Regional HYSPLIT simulation of atmospheric transport and deposition of the Chernobyl 137Cs releases

Oleg Skrynyk, Volodymyr Voloshchuk, Igor Budak, Sergiy Bubin

Research output: Contribution to journalArticle

Abstract

In this work we report the results of HYSPLIT numerical simulations of the Chernobyl 137Cs atmospheric transport, dispersion, and deposition on the regional scale (~1000 km from the source) with the main focus on the analysis of the deposition processes. In the simulations we used three different gridded datasets of input meteorology and three release scenarios previously published in the literature. The resistance method and the predefined constant value of the deposition velocity (0.005 m/s) were applied to calculate dry depositions whereas an approach based on a scavenging coefficient was used for both wet in-cloud and below-cloud removals. The results were statistically evaluated against the measurements of 137Cs total depositions on the territory of Ukraine. Our simulations show considerable dependence of the HYSPLIT-predicted accumulated deposition pattern on both the input meteorology and source parameterizations. The best performance of HYSPLIT was obtained with the ERA Interim reanalysis data and the source model of Talerko (2005) and the constant deposition velocity. This simulation reproduced fairly well the spatial structure of the 137Cs contamination on the territory of Ukraine with good evaluation statistics. However, not all significant local maxima of the contamination pattern were captured clearly. Our simulations also show that dry removal processes account for approximately 50% of the total depositions in Ukraine. Both wet in-cloud and below-cloud removal mechanisms had roughly equal influence on the total amount of 137Cs radionuclides deposited on the territory of Ukraine.

Original languageEnglish
JournalAtmospheric Pollution Research
DOIs
Publication statusAccepted/In press - Jan 1 2019

Fingerprint

atmospheric transport
atmospheric deposition
deposition velocity
simulation
meteorology
Meteorology
dry deposition
Contamination
radionuclide
parameterization
Scavenging
Parameterization
Radioisotopes
Statistics
removal
Computer simulation
contamination

Keywords

  • Cs depositions
  • CALPUFF
  • Chernobyl accident
  • HYSPLIT
  • Wet and dry removals

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Pollution
  • Atmospheric Science

Cite this

Regional HYSPLIT simulation of atmospheric transport and deposition of the Chernobyl 137Cs releases. / Skrynyk, Oleg; Voloshchuk, Volodymyr; Budak, Igor; Bubin, Sergiy.

In: Atmospheric Pollution Research, 01.01.2019.

Research output: Contribution to journalArticle

@article{6134908e7b0842c398f41aa0c510c54d,
title = "Regional HYSPLIT simulation of atmospheric transport and deposition of the Chernobyl 137Cs releases",
abstract = "In this work we report the results of HYSPLIT numerical simulations of the Chernobyl 137Cs atmospheric transport, dispersion, and deposition on the regional scale (~1000 km from the source) with the main focus on the analysis of the deposition processes. In the simulations we used three different gridded datasets of input meteorology and three release scenarios previously published in the literature. The resistance method and the predefined constant value of the deposition velocity (0.005 m/s) were applied to calculate dry depositions whereas an approach based on a scavenging coefficient was used for both wet in-cloud and below-cloud removals. The results were statistically evaluated against the measurements of 137Cs total depositions on the territory of Ukraine. Our simulations show considerable dependence of the HYSPLIT-predicted accumulated deposition pattern on both the input meteorology and source parameterizations. The best performance of HYSPLIT was obtained with the ERA Interim reanalysis data and the source model of Talerko (2005) and the constant deposition velocity. This simulation reproduced fairly well the spatial structure of the 137Cs contamination on the territory of Ukraine with good evaluation statistics. However, not all significant local maxima of the contamination pattern were captured clearly. Our simulations also show that dry removal processes account for approximately 50{\%} of the total depositions in Ukraine. Both wet in-cloud and below-cloud removal mechanisms had roughly equal influence on the total amount of 137Cs radionuclides deposited on the territory of Ukraine.",
keywords = "Cs depositions, CALPUFF, Chernobyl accident, HYSPLIT, Wet and dry removals",
author = "Oleg Skrynyk and Volodymyr Voloshchuk and Igor Budak and Sergiy Bubin",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.apr.2019.09.001",
language = "English",
journal = "Atmospheric Pollution Research",
issn = "1309-1042",
publisher = "Turkish National Committee for Air Pollution Research (TUNCAP)",

