Land deformation and sinkhole occurrence in response to the fluctuations of groundwater storage: an integrated assessment of GRACE gravity measurements, ICESat/ICESat-2 altimetry data, and hydrologic models

The rise in sea level is expected to considerably aggravate the impact of coastal hazards in the coming years. Low-lying coastal urban centers, populated deltas, and coastal protected areas are key societal hotspots of coastal vulnerability in terms of relative sea level change. Land deformation on a local scale can significantly affect estimations, so it is necessary to understand the rhythm and spatial distribution of potential land subsidence/uplift in coastal areas. The present study deals with the determination of the relative vertical rates of the land deformation and the sea-surface height by using multi-source Earth observation—synthetic aperture radar (SAR), global navigation satellite system (GNSS), tide gauge, and altimetry data. To this end, the multi-temporal SAR interferometry (MT-InSAR) technique was used in order to exploit the most recent Copernicus Sentinel-1 data. The products were set to a reference frame by using GNSS measurements and were combined with a re-analysis model assimilating satellite altimetry data, obtained by the Copernicus Marine Service. Additional GNSS and tide gauge observations have been used for validation purposes. The proposed methodological approach has been implemented in three pilot cases: the city of Alexandroupolis in the Evros Delta region, the coastal zone of Thermaic Gulf, and the coastal area of Killini, Araxos (Patras Gulf) in the northwestern Peloponnese, which are Greek coastal areas with special characteristics. The present research provides localized relative sea-level estimations for the three case studies. Their variation is high, ranging from values close to zero, i.e., from 5–10 cm and 30 cm in 50 years for urban areas to values of 50–60 cm in 50 years for rural areas, close to the coast. The results of this research work can contribute to the effective management of coastal areas in the framework of adaptation and mitigation strategies attributed to climate change. Scaling up the proposed methodology to a continental level is required in order to overcome the existing lack of proper assessment of the relevant hazard in Europe.

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Groundwater storage change in the Jinsha River basin from GRACE, hydrologic models, and in situ data

10.5194/egusphere-egu2020-1281 ◽

2020 ◽

Author(s):

Nengfang Chao

Keyword(s):

Sediment Transport ◽

River Basin ◽

Human Activities ◽

Water Storage ◽

Hydrologic Models ◽

Groundwater Storage ◽

Jinsha River ◽

In Situ Data ◽

Storage Change

<p>Groundwater plays a major role in the hydrological processes driven by climate change and human activities, particularly in upper mountainous basins. The Jinsha River Basin (JRB) is the uppermost region of the Yangtze River and the largest hydropower production region in China. With the construction of artificial cascade reservoirs increasing in this region, the annual and seasonal flows are changing and affecting the water cycles. Here, we first infer the groundwater storage changes (GWSC), accounting for sediment transport in JRB, by combining the Gravity Recovery and Climate Experiment (GRACE) mission, hydrologic models and in situ data. The results indicate: (1) the average estimation of the GWSC trend, accounting for sediment transport in JRB, is 0.76&#177;0.10 cm/year during the period 2003&#8211;2015, and the contribution of sediment transport accounts for 15%; (2) precipitation (P), evapotranspiration (ET), soil moisture change (SMC), GWSC and land water storage changes (LWSC) show clear seasonal cycles; the interannual trends of LWSC and GWSC increase, but P, runoff (R), surface water storage change (SWSC) and SMC decrease, and ET remains basically unchanged; (3) the main contributor to the increase in LWSC in JRB is GWSC, and the increased GWSC may be dominated by human activities, such as cascade damming, and climate variations (such as snow and glacier melt due to increased temperatures). This study can provide valuable information regarding JRB in China for understanding GWSC patterns and exploring their implications for regional water management.</p>

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Groundwater Storage Change in the Jinsha River Basin from GRACE, Hydrologic Models, and In Situ Data

Ground Water ◽

10.1111/gwat.12966 ◽

2019 ◽

Cited By ~ 2

Author(s):

Nengfang Chao ◽

Gang Chen ◽

Jian Li ◽

Longwei Xiang ◽

Zhengtao Wang ◽

...

Keyword(s):

River Basin ◽

Hydrologic Models ◽

Groundwater Storage ◽

Jinsha River ◽

In Situ Data ◽

Storage Change

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Integrated Assessment for Sustainable Choices

SCIENZE REGIONALI ◽

10.3280/scre2014-s01006 ◽

2014 ◽

pp. 111-141 ◽

Cited By ~ 3

Author(s):

Maria Cerreta ◽

Pasquale De Toro ◽

Girard Luigi Fusco

Keyword(s):

Integrated Assessment

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Assessment of aquifers groundwater storage for the mitigation of climate change effects

Rendiconti online della Società Geologica Italiana ◽

10.3301/rol.2016.54 ◽

2016 ◽

Vol 39 ◽

pp. 89-92 ◽

Cited By ~ 2

Author(s):

Luca Alberti ◽

Martino Cantone ◽

Loris Colombo ◽

Gabriele Oberto ◽

Ivana La Licata

Keyword(s):

Climate Change ◽

Groundwater Storage ◽

Climate Change Effects

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DEVELOPMENT OF ALGORITHM PROCEDURE OF STRATEGY DECISION-MAKING IN A CEMENT INDUSTRY ENTERPRISES

Computational nanotechnology ◽

10.33693/2313-223x-2019-6-4-60-65 ◽

2019 ◽

Vol 6 (4) ◽

pp. 60-65

Author(s):

Elena Vyacheslavovna Zaytseva

Keyword(s):

Decision Making ◽

Integrated Assessment ◽

Information Technologies ◽

Practical Implication ◽

Cement Industry ◽

Survey Method ◽

Innovative Strategy ◽

Technological Readiness ◽

Geological Conditions ◽

Methodological Principles

The problem statement (relevance). The article illustrates the outcome of analytical research in the area of substantiation of organizational and managerial structures of cement companies on the basis of conducting an integral estimation of complex conditions of operation (manufacturability of mining and geological conditions of cement production, level of production and technical conditions and social conditions) and outputs (production and technical level and financial level). Integrated assessment is provided by the appropriate methodology, the purpose of which supports an increase in the objectivity, reliability and reliability of decisions in the development of technological systems of cement enterprises.Purpose: development of an enlarged flowchart of the decision-making procedure algorithm for development strategies for cement enterprises. Methods used: the work used the method of “vector norm”, based on the methodological principles of the theory of complex decision making, utility theory, game theory, qualimetry, expert survey method and other generally accepted methods and principles.Novelty. The elements of novelty include an improved method of integrated assessment of the technological structure of cement enterprises in the conditions of external and internal environments of operation.Result. The article presents an iterative algorithm and decision-making procedure for structurally selected groups of cement enterprises with the choice of a specific form of their development. The results of the work made it possible to form the key areas of training and a list of information technologies that ensure technological readiness for the implementation of the directions of digitalization in relation to cement enterprises.Practical significance: the organizational and management apparatus with the appropriate mathematical reinforcement for the selection and justification of strategies for the development of cement enterprises. The practical implication of the outcome of the study due to the possibility to increase the effectiveness of organizational-technological and managerial solutions based on the developed methodology, technique and algorithm of formation of innovative strategy of development of the mining enterprises of the cement industry. The main provisions of the work are used in the holding “EUROCEMENT” in the development and implementation of plans for the development of industrial production in the short and long term.

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