What is reanalysis climate data?

What is reanalysis climate data?

Reanalysis data provide the most complete picture currently possible of past weather and climate. They are a blend of observations with past short-range weather forecasts rerun with modern weather forecasting models. They are globally complete and consistent in time and are sometimes referred to as ‘maps without gaps’.

What is reanalysis data set?

Reanalysis datasets are created by assimilating (“inputting”) climate observations using the same climate model throughout the entire reanalysis period in order to reduce the affects of modeling changes on climate statistics.

What is a reanalysis model?

Reanalysis a systematic approach to produce data sets for climate monitoring and research. Reanalyses are created via an unchanging (“frozen”) data assimilation scheme and model(s) which ingest all available observations every 6-12 hours over the period being analyzed.

What is data reanalysis in research?

1. A continually updating gridded data set that represents the state of the atmosphere, incorporating observations and outputs of numerical weather prediction models from past to present-day.

What is ERA5 reanalysis data?

ERA5 replaces the ERA-Interim reanalysis. Reanalysis combines model data with observations from across the world into a globally complete and consistent dataset using the laws of physics.

What is a reanalysis product?

Reanalysis products are used extensively in climate research and services, including for monitoring and comparing current climate conditions with those of the past, identifying the causes of climate variations and change, and preparing climate predictions.

What is reanalysis in linguistics?

Reanalysis (linguistics) or folk etymology, change in a word or phrase resulting from the replacement of an unfamiliar form by a more familiar one. Rebracketing, a process where a word originally derived from one source is broken down into a different set of factors.

What is the resolution of ERA5 data?

ERA5, the successor to ERA-Interim, provides global, hourly estimates of atmospheric variables, at a horizontal resolution of 31 km and 137 vertical levels from the surface to 0.01 hPa. Produced by ECMWF, ERA5 presently extends back to 1979; it will ultimately be extended back to 1950.

How can I download merra data?

MERRA-2 data downloading services:

  1. Download Method=>Get Original Files: to download the unmodified original files.
  2. Download Method=> Get File Subsets using OPeNDAP: to download geospatially subsetted retions of selected variables in netCDF or ASCII format.

What is reanalysis in morphology?

Morphological reanalysis is the treatment of some set phrase as a single morpheme for purposes of stress assignment, pluralization, etc. For instance, “passer by” is semantically transparent, and theoretically composed of two morphemes.

What is creative Respelling?

Answer: Creative respelling. Sometimes words are formed by simply changing the spelling of a word that the speaker wants to relate to the new word. Product names often involve creative respelling, such as Mr. Kleen.

What is ERA5 reanalysis?

ERA5 is the fifth generation ECMWF atmospheric reanalysis of the global climate covering the period from January 1950 to present. ERA5 is produced by the Copernicus Climate Change Service (C3S) at ECMWF. ERA5 provides hourly estimates of a large number of atmospheric, land and oceanic climate variables.