Rodionova N.V. Correlation of ground-based and satellite measurements of methane concentration in the surface layer of the atmosphere in the Tiksi region. Izvestiya Atmospheric and Oceanic Physics , 2022 , 58 (12). С. 1610-1618. ISSN 0001-4338
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Аннотация
In this work, the correlation of AIRS/Aqua satellite measurements of methane concentration in the surface layer of the atmosphere with ground-based measurements at the Voeikov Main Geophysical Observatory in Tiksi in 2011–2020 is determined. The correlation of satellite measurements with ground measurements depends on the season. In spring and summer, the correlation exceeds the autumn correlation, and it is lowest in winter. For the winter period (December, January, and February), the decrease in correlation is associated with possible inversions of air temperature (Yurganov et al., 2016; Anisimov and Kokorev, 2015). When the temperature contrast (TC) is less than 10°C (the difference between air temperatures at the surface and at a level of 4 km (600 hPa)), it is preferable to use satellite data averaged at the levels of 400–500 hPa. This gives an increase in the Spearman correlation coefficient (SCC) between ground and satellite measurements from 0.44 (1000 hPa) to 0.63 (400–500 hPa). However, the obtained regression relationship with a determination coefficient of 0.44 makes it problematic to use it for predicting ground-based data from satellite measurements in areas similar in climatic conditions to Tiksi.
| Тип объекта: | Статья |
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| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Родионова Н.В. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 302 лаб. радиолокационных методов дистанционного зондирования |
| URI: | http://cplire.ru:8080/id/eprint/8387 |
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