equal
deleted
inserted
replaced
3 |
3 |
4 |
4 |
5 Shown here is the chemical ozone loss in northern winter as well its |
5 Shown here is the chemical ozone loss in northern winter as well its |
6 effects on mid latitudes in Europe. For example, in winter 2010/2011 |
6 effects on mid latitudes in Europe. For example, in winter 2010/2011 |
7 there was a very high ozone depletion in the area of the Arctic polar |
7 there was a very high ozone depletion in the area of the Arctic polar |
8 vortex. In the frame of the `Knowledge Platform "Earth and Environment" (ESKP)`_ |
8 vortex. Here |
9 the effects this ozone loss at mid latitudes are explained and |
9 the effects this ozone loss at mid latitudes are explained and |
10 documented on a daily basis. An early warning system for such events |
10 documented on a daily basis. An early warning system for such events |
11 is thus established. The basis is simulations with the Jülich |
11 is thus established. The basis is simulations with the Jülich |
12 chemical transport model `CLaMS`_, which uses innovative transport and |
12 chemical transport model `CLaMS`_, which uses innovative transport and |
13 mixing algorithms to calculation of the exchange of air masses between |
13 mixing algorithms to calculation of the exchange of air masses between |
28 |
28 |
29 Typically, the ozone columns in the Arctic are still higher than in |
29 Typically, the ozone columns in the Arctic are still higher than in |
30 the Antarctic despite ozone depletion, so that in the Arctic spring |
30 the Antarctic despite ozone depletion, so that in the Arctic spring |
31 there is so far at most a moderate UV radiation at the ground. |
31 there is so far at most a moderate UV radiation at the ground. |
32 |
32 |
33 Current -------- |
33 This page was developed In the frame of the `Knowledge Platform "Earth and Environment" (ESKP)`_ . This programm ceased in 2020, but this page isstill continued. |
34 **The current winter of 2023/2024** shows low stratospheric |
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35 temperatures in December and another period with medium to low |
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36 temperatures at the end of February/beginning of March. Thus there was |
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37 moderate ozone depletion, calculated to be around 70 DU. |
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38 |
34 |
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35 Current |
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36 -------- |
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37 |
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38 **The current winter of 2024/2025** shows specifically low |
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39 stratospheric temperatures, especially record low temperatures in |
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40 early February. A significant Arctic ozone loss is therefore possible |
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41 with later consequences on mid-latitudes. |
39 |
42 |
40 Previous years |
43 Previous years |
41 -------------- |
44 -------------- |
42 |
45 |
43 In recent years, the winters 2010/2011, 2015/2016, and 2019/2020 were particularly |
46 In recent years, the winters 2010/2011, 2015/2016, and 2019/2020 were particularly |
74 ----------------- |
77 ----------------- |
75 The images below show the geographical distribution of the calculated |
78 The images below show the geographical distribution of the calculated |
76 ozone column (top) and ozone loss (bottom) for March 28, 2011. Shown |
79 ozone column (top) and ozone loss (bottom) for March 28, 2011. Shown |
77 is the total column between 12 and 22 km altitude in Dobson Units (DU). |
80 is the total column between 12 and 22 km altitude in Dobson Units (DU). |
78 |
81 |
79 .. _Calculations of ozone loss: /ozoneloss/clams/2020 |
82 .. _Calculations of ozone loss: /ozoneloss/clams/2025 |
80 .. _Estimates from temperature: /ozoneloss/vpsc/2020 |
83 .. _Estimates from temperature: /ozoneloss/vpsc/2025 |
81 .. _UV increase: /ozoneloss/uvi |
84 .. _UV increase: /ozoneloss/uvi |
82 .. _Map display: /ozoneloss/uvmap/200119 |
85 .. _Map display: /ozoneloss/uvmap/250203 |
83 .. _Knowledge Platform "Earth and Environment" (ESKP): /eskp |
86 .. _Knowledge Platform "Earth and Environment" (ESKP): /eskp |
84 .. _CLaMS: http://en.wikipedia.org/wiki/CLaMS |
87 .. _CLaMS: http://en.wikipedia.org/wiki/CLaMS |
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88 .. _1: https://doi.org/10.1029/2020JD033339 |
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89 .. _2: https://agupubs.onlinelibrary.wiley.com/doi/toc/10.1002/(ISSN)1944-8007.ARCTICSPV |