Climate teleconnections, interannual variability, and evolution of the rainfall regime in a tropical Caribbean island: case study of Barbados

2021 ◽  
Author(s):  
Taha B. M. J. Ouarda ◽  
Christian Charron ◽  
Smail Mahdi ◽  
Latifa A. Yousef
Keyword(s):  
Interannual Variability ◽  
Rainfall Regime ◽  
Caribbean Island

Topography and recent winter rainfall regime change in temperate Western European areas: a case study in the Rhine-Meuse basin

2006 ◽  
Vol 26 (6) ◽  
pp. 785-796 ◽  
Author(s):  
Drogue Gilles ◽  
Wagner Christian ◽  
Mahr Nicole ◽  
Hoffmann Lucien ◽  
Pfister Laurent
Keyword(s):  
Regime Change ◽  
Rainfall Regime ◽  
Winter Rainfall ◽  
Western European

scholarly journals The Ties that Bind

2016 ◽  
Vol 90 (3-4) ◽  
pp. 257-279 ◽  
Author(s):  
Wouter Veenendaal
Keyword(s):  
The Netherlands ◽  
Good Governance ◽  
Field Research ◽  
Small Island ◽  
Caribbean Island ◽  
Dutch Caribbean ◽  
Depth Interviews ◽  
Public Entity

Whereas small island territories are known to face a variety of obstacles to democracy and good governance, it is largely unclear if a nonsovereign relationship with a larger metropolitan country can alleviate these challenges, and which constitutional status provides the best results in this regard. This article aims to address these questions by providing an in-depth case study of St. Eustatius, a Dutch Caribbean island that in 2010 was politically integrated into the Netherlands as a public entity or special municipality. Based on two weeks of field research consisting of nineteen in-depth interviews with a variety of respondents on the island, the article finds that the changes of 2010 have not been able to function as a remedy to the profuse governance problems on the island, while the increased Dutch involvement and dominance have resulted in widespread frustration and resentment.

scholarly journals Evaluating landslide response in a seismic and rainfall regime: a case study from the SE Carpathians, Romania

2021 ◽  
Vol 21 (12) ◽  
pp. 3767-3788
Author(s):  
Vipin Kumar ◽  
Léna Cauchie ◽  
Anne-Sophie Mreyen ◽  
Mihai Micu ◽  
Hans-Balder Havenith
Keyword(s):  
Debris Flow ◽  
Factor Of Safety ◽  
Surface Deformation ◽  
Static Condition ◽  
Historical Earthquakes ◽  
Rainfall Regime ◽  
Seismic Zone ◽  
Flow Prediction ◽  
Runout Simulation

Abstract. There have been many studies exploring rainfall-induced slope failures in earthquake-affected terrain. However, studies evaluating the potential effects of both landslide-triggering factors – rainfall and earthquakes – have been infrequent despite rising global landslide mortality risk. The SE Carpathians, which have been subjected to many large historical earthquakes and changing climate thus resulting in frequent landslides, comprise one such region that has been little explored in this context. Therefore, a massive (∼9.1 Mm2) landslide, situated along the river Bâsca Rozilei, in the Vrancea seismic zone, SE Carpathians, is chosen as a case study area to achieve the aforesaid objective (evaluating the effects of both rainfall and earthquakes on landslides) using slope stability evaluation and runout simulation. The present state of the slope reveals a factor of safety in a range of 1.17–1.32 with a static condition displacement of 0.4–4 m that reaches up to 8–60 m under dynamic (earthquake) conditions. The groundwater (GW) effect further decreases the factor of safety and increases the displacement. Ground motion amplification enhances the possibility of slope surface deformation and displacements. The debris flow prediction, implying the excessive rainfall effect, reveals a flow having a 9.0–26.0 m height and 2.1–3.0 m s−1 velocity along the river channel. The predicted extent of potential debris flow is found to follow the trails possibly created by previous debris flow and/or slide events.

