GRACE and TRMM mission: The role of remote sensing techniques for monitoring spatio-temporal change in total water mass, Nile basin

Abdelmalik, Karim W.; Abdelmohsen, Karem

doi:10.1016/j.jafrearsci.2019.103596

Cited by 25 publications

(8 citation statements)

References 37 publications

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“…We have to mention here that our outcome agrees with the previous studies published recently over the NRB, such as [19,40,41] found that the TWS over 10 sub-basins of the NRB had a main gaining trend value almost equal to 2.2 cm/month as GRACE TWS trends. Their outcome regarding the TWS values of the Main Nile, Atbara, Blue Nile and sub-basins ranged seasonally between ±6cm, ±15, and ±20, respectively, and for all the NR Basin were about ±15 cm.…”

Section: Resultssupporting

confidence: 93%

“…The Gravity Recovery and Climate Experiment (GRACE) mission [17] was launched on the 17 March 2002 and continued until the 27 October 2017. GRACE became an essential source of data for continuously monitoring the variation in water fluxes over large basins, e.g., in Africa (e.g., Nubian and Nile basin, [9,10,[18][19][20], in Saudi Arabia (e.g., Mega Aquifer [21][22][23]), and in Asia (Tigris Euphrates [24]), in USA (Michigan [25]). The GRACE Follow-On (GRACE-FO) mission was a successive mission launched on the 22nd of May 2018, and it continues to provide accurate estimates of the mean and time-variable components of the gravity field and its corresponding variations in water fluxes, as well the TWS over large basins at a spatial resolution of about 200 km (corresponding to the spherical harmonics expansion of degree 96) over monthly time spans.…”

Section: Introductionmentioning

confidence: 99%

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Mass Variations in Terrestrial Water Storage over the Nile River Basin and Mega Aquifer System as Deduced from GRACE-FO Level-2 Products and Precipitation Patterns from GPCP Data

Elsaka

Abdelmohsen

Alshehri

et al. 2022

Water

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Changes in the terrestrial total water storage (TWS) have been estimated at both global and river basin scales from the Gravity Recovery and Climate Experiment (GRACE) mission and are still being detected from its GRACE Follow-On (GRACE-FO) mission. In this contribution, the sixth release of GRACE-FO (RL06) level-2 products applying DDK5 (decorrelation filter) were used to detect water mass variations for the Nile River Basin (NRB) in Africa and the Mega Aquifer System (MAS) in Asia. The following approach was implemented to detect the mass variation over the NRB and MAS: (1) TWS mass (June 2018–June 2021) was estimated by converting the spherical harmonic coefficients from the decorrelation filter DDK 5 of the GRACE-FO Level-2 RL06 products into equivalent water heights, where the TWS had been re-produced after removing the mean temporal signal (2) Precipitation data from Global Precipitation Climatology Project was used to investigate the pattern of change over the study area. Our findings include: (1) during the GRACE-FO period, the mass variations extracted from the RL06-DDK5 solutions from the three official centers—CSR, JPL, and GFZ—were found to be consistent with each other, (2) The NRB showed substantial temporal TWS variations, given a basin average of about 6 cm in 2019 and about 12 cm in 2020 between September and November and a lower basin average of about −9 cm in 2019 and −6 cm in 2020 in the wet seasons between March and May, while mass variations for the MAS had a relatively weaker temporal TWS magnitude, (3) the observed seasonal signal over the NRB was attributed to the high intensity of the precipitation events over the NRB (AAP: 1000–1800 mm yr−1), whereas the lack of the seasonal TWS signal over the MAS was due to the low intensity of the precipitation events over the MAS (AAP: 180–500 mm yr−1).

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Mass Variations in Terrestrial Water Storage over the Nile River Basin and Mega Aquifer System as Deduced from GRACE-FO Level-2 Products and Precipitation Patterns from GPCP Data

Elsaka

Abdelmohsen

Alshehri

et al. 2022

Water

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“…In arid and hyper-arid areas, the efforts to assess the quality and the quantity of water resources have been considered a priority to secure the water supply ( Abdelmohsen et al, 2019 , Abdelmohsen et al, 2020 , Abdelmalik and Abdelmohsen, 2019 , El-Saadawy et al, 2020 , Abotalib et al, 2021 ). In the Kingdome of Saudi Arabia (KSA), particularly in Makkah city, numerous religious mass gathering events occur yearly including the Hajj and Umrah events, especially Umrah events during Ramadan month, the ninth month in the Hijri calendar.…”

Section: Introductionmentioning

confidence: 99%

Assessment of supplied water quality during mass gatherings in arid environments

Othman

Ahmed

Abotalib

et al. 2022

Journal of King Saud University - Science

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“…Las variaciones mensuales de las anomalías gravitatorias usando los datos de la misión GRACE relacionados con las variaciones del agua total almacenada en diversas cuencas y lagos, en sinergia con datos satelitales de precipitación, humedad del suelo, modelos hidrológicos, y datos in situ han sido ampliamente estudiadas como se indican en [1], [2], [3] y [4]. Uno de los principales estudios fue el ciclo de carga y recarga del agua almacenada en la cuenca del Amazonas y su relación con los eventos del fenómeno El Niño Oscilación Sur (ENSO) en el Pacífico tropical.…”

Section: Introductionunclassified

Spatio-temporal variation of the change in total water storage and precipitation using GRACE and TRMM data: Lima - Callao in PeruJuan

Mendoza¹,

Rojas²,

Jiménez³

et al. 2022

Proceedings of the 20th LACCEI International Multi-Conference for Engineering, Education and Technology: “Education, Research A

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Spatio-temporal variation of the anomalies of the gravity field associated with the change in total water storage and precipitation in Lima -Callao was analyzed. GRACE (Gravity Recovery and Climate Experiment) and TRMM (Tropical Rainfall Measuring Mission) data monthly were introduced in this study. Autocorrelation, cross-correlation and decomposition analysis of the time series was performed, finding that both series present annual cycles but with different intra-annual variations. The gravitational anomalies increased and decreased in an annual cycle, positive gravitational anomalies varied from December to Ma y a nd negatives gravitational anomalies vary from June to November. Precipitation mainly presents an annual cycle, although other frequencies of lower spectral power of 6, 4 and 3 months were found, precipitation increases from August to March, decreases rapidly until May followed by a dry period from May to August. Cross correlation was applied between both time series obtaining a maximum correlation coefficient of 0.8677 for a lag of two months, this lag seems to be related to the recharge mechanisms of the total water storage, which reveals that the Lima -Callao region receives indirect recharge.

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GRACE and TRMM mission: The role of remote sensing techniques for monitoring spatio-temporal change in total water mass, Nile basin

Cited by 25 publications

References 37 publications

Mass Variations in Terrestrial Water Storage over the Nile River Basin and Mega Aquifer System as Deduced from GRACE-FO Level-2 Products and Precipitation Patterns from GPCP Data

Mass Variations in Terrestrial Water Storage over the Nile River Basin and Mega Aquifer System as Deduced from GRACE-FO Level-2 Products and Precipitation Patterns from GPCP Data

Assessment of supplied water quality during mass gatherings in arid environments

Spatio-temporal variation of the change in total water storage and precipitation using GRACE and TRMM data: Lima - Callao in PeruJuan

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