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Publications (9)
A Web site questionnaire survey in Finland suggested that maps illustrating projected shifts of Köppen climatic zones are an effective visualization tool for disseminating climate change information. The climate classification is based on seasonal cycles of monthly-mean temperature and precipitation, and it divides Europe and its adjacent land area...
Large discrepancies are observed between snow albedo in Numerical Weather Prediction (NWP) models and from satellite observations in the case of high vegetation. Knowledge of the Bidirectional Reflectance Distribution Function (BRDF) of snow-forest system is required to solve the problem. The 3-years SNORTEX (Snow Reflectance Transition Experiment)...
The ozone profiles measured by GOMOS are compared with the ozone soundings at two stations: Marambio (56.7°W, 64.3°S) in Antarctica
and Sodankylä (23.6°E, 67.4°N) in northern Europe. The agreement between the GOMOS night measurements and the ozone soundings
from Sodankylä and Marambio are found to be good. Comparisons of measurements during 2003 sh...
Many long-term monitoring sites in Antarctic regions, which deploy ground-based stratospheric remote sensors and fly radiosondes or ozonesondes on balloons, supported the Airborne Polar Experiment in September and October 1999. Support consisted of supplying data to the campaign in real time, and in some cases by increasing the frequency of measure...
The vertical distribution of ozone at Marambio (64°S, 56°W) has been studied using ozonesonde measurements for 1990–1999. Total ozone has been studied using Dobson spectrophotometer measurements for 1987–1999. Marambio is well placed to study the Antarctic ozone depletion mechanism because it is frequently located inside, outside, and in the edge r...
Negative trends of atmospheric column ozone have been detected globally already for two decades. The reduction is characterised by an increasingly heavy chemical ozone loss during late winter and spring in the Southern Hemisphere (SH) polar vortex and a lesser and a more varying loss during late winter and spring in the Northern Hemisphere polar vo...
Negative trends of atmospheric column ozone have been detected globally already for two decades. The reduction is characterised by an increasingly heavy chemical ozone loss during late winter and spring in the Southern Hemisphere (SH) polar vortex and a lesser and a more varying loss during late winter and spring in the Northern Hemisphere polar vo...
