Climate and Climate change at regional scale is of great importance to ecosystems and the environment. Regional climate can be studied by analysis of data from
weather-station networks, tree ring data and regional scales modeling. Sweden is one of the countries in the would where relatively long time series of reliable
instrumental observations are available, which provides an excellent opportunity for such climate studies. In the last few years, impacts of climate change and
variability on land use, agriculture and forest productivity, air quality and water resources have been become new research fields for the group due to the
activities brought about by the new members. Much of these efforts have been carried out in and for China, which also resulted in researches on climate
variability and changes in China.
Main research fields
The key areas of research are: 1) examination of spatial patterns of recent climate changes and variability in Sweden and China by using instrumental and
proxy data such as tree ring data and its association with other factors in the global climate system; 2) study of local climate with a focus on
urban scale and its impacts on environment in for example the Gothenburg and Shanghai regions; 3)
Impact studies related to climate change. The principle objectives are:
- to use existing homogenized series of instrumental climatological records and proxy data to characterize spatial patterns of regional climate change and variability;
- to relate the spatial and temporal patterns to changes in the global climate system (e.g. NAO, Siberian High, SST) and surface characteristics;
- to examine changes in the spatial structure and frequency of occurrence of a suite of major large scale atmospheric circulation patterns determined from observations and models to investigate the relationship between large-scale climates and the regional patterns of climate.
- to better understand regional climates by combining instrumental and proxy data with climate model simulations.
- to reveal and project impacts of climate on ecosystem and society.
Our research can be divided into regional climate researches and impact studies driven by climate change. The first is aimed at helping to resolve critical issues related to regional climate, climate change and variability, involving both data from standard meteorological stations and outputs of GCMs and other regional scale models. The second group is of applied nature and often carried out in and for developing countries such as India.
An understanding of the spatially averaged GCM products and the finer scale regional variability derived from surface data and other models would be useful for several reasons. Firstly it would help focus on the dominant spatial scales involved in the interannual variability of the regional climates. Studies such as this can help validate the performance of GCMs for the Swedish region and also provide regional climate scenarios based on large-scale climate projections, e.g. the regional climate changes likely to result from an enhanced greenhouse effect. This is of great importance for prediction of regional energy consumption, forest production, and agriculture. The second part has applications in society planning, mitigation of climate change and sustainable development of society.
Ongoing research projects
Have atmospheric-circulation changes reduced the NO2 concentrations from local emission sources in Gothenburg (BLURB)?
The Greater Baltic Area Paleoclimate Database (BALPAL)
Effect of Intensive Forestry on greenhouse emissions from Swedish forests
IRWIN - Improved local road winter index to assess maintenance needs and adaptation costs in climate change scenarios
An assessment of afforestation in Egyptian deserts - the ecological effects on tree species of irrigating artificial forests with treated wastewater
Multi-proxy reconstruction of precipitation extremes and its relationship with forest fire activity in southern and central Fennoscandia since AD 1500
- Tellus - Research Platform for Tellurology at Göteborg University. Go to Tellus homepage (2007- )
- Past and future extreme climates in relation to atmospheric circulation over Europe: The role played by anthropogenic forcing, supported by the Swedish Research Council (VR), (2006-2008)
- Forecasting of groundwater and pore pressure in soft sediments which enable accounting for climatic changes, together with SGU, CTH and SMHI. Supported by Formas.(2006-2008)
- Modelling Climate Effects on Global-Scale Water Balance, together with Uppsala University and Oslo University from Formas. (2006-2008)
- Extreme rainfall events in Sweden and their importance for local planning, supported by Swedish Rescue Services Agency (SRSA) (2005-2007) (project homepage)
- Weather regimes in a changing climate: how does it affect soil erosion in Loess Plateau of China? Supported by STINT (The Swedish Foundation for International Cooperation in Research and Higher Education) (2003-2007).
- Evaluating climate variability and its ecological impacts in the past 300 years using tree-ring and historical data from Shaanxi Province, China. Supported by the Swedish International Development Cooperation Agency (SIDA) (2004–2007).
- Spatial and temporal patterns of regional climate variability in Fennoscandia during the past 500 years – A dendroclimatological approach. Supported by the Swedish Research Council (VR) (2004-2008).
Ongoing Ph.D. projects
- Past and future extreme climates in relation to atmospheric circulation over Europe: The role played by anthropogenic forcing
- Forest based CDM projects in India - an analysis of the prospects for establishment of forest based CDM projects in southern India (project website)
- Modelling of Southern-Asian Tropospheric Aerosols, supported by Sida (Swedish International Development Cooperation Agency) and SMHI
- Impact of climate variability and change on agriculture and forest production in northern and western China, supported by Sida (Swedish International Development Cooperation Agency) and National Climate Center/CMA in China
- Transportation and Air Quality in Mega-city, Shanghai, China, supported by GU through GMV and IVL.
- Modelling the Impact of Climate Change on Ecosystem in the Tibetan Plateau, supported by CMA and STINT
- Climate change and its impact on water resources in China
Finished research projects (1999- )
- Agriculture, Forest and Water Management to Minimize Negative Effects of Climate Change. Risk Scenarios and Adaptation Strategies., together with KTH, SLU, LU, UU supported by Swedish Environment Protection Agency (link) (2006)
- Modeling and statistical downscaling of daily climate variables in Sweden and China, supported by Swedish Science Council (VR) and National Climate Center/CMA in China (2003-2005).
- Development of Optical Remote Sensing Instruments for Volcanological Applications (DORSIVA), Supported by EUs FP5 (2002-2005).
- European and North Atlantic daily to MULtidecadal climATE variability (EMULATE), Coordinated by Prof. Phil Jones and supported by EUs FP5 (2002-2005).
- Development of statistical and dynamical downscaling methods for climate change studies in China,
supported by Chinese Academy of Sciences (2002-2004).
- Development of Sub-grid Trace-gas Deposition Methodologies for Large Scale Models: Application to Sweden, supported by Swedish Environmental Protection Agency and Formas. (2001-2004)
- Climate change impact studies in China
This is a multidisciplinary research project focusing on impact studies on climate change and variability on local-scale land use Shaanxi Province, China (2002-2003)
- The FlyKlim research project
The full titel for this project is "Aircraft induced change of high clouds and its impact for the regional climate in Sweden". (2001-2003)
- Urban heat island development in Beijing in the context of climate change,
supported by Sida (Swedish International Development Cooperation Agency) and National Climate Center/CMA in China (2003).
- Statistical downscaling of regional climate change scenarios for Sweden
Participating in the MISTRA-supported program SWECLIM (SWEdish regional CLImate Modelling) under the Rossby Center and the tasks for us are: 1) to study the regional climate variability in Sweden through the instrumental observations and 2) to develop statistical downscaling model for creating future regional climate scenarios for Sweden from climate model simulations. Link to SWECLIM on the MISTRA homepgae (in Swedish). (1996-2003)
- NAO and the Swedish Climate Variability
The project investigate the varying impact of the North Atlantic Oscillation (NAO) on Swedish climate. Supported by NFR (Swedish Natural Science Research Council) (1999-2000).
- Research information
This project is developed in spirit of the Swedish Universities "third task" which is spreading information to the public outside the universities. This project is about spreading information of climate research directed towards the high school and college. Founding has been received from FRN (The Swedish Council for Planning and Co-ordination of Research) (1999).
- Is it possible to make skilful seasonal prediction of regional climate anomaly in Sweden?
supported by STINT (The Swedish Foundation for International Cooperation in Research and Higher Education) (2001-2002).