Benefit of a second calibration phase to estimate the relative global and regional mean sea level drifts between Jason-3 and Sentinel-6a

Ablain, Michaël; Jugier, Rémi; Marti, Florence; Dibarboure, Gérald; Couhert, Alexandre; Meyssignac, Benoît; Cazenave, Anny

doi:10.1002/essoar.10502856.2

Cited by 4 publications

(6 citation statements)

References 9 publications

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“…From the simulations outcome, lateral flow, surface runoff as well as groundwater envisaged to dwindle significantly at central-and end of the century. These robust diminutions are because of dual effects of unchanged water withdrawal and climate revolutionization assumed in the modelling, which is probably to further enhance in the future and aggravate climate changes impacts [6,14]. The notable fall in water yield and subsequently in streamflow concur with insignificant increase in evapotranspiration that will lead to lessen of the water being released to the lowland.…”

Section: Impact Of Flow Analysis On River Ikpoba Monthly Dischargementioning

confidence: 98%

Assessment of the Damage Incurred by biodiversity and ecological degradation via HEC-HMS simulations and of Stream Flow Assessment and Analysis (SAAS).A case study.

Agashua,

Ogbiye,

Oluyemi-Ayibiowu

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Findings on the quality of River Ikpoba samplings is an essential matter because water resources management coupled with hydro-chemical interfaces is of the essence, especially for monitoring and discovering of surface-water contaminants origins. Thus, River Ikpoba samplings were scrutinized using Stream Flow Simulation Model (SFSM) and Multivariate Statistical techniques. Runoff occasion due to land use change shows increase in curve number at peak runoff of 11.60m3/s, while the maximum rainfall is greater in the circumstances up to 141.0 mm. All though the year, not only that envisaged medians always greater than the mean monthly scrutinized, but the anticipated minimum temperature is also bigger, i.e. even more unadventurous prognosis of temperature result in warmer climate scenario in the study region. As the computed runoff occasion p-value (0.998) is greater than the significance level alpha=0.05, one cannot reject the null hypothesis H0. Hence, it was concluded that the simulated flow data are closely related to the observed flow data. Likewise, an increase in curve number (from 74.58 to 79.99) resulted in a corresponding increase in outflow (from 8.00cms to 10.350cms) was observed. Indicating, with increasing curve number, the peak discharge and direct runoff volume also increases proportionately.

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Section: Impact Of Flow Analysis On River Ikpoba Monthly Dischargementioning

confidence: 98%

Assessment of the Damage Incurred by biodiversity and ecological degradation via HEC-HMS simulations and of Stream Flow Assessment and Analysis (SAAS).A case study.

Agashua,

Ogbiye,

Oluyemi-Ayibiowu

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Flooding is the most common of all environmental hazards and it regularly claims over 20,000 lives per year and adversely affects around 75 million people world-wide. Across the globe, floods have posed tremendous danger to people's lives and properties (Ablain et al 2020;Von et al 2020). Floods cause about one third of all deaths, one third of all injuries and one third of all damage from natural disasters (Lutz et al, 2016).…”

Section: Flood Frequency Analysis Under Climate Changementioning

confidence: 99%

Influence of Hydrological Variation Pointers and Incorporated Muskingum Flow Scrutiny on Flooding Frequency in the Upper and Lower Ikpoba Stream, Southern Nigeria

Igibah

2023

CEBEL

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Flood frequency curve using River Ikpoba as Case study was estimated for a return period of 100 years, the flood magnitude is 461 m3/s as against the 380m3/s which was observed to be the highest discharge value throughout the simulation period. This value was found to have occurred in September 2012. The flood frequency curve therefore can aid in flood hazard preparedness since it can be employed to forecast the flood magnitude at different recurrent intervals. There is an increase in the number of wetted with corresponding increase in recurrence interval. For example, for 50yrs and 100 years return period, the number of wetted cells was observed to be 26171with a runoff volume of value of 0.14 x 108m3/s. Using the computed volume of runoff and the corresponding number of wetted cells, the spatial extent of flooding for each return period was generated. Similarly, red spots which are seen in areas such as Lucky Igbinedion Way, Temboga, Second Lagos Road, Mission Road, Ewah Road, Federal Road, Ikpoba, Oregbeni and MM Way shows that these areas are flood prone areas and requires adequate attention and effective early warnings systems in order to alleviate the magnitude of destruction that is caused by flood. Likewise, there is an indicate that as the day’s progress the flow rate was increasing for consecutive 30 days but at low flow rate, but at 90 days it declines. For maximum value as day progress the values decreases.

