Questions tagged [reanalysis]

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7
votes
2answers
3k views

Extracting Regional Data from ERA5

This is coming from a newcomer, so please be kind. As I delve into the world of meteo data and reanalysis for the first time, I found that acquiring weather data is a lengthy process, so I'm shouting ...
4
votes
1answer
208 views

Single-layer water content variables

In different reanalysis products (ERA 20C and NOAA/OAR/ESRL/PSD 20th Century daily data specifically) one can find the following variables: Total column water (ERA) Total column rain water (ERA) ...
6
votes
2answers
682 views

What is the meaning of step in ERA reanalysis data?

The webpage to download ERA data includes an option called "time" which is intuitive, but also an option called "step". I can't find an explanation of the meaning of this. It can't be a time step ...
3
votes
1answer
4k views

ERA Interim, how to handle total precipitation

I am trying to compute accumulated annual precipitation for year 2000-2001 based on the ERA Interim, but I am stuck with some unresolved questions: If I download the synoptic monthly means of "total ...
3
votes
1answer
648 views

How to calculate 3-hour flux values in ERA-Interim?

Referring to the post: https://www.myroms.org/forum/viewtopic.php?f=30&t=3003 I understood how to calculate the slhf and sshf for 03, 06, 09 and 12 time steps. But I have values for 00, 15, 18 ...
0
votes
1answer
54 views

Difference between NCEP's 20th Century daily Forecast and Analysis variables

NCEP's Twentieth Century Reanalysis (V2) provides daily variables from 1871/01/01 to 2012/12/31. Monolayer analysis variables are made available in a regular grid and forecast variables in a gaussian ...