Identification of storm surge events over the German Bight from atmospheric reanalysis and climate model data
Nat. Hazards Earth Syst. Sci., 15, 1437-1447, doi:10.5194/nhess-15-1437-2015, 2015
Structure, stability, and tsunami hazard associated with a rock slope in Knight Inlet, British Columbia
Nat. Hazards Earth Syst. Sci., 15, 1425-1436, doi:10.5194/nhess-15-1425-2015, 2015
Development of a Global Fire Weather Database
Summary: We have developed a global database of daily, gridded Fire Weather Index System calculations beginning in 1980. Input data and two different estimates of precipitation from rain gauges were obtained from the NASA Modern Era Retrospective-Analysis for Research and Applications. This data set can be used for analyzing historical relationships between fire weather and fire activity, and in identifying large-scale atmosphere–ocean controls on fire weather.
Nat. Hazards Earth Syst. Sci., 15, 1407-1423, doi:10.5194/nhess-15-1407-2015, 2015
Ground-penetrating radar observations for estimating the vertical displacement of rotational landslides
Summary: The objective of this paper is to demonstrate the applicability of ground-penetrating radar (GPR) for monitoring the displacement of permanent slow-moving landslides affected by seasonal kinematic pattern and acceleration events. GPR data are used here to estimate the vertical movement of two rotational slides, since 1982, in combination with other surveying techniques.
Nat. Hazards Earth Syst. Sci., 15, 1399-1406, doi:10.5194/nhess-15-1399-2015, 2015
Exploring the link between drought indicators and impacts
Summary: There is little knowledge on the meaning of different hydro-meteorologic drought indicators for drought impact occurrence on the ground. This study investigates the link between commonly used drought indicators and text-based information on drought impacts through data visualization, extraction of indicator values concurrent with impact onset, and correlation analysis for the case study area Germany. The results demonstrate the feasibility of evaluating drought indicators with impacts.
Nat. Hazards Earth Syst. Sci., 15, 1381-1397, doi:10.5194/nhess-15-1381-2015, 2015
Source of the 6 February 2013 Mw = 8.0 Santa Cruz Islands Tsunami
Nat. Hazards Earth Syst. Sci., 15, 1371-1379, doi:10.5194/nhess-15-1371-2015, 2015
Modelling clustering of natural hazard phenomena and the effect on re/insurance loss perspectives
Nat. Hazards Earth Syst. Sci., 15, 1357-1370, doi:10.5194/nhess-15-1357-2015, 2015
Assessing the vulnerability of infrastructure to climate change on the Islands of Samoa
Summary: This paper identifies key infrastructure and their functions and status to provide an overall picture of relative vulnerability to climate-related stresses on infrastructures in Samoa. An indicator-based vulnerability model (SIVM) was developed to assess two major issues a) criticality of a given infrastructure, viewed differently among different stakeholders, and b) stakeholders, the best available source, could estimate the capacity to repair non-physical damage to such infrastructure.
Nat. Hazards Earth Syst. Sci., 15, 1343-1356, doi:10.5194/nhess-15-1343-2015, 2015
Size of wildfires in the Euro-Mediterranean region: observations and theoretical analysis
Nat. Hazards Earth Syst. Sci., 15, 1331-1341, doi:10.5194/nhess-15-1331-2015, 2015
Forest harvesting is associated with increased landslide activity during an extreme rainstorm on Vancouver Island, Canada
Nat. Hazards Earth Syst. Sci., 15, 1311-1330, doi:10.5194/nhess-15-1311-2015, 2015
Flood fatality hazard and flood damage hazard: combining multiple hazard characteristics into meaningful maps for spatial planning
Summary: Flood hazard maps are crucial for flood risk management. Since flood hazard is a multi-dimensional phenomenon, many different maps could be relevant. Having a large number of maps to take into account does not, however, make planning easier. To support flood risk management planning we therefore introduce a new approach in which all relevant flood hazard parameters can be combined into two comprehensive maps of flood damage hazard and flood fatality hazard.
