wiki:in_depth_information_about_the_permafrost_response_to_climate_change_report
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| wiki:in_depth_information_about_the_permafrost_response_to_climate_change_report [2014/12/11 12:13] – micolet | wiki:in_depth_information_about_the_permafrost_response_to_climate_change_report [2014/12/11 12:14] (current) – micolet | ||
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| The reaction scenarios were assessed during the project timeframe. | The reaction scenarios were assessed during the project timeframe. | ||
| The scenario were realised following these steps: | The scenario were realised following these steps: | ||
| - | 1) establishment of the relationship between measured climate data and observed geomorphic permafrost reactions; | + | - establishment of the relationship between measured climate data and observed geomorphic permafrost reactions; |
| - | 2) analysis and modelling of present and future climate changes using available datasets collected in the two climate periods 1961-90 and 2021-2050; | + | |
| - | 3) combination of the results of the climate change analysis with the data from the 13 study sites that analyse the recent thermal and/or geomorphic evolution; | + | |
| - | 4) estimation of future changes in permafrost distribution. | + | |
| The datasets used in the empirical model are: | The datasets used in the empirical model are: | ||
| - | - temperature data at altitudes above 1800 m a.s.l. (most relevant zone for permafrost) for the present climate (reference period 1961-90) and for a future climate 2021-2050 (CLM simulation). These data were the starting point to calculate the following parameters: the number of frost days, ice days and freeze-thaw days; | + | * temperature data at altitudes above 1800 m a.s.l. (most relevant zone for permafrost) for the present climate (reference period 1961-90) and for a future climate 2021-2050 (CLM simulation). These data were the starting point to calculate the following parameters: the number of frost days, ice days and freeze-thaw days; |
| - | - data from the test site are very different because investigated with different techniques. However, the only parameter that is available for all the 13 stations at the same time (Ground Surface Temperature) records no longer than 10 years.\\ | + | |
| __Keywords__\\ | __Keywords__\\ | ||
wiki/in_depth_information_about_the_permafrost_response_to_climate_change_report.txt · Last modified: 2014/12/11 12:14 by micolet