}

TY - JOUR

T1 - Regional HYSPLIT simulation of atmospheric transport and deposition of the Chernobyl 137Cs releases

AU - Skrynyk, Oleg

AU - Voloshchuk, Volodymyr

AU - Budak, Igor

AU - Bubin, Sergiy

PY - 2019/1/1

Y1 - 2019/1/1

N2 - In this work we report the results of HYSPLIT numerical simulations of the Chernobyl 137Cs atmospheric transport, dispersion, and deposition on the regional scale (~1000 km from the source) with the main focus on the analysis of the deposition processes. In the simulations we used three different gridded datasets of input meteorology and three release scenarios previously published in the literature. The resistance method and the predefined constant value of the deposition velocity (0.005 m/s) were applied to calculate dry depositions whereas an approach based on a scavenging coefficient was used for both wet in-cloud and below-cloud removals. The results were statistically evaluated against the measurements of 137Cs total depositions on the territory of Ukraine. Our simulations show considerable dependence of the HYSPLIT-predicted accumulated deposition pattern on both the input meteorology and source parameterizations. The best performance of HYSPLIT was obtained with the ERA Interim reanalysis data and the source model of Talerko (2005) and the constant deposition velocity. This simulation reproduced fairly well the spatial structure of the 137Cs contamination on the territory of Ukraine with good evaluation statistics. However, not all significant local maxima of the contamination pattern were captured clearly. Our simulations also show that dry removal processes account for approximately 50% of the total depositions in Ukraine. Both wet in-cloud and below-cloud removal mechanisms had roughly equal influence on the total amount of 137Cs radionuclides deposited on the territory of Ukraine.

AB - In this work we report the results of HYSPLIT numerical simulations of the Chernobyl 137Cs atmospheric transport, dispersion, and deposition on the regional scale (~1000 km from the source) with the main focus on the analysis of the deposition processes. In the simulations we used three different gridded datasets of input meteorology and three release scenarios previously published in the literature. The resistance method and the predefined constant value of the deposition velocity (0.005 m/s) were applied to calculate dry depositions whereas an approach based on a scavenging coefficient was used for both wet in-cloud and below-cloud removals. The results were statistically evaluated against the measurements of 137Cs total depositions on the territory of Ukraine. Our simulations show considerable dependence of the HYSPLIT-predicted accumulated deposition pattern on both the input meteorology and source parameterizations. The best performance of HYSPLIT was obtained with the ERA Interim reanalysis data and the source model of Talerko (2005) and the constant deposition velocity. This simulation reproduced fairly well the spatial structure of the 137Cs contamination on the territory of Ukraine with good evaluation statistics. However, not all significant local maxima of the contamination pattern were captured clearly. Our simulations also show that dry removal processes account for approximately 50% of the total depositions in Ukraine. Both wet in-cloud and below-cloud removal mechanisms had roughly equal influence on the total amount of 137Cs radionuclides deposited on the territory of Ukraine.

KW - Cs depositions

KW - CALPUFF

KW - Chernobyl accident

KW - HYSPLIT

KW - Wet and dry removals

UR - http://www.scopus.com/inward/record.url?scp=85072026176&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072026176&partnerID=8YFLogxK

U2 - 10.1016/j.apr.2019.09.001

DO - 10.1016/j.apr.2019.09.001

M3 - Article

AN - SCOPUS:85072026176

JO - Atmospheric Pollution Research

JF - Atmospheric Pollution Research

SN - 1309-1042

ER -