Assessment of the capability of modern reanalyses to simulate precipitation in warm months using adjusted radar precipitation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F22%3A00557892" target="_blank" >RIV/68378289:_____/22:00557892 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2214581822001343" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214581822001343</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ejrh.2022.101121" target="_blank" >10.1016/j.ejrh.2022.101121</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of the capability of modern reanalyses to simulate precipitation in warm months using adjusted radar precipitation

Popis výsledku v původním jazyce

Study region - Central EuropenStudy focus - Precipitation fields from reanalyses have been widely used for hydrological applications, meteorological extreme analyses or climatological research. Modern reanalyses provide all characteristics in regular grids with high resolutions and thus can substitute for gridded in situ, radar and satellite observations. Here, we assess the ability of three modern reanalyses with different spatial resolutions and different rates of assimilation to reproduce precipitation in Central Europe. Two global (ERA-5 and ERA-5 Land) and one regional (Mescan-Surfex) reanalysis products are evaluated against adjusted radar-derived precipitation totals in the warm parts of the 17-year period.nNew hydrological insights for the regionnA comparison of daily precipitation totals generally shows good agreement with the observations in all reanalyses. However, the detailed analysis of climatological indices shows a general overestimation of precipitation sums and the number of wet days in all tested months but an underestimation of high precipitation on monthly or seasonal sums and a lower occurrence of days with sums above 10 mm. Mescan-Surfex seems to be the most accurate of all three reanalyses, with the exception of the years between 2009 and 2012, with very low precipitation in southern Bohemia. The largest differences between radar and reanalysis precipitation characteristics are detected in the summer months when convective precipitation prevails. The obtained results can be used for further applications in hydrological modelling.

Název v anglickém jazyce

Assessment of the capability of modern reanalyses to simulate precipitation in warm months using adjusted radar precipitation

Popis výsledku anglicky

Study region - Central EuropenStudy focus - Precipitation fields from reanalyses have been widely used for hydrological applications, meteorological extreme analyses or climatological research. Modern reanalyses provide all characteristics in regular grids with high resolutions and thus can substitute for gridded in situ, radar and satellite observations. Here, we assess the ability of three modern reanalyses with different spatial resolutions and different rates of assimilation to reproduce precipitation in Central Europe. Two global (ERA-5 and ERA-5 Land) and one regional (Mescan-Surfex) reanalysis products are evaluated against adjusted radar-derived precipitation totals in the warm parts of the 17-year period.nNew hydrological insights for the regionnA comparison of daily precipitation totals generally shows good agreement with the observations in all reanalyses. However, the detailed analysis of climatological indices shows a general overestimation of precipitation sums and the number of wet days in all tested months but an underestimation of high precipitation on monthly or seasonal sums and a lower occurrence of days with sums above 10 mm. Mescan-Surfex seems to be the most accurate of all three reanalyses, with the exception of the years between 2009 and 2012, with very low precipitation in southern Bohemia. The largest differences between radar and reanalysis precipitation characteristics are detected in the summer months when convective precipitation prevails. The obtained results can be used for further applications in hydrological modelling.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Hydrology: Regional Studies

ISSN

2214-5818

e-ISSN

2214-5818

Svazek periodika

42

Číslo periodika v rámci svazku

Aug.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

20

Strana od-do

101121

Kód UT WoS článku

000822696500005

EID výsledku v databázi Scopus

2-s2.0-85131399795