P50 PVsyst
P50 TMY3

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Calibration of long term HC3 time series using in-situ measurements

In-situ measurements

An expertise is provided to offer you a better knowledge on the quality of your in-situ measurements. A NDA is signed. An example of Quality Check report is included in the Calibration report (see below).

Please also try our SoDa online interface to check the quality of your measurements =>

 

Calibration

This service delivers a complete report on the quality (QC, which stands for Quality Check) of the in-situ measurements, together with the calibration results of the long term HelioClim-3 (version 5) time series with the short term time series of in-situ measurements.

Quality check and calibration result report over the city of Carpentras =>

Calibration report

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Map service

HC3 maps on demand

When you wish to order such a map, please specify the following elements:

  • Database: HelioClim-3 version 5
  • Provided format: 16 bits GeoTIFF, [option: 8 bits version compatible with Google Earth]
  • Specify: Global Horizontal (GHI), Diffuse Horizontal (DHI), Direct Normal (DNI), Global Normal (GNI) or global Tilted Irradiation (GTI) maps
  • Specify: Yearly and monthly averages, monthly maps, ...
  • Specify: Calibrated maps (or not) using ground station measurement(s)
  • Specify: taking into account (or not) the shadowing effect of the far horizon (SRTM)
  • Leadtime: approx. 1-2 weeks
Free maps
Annual subscription to HC3 Maps in real time Please refer to the HC3 Maps service in real time section
Maps of meteo variables Temperatures (corrected with height), Wind intensities... from MERRA-2

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Complete the holes of your in-situ measurements

Data completion

Data completion Service

The routines are able to complete any time series of solar radiation values (satellite-derived or in-situ measurements), as well as the meteorological variables time series containing holes. Please, contact us for a quotation.

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Analysis of dust deposition / Soiling

Dust / soiling analysis

Provision of Dust / Soiling analysis report

Please contact us to receive a quotation. Find on the right hand side an example of report on the site of Hafr al Batin (KSA).

Example of Dust analysis report

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Let's design together a Solar Training fitted for your needs

Solar Training

Example of content:

  • Basics
  • In-situ measurements
  • Bankable data
  • HelioClim-3, satellite-derived data in general
  • QGIS
  • Matlab pratical field


Take a look to the Solar Training 2018 program

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Other services

  • Contact us to retrieve for free in a CSV file the pixel locations (centers or corners) of the Meteosat Second Generation satellite for the area of your choice.
  • APOLLO-derived cloud statistics service: Test the service here
  • Provision of report to demonstrate that the month of July 2014 underestimates the radiation in the past 11 years. Example of report, Valence, France

New services

The level of achievement, performance, and leadtime for each service is envisaged. For instance, the HC3 Similarity Forecast service and the dust service should be improved in the future.

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