Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: Confirmed.

...

Info
iconfalse
titleTable of Contents

Table of Contents
maxLevel4

Easy Heading Macro

General

Description

Datasets of (total) precipitation (TP) are available for three streams:

...

Total Precipitation (TP)
Precipitation is measured using a rain gauge. The height of this gauge above the ground varies from country to country, and the design of the gauge itself may also vary. Where snowfall is a dominant fraction of the precipitation in the cold months (e.g. Russia) the gauge may be 1-3 metres above the ground and will be protected by circular hedges around it, to try to reduce wind speeds near the gauge so snowflakes can fall in.

Contact

copernicus-support@ecmwf.int

Dataset coverage

Geographic area

...

Historical: ERA5

Seasonal Forecasts:

  1. ECMWF seasonal forecast system 5 technical description:
  2. Météo-France seasonal forecast system 7 technical description:
  3. Met Office

Projections: original data come from CORDEX simulations available via the ESGF portal.

...

Historical: original gridded data come from the ERA5 Reanalysis

Seasonal Forecasts: original data is available from the C3S Climate Data Store. See here for further details of the seasonal forecast models used.

Projections: original data come from CORDEX simulations available via the ESGF portal.

...

Historical: ERA5 data have been compared to previously used ERA-Interim for consistency.

Seasonal Forecasts: forecast skill, such as measured by anomaly correlation, is performed and will be provided via the C3S Energy demonstrator. Maps representing the bias for different time- periods for each system are also provided, as well as graphs comparing hindcast dataset before
and after bias-correction.

Projections: a "health check" procedure was applied on bias adjusted data to verify:

  • that the bias adjusted projections had similar seasonal means over the reference periods; by mapping the absolute differences, it was found that they are an order of
    magnitude smaller than the variables variations. 
  •  that the changes between end of current and past centuries were similar with or without bias adjustment. We found that while the general patterns were quite similar, changes amplitudes can be modified by the CDFt method. 


Info
iconfalse

This document has been produced in the context of the Copernicus Climate Change Service (C3S).

The activities leading to these results have been contracted by the European Centre for Medium-Range Weather Forecasts, operator of C3S on behalf of the European Union (Delegation agreement Agreement signed on 11/11/2014 and Contribution Agreement signed on 22/07/2021). All information in this document is provided "as is" and no guarantee or warranty is given that the information is fit for any particular purpose.

The users thereof use the information at their sole risk and liability. For the avoidance of all doubt , the European Commission and the European Centre for Medium - Range Weather Forecasts have no liability in respect of this document, which is merely representing the author's view.

Related articles

Content by Label
showLabelsfalse
max5
spacesCKB
showSpacefalse
sortmodified
reversetrue
typepage
cqllabel = "sis" and type = "page" and space = "CKB"
labels era-interim