Abstract:Electronic archives of data from standard meteorological observations (mean daily/monthly surface air temperatures - SAT) at the meteorological stations at Bukhta Tikhaya (Hooker Island, 1929-1960) and Krenkel Observatory (Hayes Island, 1957-2017) on Franz Josef Land (FJL) are presented. Parallel data series of SAT made in 1958 and 1959 on both meteorological stations were analyzed. Linear regression equations used for extrapolation of observational data representative for Krenkel Observatory for the period 19… Show more
“…Within the study area (Fig. 2 a), two long-term composite series have been established for Svalbard Airport 24 in the west and the Krenkel Observatory 38 in the northeast (Fig. 3 a).…”
Section: Resultsmentioning
confidence: 99%
“… Figure 3 Temperature series from weather stations and observed trends. ( a ) Annual SAT series from the manned stations at Svalbard Airport 24 , 31 and Krenkel Observatory 38 . ( b ) Annual SAT 1981–2020 from both old and newly available observations from Norwegian (in blue) and Russian (in grey) weather stations.…”
Section: Resultsmentioning
confidence: 99%
“…Only one station (Krenkel Observatory), located in the central part of the archipelago, had been in operation during the whole study period, except for the period 2001–2004. A long-term composite series for Krenkel Observatory has also recently been established 38 (Fig. 3 a).…”
In recent decades, surface air temperature (SAT) data from Global reanalyses points to maximum warming over the northern Barents area. However, a scarcity of observations hampers the confidence of reanalyses in this Arctic hotspot region. Here, we study the warming over the past 20–40 years based on new available SAT observations and a quality controlled comprehensive SAT dataset from the northern archipelagos in the Barents Sea. We identify a statistically significant record-high annual warming of up to 2.7 °C per decade, with a maximum in autumn of up to 4.0 °C per decade. Our results are compared with the most recent global and Arctic regional reanalysis data sets, as well as remote sensing data records of sea ice concentration (SIC), sea surface temperature (SST) and high-resolution ice charts. The warming pattern is primarily consistent with reductions in sea ice cover and confirms the general spatial and temporal patterns represented by reanalyses. However, our findings suggest even a stronger rate of warming and SIC-SAT relation than was known in this region until now.
“…Within the study area (Fig. 2 a), two long-term composite series have been established for Svalbard Airport 24 in the west and the Krenkel Observatory 38 in the northeast (Fig. 3 a).…”
Section: Resultsmentioning
confidence: 99%
“… Figure 3 Temperature series from weather stations and observed trends. ( a ) Annual SAT series from the manned stations at Svalbard Airport 24 , 31 and Krenkel Observatory 38 . ( b ) Annual SAT 1981–2020 from both old and newly available observations from Norwegian (in blue) and Russian (in grey) weather stations.…”
Section: Resultsmentioning
confidence: 99%
“…Only one station (Krenkel Observatory), located in the central part of the archipelago, had been in operation during the whole study period, except for the period 2001–2004. A long-term composite series for Krenkel Observatory has also recently been established 38 (Fig. 3 a).…”
In recent decades, surface air temperature (SAT) data from Global reanalyses points to maximum warming over the northern Barents area. However, a scarcity of observations hampers the confidence of reanalyses in this Arctic hotspot region. Here, we study the warming over the past 20–40 years based on new available SAT observations and a quality controlled comprehensive SAT dataset from the northern archipelagos in the Barents Sea. We identify a statistically significant record-high annual warming of up to 2.7 °C per decade, with a maximum in autumn of up to 4.0 °C per decade. Our results are compared with the most recent global and Arctic regional reanalysis data sets, as well as remote sensing data records of sea ice concentration (SIC), sea surface temperature (SST) and high-resolution ice charts. The warming pattern is primarily consistent with reductions in sea ice cover and confirms the general spatial and temporal patterns represented by reanalyses. However, our findings suggest even a stronger rate of warming and SIC-SAT relation than was known in this region until now.
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