A comparative assessment of five precipitation products in the Saharan desert of Morocco : Sakia El Hamra basin case study
El-Alaouy, Nafia ; El Goumi, Said ; Laftouhi, Nour Eddine ; Lahrouni, Abderrahman ; Bouras, El Houssaine LU
; Amazirh, Abdelhakim
and Gouzrou, Abdeljalil
(2024)
In Environmental Monitoring and Assessment
196(8).
- Abstract
This study evaluates the performance of five satellite precipitation products (GPM IMERG, TRMM 3B42, ERA5, PERSIANN, and CHIRPS) compared to monthly observations from two weather stations (Laayoune and Essmara) over 2001–2017 using statistical metrics including correlation coefficient (CC) and mean square error (MSE). The results reveal notable differences between products. On a monthly timescale, GPM IMERG shows the best overall accuracy with a MSE of 16.8 mm/month. However, TRMM 3B42 exhibits higher temporal correlations with a CC around 0.83. The analysis provides insights into product capabilities and limitations for hydrological monitoring in data-sparse regions. Key findings include the superior performance of latest generation... (More)
This study evaluates the performance of five satellite precipitation products (GPM IMERG, TRMM 3B42, ERA5, PERSIANN, and CHIRPS) compared to monthly observations from two weather stations (Laayoune and Essmara) over 2001–2017 using statistical metrics including correlation coefficient (CC) and mean square error (MSE). The results reveal notable differences between products. On a monthly timescale, GPM IMERG shows the best overall accuracy with a MSE of 16.8 mm/month. However, TRMM 3B42 exhibits higher temporal correlations with a CC around 0.83. The analysis provides insights into product capabilities and limitations for hydrological monitoring in data-sparse regions. Key findings include the superior performance of latest generation datasets like GPM alongside biases requiring localized calibration. The study delivers an assessment framework to guide integration of multiple satellite estimates for enhanced precipitation quantification and hydroclimatic modeling in water-stressed environments.
(Less)
- author
- El-Alaouy, Nafia
; El Goumi, Said
; Laftouhi, Nour Eddine
; Lahrouni, Abderrahman
; Bouras, El Houssaine
LU
; Amazirh, Abdelhakim
and Gouzrou, Abdeljalil
- organization
- publishing date
- 2024-08
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Accuracy evaluation, Precipitation products, Saharan Morocco, Sakia El Hamra Basin
- in
- Environmental Monitoring and Assessment
- volume
- 196
- issue
- 8
- article number
- 734
- publisher
- Springer
- external identifiers
-
- pmid:39008154
- scopus:85198659353
- ISSN
- 0167-6369
- DOI
- 10.1007/s10661-024-12891-w
- language
- English
- LU publication?
- yes
- id
- 3dcba365-3204-4590-ade1-c6fb40de1447
- date added to LUP
- 2024-09-13 13:00:21
- date last changed
- 2024-09-13 13:01:01
@article{3dcba365-3204-4590-ade1-c6fb40de1447,
abstract = {{<p>This study evaluates the performance of five satellite precipitation products (GPM IMERG, TRMM 3B42, ERA5, PERSIANN, and CHIRPS) compared to monthly observations from two weather stations (Laayoune and Essmara) over 2001–2017 using statistical metrics including correlation coefficient (CC) and mean square error (MSE). The results reveal notable differences between products. On a monthly timescale, GPM IMERG shows the best overall accuracy with a MSE of 16.8 mm/month. However, TRMM 3B42 exhibits higher temporal correlations with a CC around 0.83. The analysis provides insights into product capabilities and limitations for hydrological monitoring in data-sparse regions. Key findings include the superior performance of latest generation datasets like GPM alongside biases requiring localized calibration. The study delivers an assessment framework to guide integration of multiple satellite estimates for enhanced precipitation quantification and hydroclimatic modeling in water-stressed environments.</p>}},
author = {{El-Alaouy, Nafia and El Goumi, Said and Laftouhi, Nour Eddine and Lahrouni, Abderrahman and Bouras, El Houssaine and Amazirh, Abdelhakim and Gouzrou, Abdeljalil}},
issn = {{0167-6369}},
keywords = {{Accuracy evaluation; Precipitation products; Saharan Morocco; Sakia El Hamra Basin}},
language = {{eng}},
number = {{8}},
publisher = {{Springer}},
series = {{Environmental Monitoring and Assessment}},
title = {{A comparative assessment of five precipitation products in the Saharan desert of Morocco : Sakia El Hamra basin case study}},
url = {{http://dx.doi.org/10.1007/s10661-024-12891-w}},
doi = {{10.1007/s10661-024-12891-w}},
volume = {{196}},
year = {{2024}},
}