Log in
Loading…
ECMWF Confluence Wiki
  • Spaces
  • Hit enter to search
  • Help
    • Online Help
    • Keyboard Shortcuts
    • Feed Builder
    • What’s new
    • Available Gadgets
    • About Confluence
  • Log in

Forecast User
Forecast User
  • Pages
  • Blog

Space shortcuts

  • Forecast charts
  • Forecast evaluation
  • Catalogue real-time products
  • ECMWF Forecast User Guide
  • Forecast User Forum

Page tree

Browse pages
    • Attachments (0)
    • Page History
    • Resolved comments
    • Page Information
    • View in Hierarchy
    • View Source
    • Export to PDF
    • Export to Word
    • Hide Inline Comments
  1. Pages
  2. Forecast User Portal
  • Jira links

Meteorological FAQs

  • Created by Helene Blanchonnet, last modified by Helen Setchell on Feb 23, 2023

  • Are the t=0 forecast fields the same as the analysis fields?
  • How are data interpolated/transformed to a lower resolution grid?
  • How are Large Scale precipitation, Convective Precipitation and Snowfall defined in the ECMWF model?
  • How are low, medium and high cloud cover defined?
  • How can evaporation have both positive and negative values?
  • How can the Geopotential height in metres be calculated?
  • How to access the archived forecast data of the 06z and 18z HRES/ENS known as the High Frequency Products?
  • Is the field surface pressure available on both model and pressure levels?
  • Many fields have seconds in their units e.g. precipitation and radiation fields. How can instantaneous values be calculated?
  • Visibility Parameter
  • What are 2D wave spectra?
  • What are the definitions of the radiation fields?
  • What are the units of the fields?
  • What is the 4DVAR analysis procedure?
  • What is the direction convention for fields such as radiation and precipitation?
  • What is the direction convention for the U and V components of winds?
  • What is the direction convention for wave fields?
  • What is the land-sea mask (LSM)?
  • Where can I find the definitions of the Gaussian grids?
  • Why does accumulated precipitation has sometimes negative values?
  • Why does the Ensembles forecast not account for glaciers correctly?

  • owned-single-by-adhs
Overview
Content Tools
  • Powered by Atlassian Confluence 8.5.20 (confluence-0: 54678722)
  • Printed by Atlassian Confluence 8.5.20
  • Report a bug
  • Atlassian News
Atlassian
{"serverDuration": 140, "requestCorrelationId": "a32c04b27fe4c1d1"}