Study of diurnal cloud transformations over Western Siberia using MODIS and VIIRS satellite data

The paper discusses the results of comparing cloud cover properties determined by using polar orbiting satellite data (AVHRR/NOAA and MSU-MR/Meteor-M No. 2) for the European territory of Russia and Western Siberia. The cloud characteristics were computed by two threshold techniques: Complex Threshold Technique (CTT) (developed at the European Centre of the State Research Center ‗Planeta‘) and Cloud Cover Detection Technique (CCDT) (developed at the Siberian Centre of ‗Planeta‘). Pixel-by-pixel comparison was performed for very close in time satellite observations, and it showed that in spite of technical similarity of the two radiometers and little difference between both techniques used for the classifications, the results were not the same. The quality of the MSU-MR classification is significantly worse than that of the two AVHRR classifications. In fact, the MSU-MR derivation of cloud parameters fails in optically thin cirrus and altocumulus clouds, thus underestimating the cloud top height for multilayered clouds. As a result, the cloud top is found to be lower, warmer and less iced in comparison with both AVHRR estimates, regardless of the region and other conditions; on the contrary, the cloud top of low and middle clouds appears to be colder, higher and more iced according to MSU-MR data. The MSU-MR cloud mask is strongly underestimated at night during the cold period of the year. The CTT and CCDT‘s cloud top height, temperature and water phase retrieved by AVHRR data are quite close for both regions.

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Open database of snow-measuring observations in the south of Western Siberia (2011-2021) and its comparison with data from stationary meteorological observations and satellite monitoring

Арктика и Антарктика ◽

10.7256/2453-8922.2021.3.36262 ◽

2021 ◽

pp. 1-18

Author(s):

Dmitry Konstantinovich Pershin ◽

Liliya Fedorovna Lubenets ◽

Dmitry Vladimirovich Chernykh ◽

Roman Yur'evich Biryukov ◽

Dmitrii Vladimirovich Zolotov

Keyword(s):

Satellite Data ◽

Western Siberia ◽

Mean Squared Error ◽

River Basins ◽

Winter Period ◽

The South ◽

Squared Error ◽

The Mean ◽

Weather Stations ◽

Snow Mass

This article provides a database of the local snow-measuring observations for three river basins in the south of Western Siberia, reviews the methodological peculiarities of the conduct of measurements, and compares the acquired data with the observations at weather stations and available satellite data (CGLS SWE). Observations were carried out in several stages over the period of ten years (2011-2021) in small river basins of Kuchuk, Kasmala, and Mayma Rivers, and reflect the transition from the West Siberian Plain to the Altai lowlands. Total of 25,000 measurements of the parameters of snow deposits (snow mass and snow storage) were made over the years. The database of snow measuring observations is accessible to public. The comparison with station and satellite data indicated significant variances, but also fairly good coherence in some reservoir basins. According to satellite data, the common to basins mean squared error of snow storages was 42.9 mm, which is slightly higher than the claimed by the product engineers (37.4 mm). The time-limited observation data on the permanent routes of weather stations demonstrated the mean squared error of snow storages of 43.5 mm. In winter period, the mean squared error of satellite data gradually increased to the period of maximum accumulation of snow in reservoir basins. Moreover, the errors of satellite data did not depend on the snowiness of the winter period; and most likely, are associated with the parameters of microstructure of the snow mass in separate seasons.

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Snow water equivalent in Western Siberia as simulated by land-surface model, satellite data and from ERA-Interim reanalysis

23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics ◽

10.1117/12.2285333 ◽

2017 ◽

Author(s):

Dmitry Turkov ◽

Vasilii Sokratov ◽

Tatiana Titkova ◽

Vladimir Semenov ◽

V. V. Popova

Keyword(s):

Satellite Data ◽

Land Surface ◽

Western Siberia ◽

Snow Water Equivalent ◽

Land Surface Model ◽

Surface Model ◽

Snow Water

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REMOTE MONITORING OF ECOLOGICAL STATE OF OIL-PRODUCING AREAS OF TOMSK REGION

Interexpo GEO-Siberia ◽

10.33764/2618-981x-2020-4-2-41-46 ◽

2020 ◽

Vol 4 (2) ◽

pp. 41-46

Author(s):

Tatiana O. Peremitina ◽

Irina G. Yashchenko

Keyword(s):

Spatial Resolution ◽

Satellite Data ◽

Vegetation Cover ◽

Vegetation Index ◽

Western Siberia ◽

Free Access ◽

Environmental Status ◽

Tomsk Region ◽

Access To Data ◽

Hydrocarbon Deposits

The article discusses the possibility of using satellite data to solve problems of monitoring the environmental status of oil producing territories in Western Siberia. The analysis includes MODIS satellite data of medium spatial resolution, which combine the advantages of free access to data and spatial resolution that is acceptable for detecting changes in the state of vegetation cover. The time series of the values of the vegetation index EVI (Enhanced Vegetation Index) of hydrocarbon deposits vegetation cover in the Tomsk Region: Archinsky, Shinginsky, Kazan, South Tabagansky and West Ostaninsky for the growing periods from 2007 to 2019 were calculated. The analysis of the dynamics of changes in the average values of the advanced EVI index allowed determining the minimum and maximum values of the index for the studied territories, as well as to identify trends in the increase of its values over a 10-year period.

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Measurements of Ozone Vertical Profiles in the Upper Troposphere–Stratosphere over Western Siberia by DIAL, MLS, and IASI

Atmosphere ◽

10.3390/atmos11020196 ◽

2020 ◽

Vol 11 (2) ◽

pp. 196 ◽

Cited By ~ 1

Author(s):

Sergey Dolgii ◽

Alexey A. Nevzorov ◽

Alexey V. Nevzorov ◽

Yurii Gridnev ◽

Olga Kharchenko

Keyword(s):

Vertical Distribution ◽

Satellite Data ◽

Western Siberia ◽

Vertical Profiles ◽

Altitude Range ◽

Differential Absorption ◽

Differential Absorption Lidar ◽

Upper Troposphere ◽

Lidar Measurements

The purpose of this work is to measure the ozone vertical distribution (OVD) in the upper troposphere–stratosphere by differential absorption lidar (DIAL) at 299/341 nm and 308/353 nm and to compare and analyze the results against satellite data. А lidar complex for measuring the OVD in the altitude range ≈(5–45) km has been created. Here we analyze the results of ozone lidar measurements at wavelengths of 299/341 nm and 308/353 nm in 2018 at Siberian Lidar Station (SLS) and compare them with satellite (MLS/Aura and IASI/MetOp) measurements of OVD. The retrieved lidar OVD profiles in the upper troposphere–stratosphere in comparison with MLS/Aura and IASI/MetOp profiles, as well as the stitched OVD profile in comparison with the mid-latitude Krueger model, confirm the prospects of using the pairs of ozone sounding wavelengths 299/341 and 308/353 nm.

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