A5055363599- Climate variability and models
- Meteorological Phenomena and Simulations
- Climate change and permafrost
- Hydrology and Drought Analysis
- Cryospheric studies and observations
- Atmospheric and Environmental Gas Dynamics
- Arctic and Antarctic ice dynamics
- Geophysics and Gravity Measurements
- demographic modeling and climate adaptation
- Hydrology and Watershed Management Studies
- Tropical and Extratropical Cyclones Research
- Precipitation Measurement and Analysis
- Mechanical and Thermal Properties Analysis
- thermodynamics and calorimetric analyses
- Experimental and Theoretical Physics Studies
- Climate Change Communication and Perception
- Solar and Space Plasma Dynamics
- Climate Change Policy and Economics
- Science and Climate Studies
- Advanced Mathematical Modeling in Engineering
- Atmospheric Ozone and Climate
- Oceanographic and Atmospheric Processes
- Arctic and Russian Policy Studies
- Flood Risk Assessment and Management
- Urban Heat Island Mitigation
Norwegian Meteorological Institute
2015-2024
Norges Blindeforbund
2016
New Mexico Institute of Mining and Technology
1997
The variability of results from different automated methods detection and tracking extratropical cyclones is assessed in order to identify uncertainties related the choice method. Fifteen international teams applied their own algorithms same dataset—the period 1989–2009 interim European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERAInterim) data. This experiment part community project Intercomparison Mid Latitude Storm Diagnostics (IMILAST; see...
Abstract The European CORDEX (EURO-CORDEX) initiative is a large voluntary effort that seeks to advance regional climate and Earth system science in Europe. As part of the World Climate Research Programme (WCRP) - Coordinated Regional Downscaling Experiment (CORDEX), it shares broader goals providing model evaluation projection framework improving communication with both General Circulation Model (GCM) data user communities. EURO-CORDEX oversees design coordination ongoing ensembles...
Substantial variations in temperature and precipitation have been observed since the first permanent weather station was established Svalbard region 1911. Temperature development are analysed for longest observational series, periods with positive negative trends identified. For all linear found annual values as well spring, summer, autumn series. A very strong winter warming is identified latest decades. Evaluation of downscaled from global climate models forced greenhouse gas emissions...
VALUE is an open European collaboration to intercompare downscaling approaches for climate change research, focusing on different validation aspects (marginal, temporal, extremes, spatial, process‐based, etc.). Here we describe the participating methods and first results from experiment, using “perfect” reanalysis (and reanalysis‐driven regional model (RCM)) predictors assess intrinsic performance of precipitation temperatures over a set 86 stations representative main climatic regions in...
One predicted consequence of global warming is an increased frequency extreme weather events, such as heat waves, droughts, or heavy rainfalls. In parts the Arctic, warm spells and rain-on-snow (ROS) events in winter are already more frequent. How these impact snow-pack permafrost characteristics rarely documented empirically, implications for wildlife society hence far from understood. Here we characterize document effects spell ROS event that occurred High Arctic Svalbard January–February...
In recent decades, surface air temperature (SAT) data from Global reanalyses points to maximum warming over the northern Barents area. However, a scarcity of observations hampers confidence in this Arctic hotspot region. Here, we study past 20-40 years based on new available SAT and quality controlled comprehensive dataset archipelagos Sea. We identify statistically significant record-high annual up 2.7 °C per decade, with autumn 4.0 decade. Our results are compared most global regional...
CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 29:255-268 (2005) - doi:10.3354/cr029255 Statistical downscaling of climate scenarios over Scandinavia I. Hanssen-Bauer1,*, C. Achberger2, R. E. Benestad1, D. Chen2,3, J. Førland1 1Norwegian Meteorological Institute, PO Box 43, 0313 Oslo, Norway2Regional Group, Earth Sciences Centre, Göteborg University, 460, 405 30 Göteborg,...
The autumn and early winter atmospheric response to the record-low Arctic sea ice extent at end of summer 2007 is examined in ensemble hindcasts with prescribed extent, made European Centre for Medium-Range Weather Forecasts state-of-the-art coupled ocean–atmosphere seasonal forecast model. Robust, warm anomalies over Pacific Siberian sectors Arctic, as high 10°C surface, are found October November. A regime change occurs by December, characterized weaker temperatures extending through...