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“…Likewise, TCC was strongly correlated with built-up sewage and wastewater contagion origins along the river. Natural effluence is influenced via seasonal vicissitudes, for instance, the contamination impact of weathering and soil erosion on river water attribute throughout rainy season [8]. Manganese may occur naturally or through microbial factor contagions sources for instances built-up and industrial contagions, agricultural deeds etcetra.…”

Section: Impacts Of Principal Component Scrutiny On River Ikpobamentioning

confidence: 99%

“…Streams, rivers, and lakes, which are fundamental resources for farming or agribusiness, industry, and companies and also a source of drinking and household water for people and animals, have been disparagingly influenced by climatic-changeability dynamics [5,6]. Freshwater ecosystems around the globe are already down due to disproportionate pressure from drainage, abstraction, dredging, blockading, contamination, silting, and bellicose species [8,9]. Climate changeability only aggravates the problem, even making it worse.…”

Section: Introductionmentioning

confidence: 99%

Modeling the Semivariogram of Climatic Scenario around Rivers by Using Stream Network Mapping and Hydrological Indicator

Agashua

Oluyemi-Ayibiowu

Ihimekpen³

et al. 2022

J. Hum. Earth Future

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Precipitation erosivity propels detrimental hydrological happenings with substantial eco-friendly and socio-economic influences. The conception of the precipitation-vegetation interface is very vital for implementing acclimatization and mitigation techniques for terrestrial bionetworks. Numerous investigations have reconnoitered the spatial correlation of precipitation-vegetation context along the season-precipitation quantity gradient. Here, comprehensive scrutiny of spatio-temporal patterns of climatology-vegetation response to seasonal variability incongruities in River Ikpoba, southern Nigeria, using principal component scrutiny (PCS), semivariogram, cross-validation statistics, spatial distribution mapping, and hydrological indicators for multi-source climatic datasets for pre-impact flow (1913–1966) and post-impact flow (1967–2022). PCS outcomes reveal seven PCs whose eigenvalues were greater than one were hauled out of the twenty-five variables. The River Ikpoba water quality variables displayed a moderately strong rate of spatial reliance, which made it possible to create the spatial distribution map for the carefully chosen water quality variables. Results from further scrutiny of the river Ikpoba flow duration curve show the highest flow rate value between 900–1000cms for the month of October. The post-impact flow's highest value was 65cms in 2008, whereas the pre-impact flow was 64cms. Likewise, 90 days’ minimum highest flow rate was 250cms, 30 days was 1180cms, 7 days was 105cms, and 1 day was 105cms. Whereas the maximum for 1 day was 7200cms, 3 days’ value was 6400cms and 7 days' was 4500cms. This indicates that as the day progressed, the flow rate was increasing for a consecutive 30 days at a low flow rate, but at 90 days it declined. As the day progresses, the values for the maximum value decrease. Doi: 10.28991/HEF-2022-03-01-02 Full Text: PDF

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Benefit of a second calibration phase to estimate the relative global and regional mean sea level drifts between Jason-3 and Sentinel-6a

Cited by 4 publications

References 9 publications

Assessment of the Damage Incurred by biodiversity and ecological degradation via HEC-HMS simulations and of Stream Flow Assessment and Analysis (SAAS).A case study.

Assessment of the Damage Incurred by biodiversity and ecological degradation via HEC-HMS simulations and of Stream Flow Assessment and Analysis (SAAS).A case study.

Influence of Hydrological Variation Pointers and Incorporated Muskingum Flow Scrutiny on Flooding Frequency in the Upper and Lower Ikpoba Stream, Southern Nigeria

Modeling the Semivariogram of Climatic Scenario around Rivers by Using Stream Network Mapping and Hydrological Indicator

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