The active layer of permafrost which freezes and thaws is seasonally monitored using ground-penetrating radar (GPR) for variation in activity and thickness, especially in response to recent climate change. Ryazantsev wanted to find out whether GPR can provide useful information about thermal factors such as soil temperature change, thermal insulation and thermal conductivity. Remote sensing…
Category: Earth
Measuring two and a half centuries of Ammonia emissions from the Russian Caucuses
Abstract: Atmospheric ammonia (NH3) is a key transboundary air pollutant that contributes to the impacts of nitrogen and acidity on terrestrial ecosystems. Ammonia also contributes to the atmospheric aerosol that affects air quality. Emission inventories indicate that NH3 was predominantly emitted by agriculture over the 19th and 20th centuries but, up to now, these estimates have…
What happens to the forest floor after Siberian wildfires?
The main tree species in the Siberian taiga are larch, Scots pine, fir, spruce, Siberian pine and birch. Lightning is more a frequent cause of wildfires in northern Siberia with anthropogenic activity causing wildfires further south, however central and eastern Siberia have been more affected overall by wildfires. They decrease soil quality (organic matter, structure,…
Remotely sensing methane over Tatarstan between 2019-23
Tatarstan is in the centre of European Russia, with an area of 67.8km2, and 4 million human population. 90% of the region is no more than 200m above sea level, mostly forest and forest-steppe with deciduous and coniferous trees. It has over 500 rivers, including Volga, Kama and over 8000 lakes and ponds. It is…
Climate Change and organic carbon in Rostov soils
Research has shown that there is an accumulation limit for organic carbon in Chernozem (black) soils, resulting in carbon emissions once that limit has been reached. Agricultural management practices can include crop rotation, fallowing, residue management and fertilisation to counter the less carbon-rich soils as they arise. The researchers previously studied a 40 year period…
Mounds of mires
Researchers from Tuvan and Tomsk universities wanted to understand the impact of climate change on palsa mires which are frozen mounds of peat bogs found in the highlands of southern Siberia. They are caused by permafrost and can be several metres high and up to several hundred km2 in area. When reading existing research they…
1.5ºC annual average warming predicted in Russia over next 30 years
Vladimir Semyonov is Deputy Director of the Obukhov Institute of Atmospheric Physics of the Russian Academy of Sciences. The Russian News Agency TASS reported from a recent press conference summarising the current climate atmospheric position based on the Institute’s science. The Institute is an IPCC contributor and collaborator: According to him, the warming will be…
Uncovering stratospheric oxygen and nitrogen in Russian skies
Variability in total contents based on long term stratospheric trends are measured by researchers at the A.M. Obukhov Institute of Atmospheric Physics. They are measuring levels of O3 and NO2 at the Kislovodsk High-Altitude Scientific Station (KHASS) and Zvenigorod Scientific Station (ZSS). This includes direct and zenith scattered UV solar radiation during mornings and evening…
Permafrost and cryogenic monitoring in the western Russian Arctic.
Permafrost is currently analysed by reviewing temperatures at different layers compared with air and ground surface temperatures, depth of freezing and thawing, as well as overall coverage including snow and vegetation. Mean annual air temperature (MAAT) and mean annual ground temperatures (MAGT) are a widely used source of analysis with the practical measurements being completed…
Green canopies in the urban Russian Arctic
The majority of residents in cities in the Russian Arctic are not indigenous to the area (approx 95%), mostly migrating from the south and west. They are not used to Arctic ecosystems and the Arctic climate with lower temperatures, permafrost, less rich soil and having to adapt to differing light with polar days and nights….