We present an interactive tool for selection and evaluation of global climate models. The is implemented as a web application using the "Shiny" R-package available at https://gcmeval.met.no. Through this tool, models CMIP5 CMIP6 ensembles can be ranked compared based on their representation climate, with user-determined weights indicating importance different regions, seasons, variables, skill scores. ranking used to eliminate poorest climate. As further guidance, projected regional mean...
Abstract The present paper offers a brief assessment of climate change and associated impact in Poland, based on selected results the Polish–Norwegian CHASE-PL project. Impacts are examined sectors, such as water resources, natural hazard risk reduction, environment, agriculture health. Results detection long time series observed variables Poland presented. Also, projections variability provided for horizons 2021–2050 2071–2100 two emission scenarios, RCP4.5 RCP8.5 comparison with control...
Climate change impact on rainfall-induced landslide susceptibility of a certain region is often implied based expected changes in rainfall patterns and rarely explicitly quantified. This study aims to address this gap by implementing coupled climate modelling chains assess the effects changing susceptibility. The are integrated into chain via Intensity-Duration-Frequency (IDF) curves for present future conditions landslide-prone area located central Norway. examined using physical-based...
Abstract A new approach involving the use of common empirical orthogonal functions (EOFs) in statistical downscaling future global climate scenarios is proposed. The advantage this method that it minimizes errors associated with scenarios. time series from EOF analysis are used both for calibration models and prediction This paper presents a systematic comparison between more conventional based on ‘Perfect Prog’ concept. Three different sets experiments carried out where two methods...
Abstract. Variations in ground thermal conditions Svalbard were studied based on measurements and modelling. Ground temperature data from boreholes used to calibrate a transient heat flow model describing depth time variations temperatures. The was subsequently forced with historical surface air records possible future temperatures downscaled multiple global climate models. We discuss development since the early 20th century, responses relation characteristics snow cover. modelled show...
We use a suite of global climate model simulations for the 20th century to assess contribution solar forcing past trends in mean temperature. In particular, we examine how robust different published methodologies are at detecting and attributing solar‐related change presence intrinsic variability multiple forcings. demonstrate that naive application linear analytical methods such as regression gives nonrobust results. also used by Scafetta West (2005, 2006a, 2006b, 2007, 2008) not these same...
Among papers stating a position on anthropogenic global warming (AGW), 97 % endorse AGW. What is happening with the 2 of that reject AGW? We examine selection rejecting An analytical tool has been developed to replicate and test results methods used in these studies; our replication reveals number methodological flaws, pattern common mistakes emerges not visible when looking at single isolated cases. Thus, real-life scientific disputes some cases can be resolved, we learn from mistakes. A...
The application of climate change impact assessment (CCIA) studies in general and especially the linkages between different actor groups typically involved is often not trivial subject to many limitations uncertainties. Disciplinary issues like competing downscaling approaches, imperfect model data uncertainty propagation as well selection appropriate sets are only one part story. Interdisciplinary transdisciplinary challenges add these, provision their usage require at least a minimum...
Abstract The western Himalayan region (WHR) was subject to a significant negative trend in the annual and monsoon rainfall during 1902–2005. Annual seasonal change over WHR of India estimated using 22 rain gauge station data from Meteorological Department. performance 13 global climate models (GCMs) phase 3 Coupled Model Intercomparison Project (CMIP3) 42 GCMs CMIP5 evaluated through multiple analysis: evaluation mean cycle, cycles interannual variability, spatial patterns, trends,...
There are few commonly used indicators that describe the state of Earth’s global hydrological cycle and here we propose three to capture how an increased greenhouse effect influences associated rainfall patterns. They are: i) 24-hr total rainfall, ii) surface area with daily precipitation, iii) mean precipitation intensity. With a recent progress in both satellite observations reanalyses, can now estimate provide new insights into intensity changes over time. Based on ERA5 reanalysis, find...