Interannual variability of Moso bamboo forest GPP and its driving factors: A Case Study of Anji County

2016 ◽  
Vol 36 (6) ◽  
Author(s):  
徐小军 XU Xiaojun ◽  
周国模 ZHOU Guomo ◽  
杜华强 DU Huaqiang ◽  
孙少波 SUN Shaobo ◽  
高国龙 GAO Guolong
Keyword(s):  
Interannual Variability ◽  
Moso Bamboo ◽  
Driving Factors ◽  
Bamboo Forest ◽  
Moso Bamboo Forest

scholarly journals Palaeoclimatological perspective on river basin hydrometeorology: case of the Mekong Basin

2013 ◽  
Vol 17 (5) ◽  
pp. 2069-2081 ◽  
Author(s):  
T. A. Räsänen ◽  
C. Lehr ◽  
I. Mellin ◽  
P. J. Ward ◽  
M. Kummu
Keyword(s):  
Interannual Variability ◽  
River Basin ◽  
Southern Oscillation ◽  
Extreme Weather ◽  
Extreme Weather Events ◽  
Case Study Area ◽  
Weather Events ◽  
Basin Scale

Abstract. Globally, there have been many extreme weather events in recent decades. A challenge has been to determine whether these extreme weather events have increased in number and intensity compared to the past. This challenge is made more difficult due to the lack of long-term instrumental data, particularly in terms of river discharge, in many regions including Southeast Asia. Thus our main aim in this paper is to develop a river basin scale approach for assessing interannual hydrometeorological and discharge variability on long, palaeological, time scales. For the development of the basin-wide approach, we used the Mekong River basin as a case study area, although the approach is also intended to be applicable to other basins. Firstly, we derived a basin-wide Palmer Drought Severity Index (PDSI) from the Monsoon Asia Drought Atlas (MADA). Secondly, we compared the basin-wide PDSI with measured discharge to validate our approach. Thirdly, we used basin-wide PDSI to analyse the hydrometeorology and discharge of the case study area over the study period of 1300–2005. For the discharge-MADA comparison and hydrometeorological analyses, we used methods such as linear correlations, smoothing, moving window variances, Levene type tests for variances, and wavelet analyses. We found that the developed basin-wide approach based on MADA can be used for assessing long-term average conditions and interannual variability for river basin hydrometeorology and discharge. It provides a tool for studying interannual discharge variability on a palaeological time scale, and therefore the approach contributes to a better understanding of discharge variability during the most recent decades. Our case study revealed that the Mekong has experienced exceptional levels of interannual variability during the post-1950 period, which could not be observed in any other part of the study period. The increased variability was found to be at least partly associated with increased El Niño Southern Oscillation (ENSO) activity.

scholarly journals ESTUDO DE CASO DE CONTRIBUIÇÃO DO FLUXO DE UMIDADE EM EVENTO DE PRECIPITAÇÃO INTENSA OCORRIDO NO LESTE DO NORDESTE DO BRASIL EM MAIO DE 2017

2019 ◽  
Vol 12 (5) ◽  
pp. 1844
Author(s):  
Rosária Rodrigues Ferreira ◽  
Marcele De Jesus Correa ◽  
Kellen Carla Lima ◽  
Maytê Duarte Leal Coutinho
Keyword(s):  
Extreme Event ◽  
Temporal Distribution ◽  
Heavy Rainfall Event ◽  
Rainfall Regime ◽  
Eastern Region ◽  
Weather Forecasts ◽  
Rain Gauges ◽  
Medium Range ◽  
Disaster Monitoring

