Evaluation of NASA POWER and ERA5-Land for estimating tropical precipitation and temperature extremes

Tan, Mou Leong; Armanuos, Asaad M.; Ahmadianfar, Iman; Demir, Vahdettin; Heddam, Salim; Al-Areeq, Ahmed M.; Abba, S.I.; Halder, Bijay; Kilinç, Hüseyin Çağan; Yaseen‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬, Zaher Mundher

doi:10.1016/j.jhydrol.2023.129940

Cited by 19 publications

(10 citation statements)

References 64 publications

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“…The results demonstrated ERA5's strong capacity to replicate a variety of variables across all stations, indicating the reliable performance of ERA5 in PM. Besides, et al 80 evaluated ERA5 over the Kelantan River Basin (North Malaysia) and concluded its ability to capture the climatological patterns of temperature variables reasonably. The time series of ERA5 global surface temperature anomalies show that temperatures were relatively stable from 1950 until the late 1970s 81 .…”

Section: Discussionmentioning

confidence: 99%

Heatwaves in Peninsular Malaysia: a spatiotemporal analysis

Muhammad,

Hamed,

Harun

et al. 2024

Sci Rep

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One of the direct and unavoidable consequences of global warming-induced rising temperatures is the more recurrent and severe heatwaves. In recent years, even countries like Malaysia seldom had some mild to severe heatwaves. As the Earth's average temperature continues to rise, heatwaves in Malaysia will undoubtedly worsen in the future. It is crucial to characterize and monitor heat events across time to effectively prepare for and implement preventative actions to lessen heatwave's social and economic effects. This study proposes heatwave-related indices that take into account both daily maximum (Tmax) and daily lowest (Tmin) temperatures to evaluate shifts in heatwave features in Peninsular Malaysia (PM). Daily ERA5 temperature dataset with a geographical resolution of 0.25° for the period 1950–2022 was used to analyze the changes in the frequency and severity of heat waves across PM, while the LandScan gridded population data from 2000 to 2020 was used to calculate the affected population to the heatwaves. This study also utilized Sen's slope for trend analysis of heatwave characteristics, which separates multi-decadal oscillatory fluctuations from secular trends. The findings demonstrated that the geographical pattern of heatwaves in PM could be reconstructed if daily Tmax is more than the 95th percentile for 3 or more days. The data indicated that the southwest was more prone to severe heatwaves. The PM experienced more heatwaves after 2000 than before. Overall, the heatwave-affected area in PM has increased by 8.98 km2/decade and its duration by 1.54 days/decade. The highest population affected was located in the central south region of PM. These findings provide valuable insights into the heatwaves pattern and impact.

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Section: Discussionmentioning

confidence: 99%

Heatwaves in Peninsular Malaysia: a spatiotemporal analysis

Muhammad,

Hamed,

Harun

et al. 2024

Sci Rep

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“…In contrast, NASA POWER is the only GPP that showed a decreasing linear trend of SPI over Yobe State. Similarly, NASA POWER also showed some biases in the computations of extreme precipitation in other tropical regions (Tan et al 2023), i.e., underestimations of days with little or no precipitation, ranging from 0 to 1 mm/day, and days with intense precipitation, over 50 mm/day.…”

Section: Drought Assessmentmentioning

confidence: 91%

“…The organization has consistently provided extensive support for satellite systems and research initiatives that provide crucial data for the analysis of climate and climatic phenomena under its Earth Science research program. The NASA POWER platform provides a web interface that allows users to conveniently access a diverse range of global climate data (Tan et al 2023). These data are derived from the assimilation products of the Modern Period Retrospective Analysis for Research and Applications (MERRA-2).…”

Section: Gridded Precipitation Productsmentioning

confidence: 99%

“…Understanding the reliability of GPPs and their ability to simulate hydrological models is crucial for hydrologic analysis (Sun et al 2018;Setti et al 2023). Several studies have been conducted worldwide to evaluate the accuracy and suitability of GPPs in hydro-climatic impact studies as well as the ability to detect extreme events in the past decades using various statistical metrics and ground observations as reference data, i.e., China (Li et al 2023), Malaysia (Ayoub et al 2020;Tan et al 2023), Ethiopia (Degefu et al 2022), and Turkey (Hisam et al 2023).…”

Section: Introductionmentioning

confidence: 99%

“…The NASA POWER project is increasingly gaining popularity as a reliable source for meteorological data input, as evidenced by studies conducted in various parts of the world, i.e., Egypt (Aboelkhair et al 2019), Oman (Marzouk 2021), and Portugal (Rodrigues & Braga 2021). According to Tan et al (2023), the NASA POWER product has exhibited a satisfactory level of accuracy in depicting climatological patterns about precipitation, as well as the maximum and minimum temperature in the Kelantan River Basin, Malaysia. When compared to inland mountainous areas, NASA POWER has shown a stronger correlation with ground observations in coastal zones.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of five gridded precipitation products for estimating precipitation and drought over Yobe, Nigeria

Dawa,

Tan,

Samat

et al. 2024

Water Supply

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Ground observations are often considered as the most reliable and precise source of precipitation data. However, long-term precipitation data from ground observations are lacking in many parts of the world. Gridded precipitation products (GPPs) therefore have emerged as crucial alternatives to ground observations, but it is essential to assess their capability to accurately replicate precipitation patterns. This study aims to evaluate the performance of five GPPs, NASA POWER, TerraClimate, Climate Hazards Group Infrared Precipitation with Climate Data (CHIRPS), GPCC, and Climate Research Unit (CRU), in capturing precipitation and drought patterns from 1981 to 2021 in Yobe, Nigeria. The results indicate that GPCC had good performance at both monthly and annual scales, with high correlation coefficients and low error values. However, it tends to underestimate precipitation amounts in certain areas. Other products also exhibit satisfactory performance with moderate correlations with ground observations. Drought analysis indicates that GPCC outperforms other products in standardised precipitation index-6 calculations, while NASA POWER demonstrates inconsistencies with ground observations, particularly during the early 1980s and mid-2000s. In conclusion, GPCC is the most preferable GPP for precipitation and drought analysis in the Yobe State in Nigeria.

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