History of landslide susceptibility and a chorology of landslide-prone areas in the Western Ghats of Kerala, India

Kuriakose, Sekhar L.; Sankar, G.; Muraleedharan, C.

doi:10.1007/s00254-008-1431-9

Cited by 103 publications

(64 citation statements)

References 13 publications

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“…Newspaper data allow either investigation or complete information of past landslides (Cuesta et al, 1999;Devoli et al, 2007;Kuriakose et al, 2009), floods (Rappaport, 2000;Agasse, 2003;Maples and Tiefenbacher, 2009;Adhikari et al, 2010), or both types of phenomena (Hilker et al, 2009). Collected data allow either analysis of the evolution of societal hazard perception (Llasat et al, 2009) or the estimation of direct financial damage as well as fatalities and injured people (FitzGerald et al, 2010).…”

Section: Methodological Approachmentioning

confidence: 99%

Damaging events along roads during bad weather periods: a case study in Calabria (Italy)

Petrucci

Pasqua

2012

Nat. Hazards Earth Syst. Sci.

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Abstract. The study focuses on circumstances that affect people during periods of bad weather conditions characterised by winds, rainfall, landslides, flooding, and storm surges. A methodological approach and its application to a study area in southern Italy are presented here. A 10-yr database was generated by mining data from a newspaper. Damaging agents were sorted into five types: flood, urban flooding, landslide, wind, and storm surge. Damage to people occurred in 126 cases, causing 13 victims, 129 injured and about 782 people involved but not injured.For cases of floods, urban flooding and landslides, the analysis does not highlight straightforward relationships between rainfall and damage to people, even if the events showed different features according to the months of occurrence. The events occurring between May and October were characterised by concentrated and intense rainfall, and between May and July, the highest values of hourly (103 mm on the average) and monthly rainfall (114 mm on the average) were recorded. Urban flooding and flash floods were the most common damaging agents: injured, involved people and more rarely, cases with victims were reported.Between November and April, the highest number of events was recorded. Rainfall presented longer durations and hourly and sub-hourly rainfall were lower than those recorded between May and October. Landslides were the most frequent damaging agents but the highest number of cases with victims, which occurred between November and January, were mainly related to floods and urban flooding.Motorists represent the totality of the victims; 84 % of the people were injured and the whole of people involved. All victims were men, and the average age was 43 yr. The primary cause of death was drowning caused by floods, and the second was trauma suffered in car accidents caused by urban flooding. The high number of motorists rescued in submerged cars reveals an underestimation of danger in the case of floods, often increased by the sense of security related to the familiarity of the road. In contrast, in the cases of people involved in landslides, when there was enough time to realise the potential risk, people behaved appropriately to avoid negative consequences. Of the victims, 50 % were killed along fast-flowing roads; this may be related to the high speed limit in force on these roads, as a car's speed reduces the reaction time of a driver's response to an unexpected situation, whatever the damaging agent is. These results can be used in local information/education campaigns to both increase risk awareness and promote self-protective behaviours.Moreover, the mapping of damaging effects pointed out the regional sectors in which the high frequency of the events suggests further planning of in-depth examinations, which can individuate the critical points and local regulator interventions that might change damage incidences in the future.

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Section: Methodological Approachmentioning

confidence: 99%

Damaging events along roads during bad weather periods: a case study in Calabria (Italy)

Petrucci

Pasqua

2012

Nat. Hazards Earth Syst. Sci.

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“…All the taluks of Wayanad had higher landslide incidences from 1973 to 2013 (ref. 34). There was less variation in change of mean minimum and maximum temperature trend from 1973 to 2013 across Mananthavady region.…”

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confidence: 99%

Vulnerability of Dairy-Based Livelihoods to Climate Variability and Change:A Study of Western Ghats Region in Wayanad, Kerala

Radhakrishnan

Gupta

2017

Current Science

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The study assesses the livelihood vulnerability of dairy farmers to climate variability and change (CVC) in Wayanad district of the Western Ghats region in Kerala. For this purpose, a Livelihood Vulnerability Index (LVI) was developed underlying the definition of Intergovernmental Panel on Climate Change consisting of 28 indicators and 7 LVI components. A fussel framework was used for conceptualizing the vulnerable situation. Participatory rural appraisal and personal interviews were used to collect household data of 180 dairy farmers of three taluks complemented by thirty years of gridded weather data. The normalized data were then combined into three indices, i.e. sensitivity, exposure and adaptive capacity, which were then averaged with weights given using principal component analysis, to obtain the overall index. LVI indicated that the dairy farmers of all the taluks of Wayanad are vulnerable to CVC with Pulpally taluka being the most vulnerable with 48.33% farmers under the high level vulnerability category with wide variation in LVI components across the taluks. For the sustenance of dairy farming of small and marginal farmers of the region and for mitigating risks, policies are required for incentivizing the livelihood infrastructure and promotion of grass root level innovations.

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“…Landslides in India occur primarily in the Himalayan mountain ranges (Tahir and Ha 2011;Sattar et al 2011) and in the Western Ghats mountain ranges (Kuriakose et al 2009). Despite the fact that India has one of the highest incidences of landslides and landslide-induced fatalities (Kirschbaum et al 2010), there are only a few studies on landslide instrumentation in the Western Ghats (e.g., Kuriakose et al 2008).…”

Section: Introductionmentioning

confidence: 99%

The deployment of deep-earth sensor probes for landslide detection

Ramesh

Vasudevan

2011

Landslides

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In this paper, we present a state-of-the-art wireless sensor network (WSN) of deep-earth probes (DEPs) that has been deployed to monitor an active landslide in the Western Ghats mountain range of South India. While India has one of the highest incidences of landslides and landslide-induced fatalitiesprimarily in the Himalayas of North India and in the Western Ghats of Central and South India-our study is perhaps the first comprehensive attempt to instrumentally detect landslides in the Western Ghats. Wireless networks have enabled us, since June 2009, to continuously monitor the deployment site in real time and from anywhere around the globe. There have been a few earlier landslide monitoring WSNs using accelerometers in Emilia Romagna Apennines, Italy; global navigation satellite system (GNSS) sensors to monitor the Hornbergl landslide, Austria; and vibrating wire stress sensors to monitor a slope in China. We improved upon these WSN systems by incorporating a variety of sensors-piezometers, dielectric moisture sensors, strain gauges, tiltmeters, a geophone, and a weather station-and installing some of these sensors as deep as 20 m below the ground surface. We present the salient aspects of the field deployment of DEPs: the selection of sensors and their incorporation in DEPs, the methodology we used in embedding these DEPs into the soil, and a few of the key aspects of the wireless sensor network. We also present a description of the deployment site and some of the results of geotechnical investigations carried out on borehole corings. Finally, we present the more interesting field data collected from the monitoring system during a rainy season in July and August 2009.

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History of landslide susceptibility and a chorology of landslide-prone areas in the Western Ghats of Kerala, India

Cited by 103 publications

References 13 publications

Damaging events along roads during bad weather periods: a case study in Calabria (Italy)

Damaging events along roads during bad weather periods: a case study in Calabria (Italy)

Vulnerability of Dairy-Based Livelihoods to Climate Variability and Change:A Study of Western Ghats Region in Wayanad, Kerala

The deployment of deep-earth sensor probes for landslide detection

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