Statistical Relations among Solid Precipitation, Atmospheric Moisture and Cloud Parameters in the Arctic

Observations collected during cold-season precipitation periods at Utquagvik, Alaska and at the multidisciplinary drifting observatory for the study of Arctic climate (MOSAiC) are used to statistically analyze the relations among the atmospheric water cycle parameters including the columnar supercoo...

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Autore principale: Sergey Y. Matrosov
Natura: Articolo
Lingua:English
Pubblicazione: MDPI AG 2024-01-01
Serie:Atmosphere
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Accesso online:https://www.mdpi.com/2073-4433/15/1/132
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author Sergey Y. Matrosov
author_facet Sergey Y. Matrosov
author_sort Sergey Y. Matrosov
collection DOAJ
description Observations collected during cold-season precipitation periods at Utquagvik, Alaska and at the multidisciplinary drifting observatory for the study of Arctic climate (MOSAiC) are used to statistically analyze the relations among the atmospheric water cycle parameters including the columnar supercooled liquid and ice amounts (expressed as liquid-water and ice-water paths, i.e., LWP and IWP), the integrated water vapor (IWV) and the near-surface snowfall rate. Data come from radar and radiometer-based retrievals and from optical precipitation sensors. While the correlation between snowfall rate and LWP is rather weak, correlation coefficients between radar-derived snowfall rate and IWP are high (~0.8), which is explained, in part, by the generally low LWP/IWP ratios during significant precipitation. Correlation coefficients between snowfall rate and IWV are moderate (~0.45). Correlations are generally weaker if snowfall is estimated by optical sensors, which is, in part, due to blowing snow. Correlation coefficients between near-surface temperature and snowfall rates are low (<i>r</i> < 0.3). The results from the Alaska and MOSAiC sites are generally similar. These results are not very sensitive to the amount of time averaging (e.g., 15 min averaging versus daily averages). Observationally based relations among the water cycle parameters are informative about atmospheric moisture conversion processes and can be used for model evaluations.
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spelling doaj.art-9c7c736b76444f008ace3d44cdd4b6d32024-01-26T15:02:38ZengMDPI AGAtmosphere2073-44332024-01-0115113210.3390/atmos15010132Statistical Relations among Solid Precipitation, Atmospheric Moisture and Cloud Parameters in the ArcticSergey Y. Matrosov0Cooperative Institute for Research in Environmental Sciences, University of Colorado and NOAA Physical Sciences Laboratory, Boulder, CO 80309, USAObservations collected during cold-season precipitation periods at Utquagvik, Alaska and at the multidisciplinary drifting observatory for the study of Arctic climate (MOSAiC) are used to statistically analyze the relations among the atmospheric water cycle parameters including the columnar supercooled liquid and ice amounts (expressed as liquid-water and ice-water paths, i.e., LWP and IWP), the integrated water vapor (IWV) and the near-surface snowfall rate. Data come from radar and radiometer-based retrievals and from optical precipitation sensors. While the correlation between snowfall rate and LWP is rather weak, correlation coefficients between radar-derived snowfall rate and IWP are high (~0.8), which is explained, in part, by the generally low LWP/IWP ratios during significant precipitation. Correlation coefficients between snowfall rate and IWV are moderate (~0.45). Correlations are generally weaker if snowfall is estimated by optical sensors, which is, in part, due to blowing snow. Correlation coefficients between near-surface temperature and snowfall rates are low (<i>r</i> < 0.3). The results from the Alaska and MOSAiC sites are generally similar. These results are not very sensitive to the amount of time averaging (e.g., 15 min averaging versus daily averages). Observationally based relations among the water cycle parameters are informative about atmospheric moisture conversion processes and can be used for model evaluations.https://www.mdpi.com/2073-4433/15/1/132snowfallcloud contentwater vaporArctic climatewater cycleatmospheric moisture conversion
spellingShingle Sergey Y. Matrosov
Statistical Relations among Solid Precipitation, Atmospheric Moisture and Cloud Parameters in the Arctic
Atmosphere
snowfall
cloud content
water vapor
Arctic climate
water cycle
atmospheric moisture conversion
title Statistical Relations among Solid Precipitation, Atmospheric Moisture and Cloud Parameters in the Arctic
title_full Statistical Relations among Solid Precipitation, Atmospheric Moisture and Cloud Parameters in the Arctic
title_fullStr Statistical Relations among Solid Precipitation, Atmospheric Moisture and Cloud Parameters in the Arctic
title_full_unstemmed Statistical Relations among Solid Precipitation, Atmospheric Moisture and Cloud Parameters in the Arctic
title_short Statistical Relations among Solid Precipitation, Atmospheric Moisture and Cloud Parameters in the Arctic
title_sort statistical relations among solid precipitation atmospheric moisture and cloud parameters in the arctic
topic snowfall
cloud content
water vapor
Arctic climate
water cycle
atmospheric moisture conversion
url https://www.mdpi.com/2073-4433/15/1/132
work_keys_str_mv AT sergeyymatrosov statisticalrelationsamongsolidprecipitationatmosphericmoistureandcloudparametersinthearctic