English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Did ERA5 improve temperature and precipitation reanalysis over East Africa?

Gleixner, S., Demissie, T., Diro, G. T. (2020): Did ERA5 improve temperature and precipitation reanalysis over East Africa? - Atmosphere, 11, 9, 996.
https://doi.org/10.3390/atmos11090996

Item is

Files

show Files
hide Files
:
24533oa.pdf (Publisher version), 9MB
Name:
24533oa.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Gleixner, Stephanie1, Author              
Demissie, Teferi2, Author
Diro, Gulilat Tefera2, Author
Affiliations:
1Potsdam Institute for Climate Impact Research, ou_persistent13              
2External Organizations, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: Reanalysis products are often taken as an alternative solution to observational weather and climate data due to availability and accessibility problems, particularly in data-sparse regions such as Africa. Proper evaluation of their strengths and weaknesses, however, should not be overlooked. The aim of this study was to evaluate the performance of ERA5 reanalysis and to document the progress made compared to ERA-interim for the fields of near-surface temperature and precipitation over Africa. Results show that in ERA5 the climatological biases in temperature and precipitation are clearly reduced and the representation of inter-annual variability is improved over most of Africa. However, both reanalysis products performed less well in terms of capturing the observed long-term trends, despite a slightly better performance of ERA5 over ERA-interim. Further regional analysis over East Africa shows that the representation of the annual cycle of precipitation is substantially improved in ERA5 by reducing the wet bias during the rainy season. The spatial distribution of precipitation during extreme years is also better represented in ERA5. While ERA5 has improved much in comparison to its predecessor, there is still demand for improved products with even higher resolution and accuracy to satisfy impact-based studies, such as in agriculture and water resources. View Full-Text

Details

show
hide
Language(s):
 Dates: 2020-09-142020-09-17
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: MDB-ID: yes - 3037
PIKDOMAIN: RD2 - Climate Resilience
DOI: 10.3390/atmos11090996
Organisational keyword: RD2 - Climate Resilience
Research topic keyword: Atmosphere
Working Group: Hydroclimatic Risks
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Atmosphere
Source Genre: Journal, SCI, Scopus, p3, oa
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 11 (9) Sequence Number: 996 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/191024
Publisher: MDPI