Joel Fiddes

Joel Fiddes
WSL Institute for Snow and Avalanche Research SLF · Research Unit Snow and Permafrost

PhD

About

28
Publications
8,590
Reads
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633
Citations
Additional affiliations
January 2014 - November 2014
University of Zurich
Position
  • PostDoc Position
May 2009 - November 2013
University of Zurich
Position
  • PhD Student

Publications

Publications (28)
Preprint
Full-text available
Several regional studies identified heterogeneous mass changes in western High Mountain Asia over the last decade. Causes for these mass change patterns are still not fully understood. Modelling the physical interactions between glacier surface and atmosphere over several decades can provide insight into relevant processes. Such model applications,...
Preprint
Full-text available
This study describes and evaluates a new downscaling scheme that specifically addresses the need for hillslope scale atmospheric forcing timeseries for modeling the local impact of regional climate change projections on the land surface in complex terrain. The method has a global scope in that it does not rely directly on surface observations and i...
Article
Full-text available
More than half of all tropical forests are degraded by human impacts, leaving them threatened with conversion to agricultural plantations and risking substantial biodiversity and carbon losses. Restoration could accelerate recovery of aboveground carbon density (ACD), but adoption of restoration is constrained by cost and uncertainties over effecti...
Article
Full-text available
Knowledge about changes in ground temperatures under a changing climate is important for many environmental, economic, and infrastructure applications and can be estimated by transient numerical simulations. However, a full annual cycle of precipitation data is needed to achieve this, yet is often unavailable in high alpine regions where a lack of...
Chapter
Full-text available
open access via: https://www.routledge.com/The-Aral-Sea-Basin-Water-for-Sustainable-Development-in-Central-Asia/Xenarios-Schmidt-Vogt-Qadir-Janusz-Pawletta-Abdullaev/p/book/9781138348882#sup
Article
Full-text available
Spatial variability in high-relief landscapes is immense , and grid-based models cannot be run at spatial resolutions to explicitly represent important physical processes. This hampers the assessment of the current and future evolution of important issues such as water availability or mass movement hazards. Here, we present a new processing chain t...
Preprint
Full-text available
Spatial variability in high-relief landscapes is immense, and grid-based models cannot be run at spatial resolutions to explicitly represent important physical processes. This hampers the assessment of the current and future evolution of important issues such as water availability or mass movement hazards. Here, we present a new processing chain th...
Article
The three components of the cryosphere – glaciers, snow and permafrost – are all affected by climate change. Mountain communities face growing threats to infrastructure, while downstream communities face disruptions in their water supply and risks of food and energy insecurity as a consequence. In Central Asia, the cryosphere-related changes in wat...
Article
Full-text available
Collaborative Indo-Swiss research on permafrost has thrown new light on this rarely studied component of the Indian Himalayan cryosphere. Under a pilot study, first maps of estimated permafrost distribution in Kullu district, Himachal Pradesh, India have been produced, using a combination of simple topographic and climatic principles, more sophisti...
Article
Full-text available
Numerical simulations of land surface processes are important in order to perform landscape-scale assessments of earth systems. This task is problematic in complex terrain due to (i) high-resolution grids required to capture strong lateral variability, and (ii) lack of meteorological forcing data where they are required. In this study we test a top...
Data
Full-text available
Human development report for Afghanistan 2011. This paper looks at the country’s climate characteristics and its sensitivity to drought and floods and proposes methods for the development of forecasting and coping strategies. It also analyses the legal and institutional framework for implementing such strategies.
Article
Full-text available
Simulation of land surface processes is problematic in heterogeneous terrain due to the the high resolution required of model grids to capture strong lateral variability caused by, for example, topography, and the lack of accurate meteorological forcing data at the site or scale it is required. Gridded data products produced by atmospheric models c...
Article
Full-text available
Numerical simulations of land-surface processes are important in order to perform landscape-scale assessments of earth-systems. This task is problematic in complex terrain due to: (i) high resolution grids required to capture strong lateral variability, (ii) lack of meteorological forcing data where it is required. In this study we test a topograph...
Article
Full-text available
Simulation of land surface processes is problematic in heterogeneous terrain due to the the high resolution required of model grids to capture strong lateral variability caused by e.g. topography and the lack of accurate meteorological forcing data at the site or scale it is required. Gridded data products produced by atmospheric models can fill th...
Article
Full-text available
Mountain regions are highly sensitive to global climate change. However, large scale assessments of mountain environments remain problematic due to the high resolution required of model grids to capture strong lateral variability. To alleviate this, tools are required to bridge the scale gap between gridded climate datasets (climate models and re-a...
Article
Full-text available
Seasonal snow cover and its melt regime are heterogeneous both in time and space. Describing and modelling this variability is important because it affects diverse phenomena such as runoff, ground temperatures or slope movements. This study presents the derivation of melting characteristics based on spatial clusters of ground surface temperature (G...
Article
Full-text available
Mountain regions are highly sensitive to global climate change. However, large scale assessments of mountain environments remain problematic due to the high resolution required of model grids to capture strong lateral variability. To alleviate this, tools are required to bridge the scale gap between gridded climate datasets (climate models and re-a...
Article
Full-text available
The seasonal snow cover and its melting are heterogeneous both in space and time. Describing and modelling this variability are important because it affects divers phenomena such as runoff, ground temperatures or slope movements. This study investigates the derivation of melting characteristics based on spatial clusters of temperature measurements....
Article
Full-text available
Measurements of environmental variables are often used to validate and calibrate physically-based models. Depending on their application, the models are used at different scales, ranging from few meters to tens of kilometers. Environmental variables can vary strongly within the grid cells of these models. Validating a model with a single measuremen...
Article
Full-text available
Measurements of environmental variables are often used to validate and calibrate physically-based models. Depending on their application, models are used at different scales, ranging from few meters to tens of kilometers. Environmental variables can vary strongly within the grid cells of these models. Validating a model with a single measurement is...
Conference Paper
Full-text available
Commercial, coin-sized iButton temperature logger devices are well-suited for densely instrumenting large outdoor areas. An efficient workflow for deploying and maintaining those devices is necessary when striving to deploy and operate several hundreds of data logger devices. Additionally, a sophisticated data management is required for handling th...
Article
Mountain areas are characterized by extreme variability in elevation, exposure to solar radiation and ground material. Many physical processes, that control ground temperatures and thereby permafrost, are highly affected by this variability. An improved understanding of permafrost and related processes in mountain areas therefore requires investiga...

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