A observação de distribuição espacial e temporal do regime de chuvas da região Nordeste do Brasil (NEB) torna-se um desafio devido sua grande variabilidade no tempo e no espaço. Durante o período de 25 a 29 de maio de 2017 foram registrados casos de chuvas intensas na parte leste do NEB, principalmente entre os estados de Alagoas e de Pernambuco. Desta forma, objetivo deste trabalho consistiu em verificar a contribuição do fluxo de umidade associada ao evento de precipitação severa ocorrido na região leste do NEB Especificamente, pretende-se averiguar as características física e sinótica de referido evento. Para tanto, foram utilizados dados de estações pluviométricas automáticas do Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN), imagens de satélite GOES-13 e reanálises pertencentes ao European Centre for Medium-Range Weather Forecasts (ECMWF), do conjunto de reanálise ERA-5. Os resultados obtidos desta pesquisa conseguiram mostrar que o transporte de umidade integrado na vertical sobre a costa leste do NEB foi bastante intenso durante o período em que o sistema de precipitação esteve no estágio de maturação.Palavras-chave: NEB ERA-5; Chuva intensa; Transporte de umidade.  Contribution of moisture flows in heavy rainfall event occurred in eastern Northeast Brazil in May 2017: A case study A B S T R A C TThe observation of spatial and temporal distribution of the rainfall regime of the Northeast of Brazil (NEB) becomes a challenge due to its great variability in time and space. In the period from May 25 to 29, 2017, heavy rains occurred in the eastern part of the NEB, mainly between the states of Alagoas and Pernambuco. Thus, the objective of this work was to verify the contribution of the moisture flow associated to the event of severe precipitation occurred in the eastern region of the NEB. Specifically, it is intended to ascertain the physical and synoptic characteristics of said event. In order to do so, we used data from automatic rain gauges of the National Center for Natural Disaster Monitoring and Alarms (CEMADEN), GOES-13 satellite images and reanalysis from the European Center for Medium-Range Weather Forecasts (ECMWF) ERA-5. The main results showed that the vertical moisture transport presented strong nuclei of moisture convergence in the Atlantic Ocean towards the study area, when the precipitation system was in the maturation stage.Keywords: Transport of moisture; Synoptic analysis; Extreme event; ERA-5.

scholarly journals Evaluating landslide response in seismic and rainfall regime: A case study from the SE Carpathians, Romania

2021 ◽  
Author(s):  
Vipin Kumar ◽  
Léna Cauchie ◽  
Anne-Sophie Mreyen ◽  
Mihai Micu ◽  
Hans-Balder Havenith
Keyword(s):  
Debris Flow ◽  
Factor Of Safety ◽  
Surface Deformation ◽  
Static Condition ◽  
Historical Earthquakes ◽  
Rainfall Regime ◽  
Seismic Zone ◽  
Slope Surface ◽  
Flow Prediction

Abstract. There have been many studies exploring the rainfall induced slope failures in the earthquake affected terrain. However, studies evaluating the potential effects of both landslide triggering factors; rainfall and earthquake have been infrequent despite the rising global landslide mortality risk. The SE Carpathians, which have been subjected to many large historical earthquakes and changing climate and thus resulting in frequent landslides, is one such region that is least explored in this context. Therefore, a massive (~9.1 Mm2) landslide, situated along the Basca Rozilei River, in the Vrancea Seismic Zone, SE Carpathians is chosen as a case study area to achieve the aforesaid objective. The present state of slope reveals the Factor of Safety in a range of 1.17–1.32 with a static condition displacement of 0.4–4 m that reaches up to 8–60 m under dynamic (earthquake) condition. The Groundwater (GW) effect further decreases the Factor of Safety and increases the displacement. Ground motion amplification enhances the possibility of slope surface deformation and displacements. The debris flow prediction, implying the excessive rainfall effect, reveals a flow having 9.0–26.0 m height and 2.1–3.0 m/sec velocity along the river channel. The predicted extent of potential debris flow is found to follow the trails possibly created by previous debris flow and/or slide events.

scholarly journals Consequences of neglecting the interannual variability of the solar resource: A case study of photovoltaic power among the Hawaiian Islands

Solar Energy ◽  
2018 ◽  
Vol 167 ◽  
pp. 61-75 ◽  
Author(s):  
Richard Bryce ◽  
Ignacio Losada Carreño ◽  
Andrew Kumler ◽  
Bri-Mathias Hodge ◽  
Billy Roberts ◽  
...  
Keyword(s):  
Interannual Variability ◽  
Hawaiian Islands ◽  
Photovoltaic Power ◽  
Solar Resource
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