Nat. Hazards Earth Syst. Sci., 15, 1297-1309, doi:10.5194/nhess-15-1297-2015, 2015
Rainfall and land use empirically coupled to forecast landslides in the Esino river basin, central Italy
Summary: A coupled empirical approach for studying possible correlations among rainfall, vegetation segmentation, and landslide occurrence is applied over the Esino river basin, central Italy. This approach represents an attempt to find both the timing and location of landslides, through an empirical (black box) analysis. Results verify an intensity-duration minimum threshold for the study area (when) and define core areas and fragmented vegetation structures most susceptible to landslides (where).
Nat. Hazards Earth Syst. Sci., 15, 1289-1295, doi:10.5194/nhess-15-1289-2015, 2015
Forest damage and snow avalanche flow regime
Summary: Snow avalanches break, uproot and overturn trees, causing damage to forests. In this paper, we define avalanche loading cases representing four different avalanche flow regimes: powder, intermittent, dry and wet. Using a numerical model that simulates both powder and wet snow avalanches, we study documented events with forest damage. We find that powder clouds with velocities over 20m/s break tree stems and that quasi-static pressures of wet snow avalanches are much higher than dynamic pressure.
Nat. Hazards Earth Syst. Sci., 15, 1275-1288, doi:10.5194/nhess-15-1275-2015, 2015
Dynamics of the Oso-Steelhead landslide from broadband seismic analysis
Summary: We carry out a study of the seismic signals generated by the devastating Oso-Steelhead landslides. We invert the long-period seismic signals generated by the first main event and obtain estimates of its trajectory, kinematics and mass. No distinct long-period surface waves were recorded for the second failure, which prevents inversion for its source parameters. However, from the comparison of the energy of the short-period waves generated by both events, we can estimate the volume of the second.
Nat. Hazards Earth Syst. Sci., 15, 1265-1273, doi:10.5194/nhess-15-1265-2015, 2015
Inversion method for initial tsunami waveform reconstruction
Summary: The developed numerical inversion technique based on the least square inversion and a truncated SVD approach were applied to recovering the initial tsunami waveform. The method presented allows one to control the instability of the numerical solution. Analyzing the singular spectra of the matrix obtained during numerical calculations one can estimate the future inversion by a certain observational system that will allow offering more effective disposition for the registrators by precomputations.
Nat. Hazards Earth Syst. Sci., 15, 1251-1263, doi:10.5194/nhess-15-1251-2015, 2015
Tracking B-31 iceberg with two aircraft-deployed sensors
Summary: Icebergs are a natural hazard to maritime operations in polar regions. Iceberg populations are increasing, as is the demand for access to both Arctic and Antarctic seas. Soon the ability to reliably track icebergs may become a necessity for continued operational safety. In this paper we describe the design of a tracking sensor that can be deployed from an aircraft during surveys of Antarctic icebergs, and detail the results of its first deployment operation on iceberg B-31.
Nat. Hazards Earth Syst. Sci., 15, 1243-1250, doi:10.5194/nhess-15-1243-2015, 2015
A validation of an operational wave and surge prediction system for the Dutch coast
Nat. Hazards Earth Syst. Sci., 15, 1231-1242, doi:10.5194/nhess-15-1231-2015, 2015
Estimating the long-term historic evolution of exposure to flooding of coastal populations
Summary: Using census data, historic maps and hydrodynamic modelling, this paper presents a methodology for assessing how the exposure of people to flooding has changed over the last 200 years at the local level in the UK. The method is applied to two case studies at Portsea and Hayling Islands in the UK's Solent region. The analysis shows that for the case studies, population rise has, to date, had a much greater influence on exposure than sea level rise.
Nat. Hazards Earth Syst. Sci., 15, 1215-1229, doi:10.5194/nhess-15-1215-2015, 2015
Land cover changes and forest landscape evolution (1985–2009) in a typical Mediterranean agroforestry system (high Agri Valley)
Nat. Hazards Earth Syst. Sci., 15, 1201-1214, doi:10.5194/nhess-15-1201-2015, 2015
Internal structure of event layers preserved on the Andaman Sea continental shelf, Thailand: tsunami vs. storm and flash-flood deposits
Nat. Hazards Earth Syst. Sci., 15, 1181-1199, doi:10.5194/nhess-15-1181-2015, 2015