Snow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation

<p>Grounded in situ, or invasive, cosmic ray neutron sensors (CRNSs) may allow for continuous, unattended measurements of snow water equivalent (SWE) over complete winter seasons and allow for measurements that are representative of spatially variable Arctic snow covers, but few studies have t...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	A. Jitnikovitch, P. Marsh, B. Walker, D. Desilets
Formato:	article
Lenguaje:	EN
Publicado:	Copernicus Publications 2021
Materias:	Environmental sciences GE1-350 Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/34b7a8c39afc41c8bf6307dfafe7e462
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:34b7a8c39afc41c8bf6307dfafe7e462
record_format	dspace
spelling	oai:doaj.org-article:34b7a8c39afc41c8bf6307dfafe7e4622021-11-25T12:40:08ZSnow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation10.5194/tc-15-5227-20211994-04161994-0424https://doaj.org/article/34b7a8c39afc41c8bf6307dfafe7e4622021-11-01T00:00:00Zhttps://tc.copernicus.org/articles/15/5227/2021/tc-15-5227-2021.pdfhttps://doaj.org/toc/1994-0416https://doaj.org/toc/1994-0424<p>Grounded in situ, or invasive, cosmic ray neutron sensors (CRNSs) may allow for continuous, unattended measurements of snow water equivalent (SWE) over complete winter seasons and allow for measurements that are representative of spatially variable Arctic snow covers, but few studies have tested these types of sensors or considered their applicability at remote sites in the Arctic. During the winters of 2016/2017 and 2017/2018 we tested a grounded in situ CRNS system at two locations in Canada: a cold, low- to high-SWE environment in the Canadian Arctic and at a warm, low-SWE landscape in southern Ontario that allowed easier access for validation purposes. Five CRNS units were applied in a transect to obtain continuous data for a single significant snow feature; CRNS-moderated neutron counts were compared to manual snow survey SWE values obtained during both winter seasons. The data indicate that grounded in situ CRNS instruments appear able to continuously measure SWE with sufficient accuracy utilizing both a linear regression and nonlinear formulation. These sensors can provide important SWE data for testing snow and hydrological models, water resource management applications, and the validation of remote sensing applications.</p>A. JitnikovitchP. MarshB. WalkerD. DesiletsCopernicus PublicationsarticleEnvironmental sciencesGE1-350GeologyQE1-996.5ENThe Cryosphere, Vol 15, Pp 5227-5239 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental sciences GE1-350 Geology QE1-996.5
spellingShingle	Environmental sciences GE1-350 Geology QE1-996.5 A. Jitnikovitch P. Marsh B. Walker D. Desilets Snow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation
description	<p>Grounded in situ, or invasive, cosmic ray neutron sensors (CRNSs) may allow for continuous, unattended measurements of snow water equivalent (SWE) over complete winter seasons and allow for measurements that are representative of spatially variable Arctic snow covers, but few studies have tested these types of sensors or considered their applicability at remote sites in the Arctic. During the winters of 2016/2017 and 2017/2018 we tested a grounded in situ CRNS system at two locations in Canada: a cold, low- to high-SWE environment in the Canadian Arctic and at a warm, low-SWE landscape in southern Ontario that allowed easier access for validation purposes. Five CRNS units were applied in a transect to obtain continuous data for a single significant snow feature; CRNS-moderated neutron counts were compared to manual snow survey SWE values obtained during both winter seasons. The data indicate that grounded in situ CRNS instruments appear able to continuously measure SWE with sufficient accuracy utilizing both a linear regression and nonlinear formulation. These sensors can provide important SWE data for testing snow and hydrological models, water resource management applications, and the validation of remote sensing applications.</p>
format	article
author	A. Jitnikovitch P. Marsh B. Walker D. Desilets
author_facet	A. Jitnikovitch P. Marsh B. Walker D. Desilets
author_sort	A. Jitnikovitch
title	Snow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation
title_short	Snow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation
title_full	Snow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation
title_fullStr	Snow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation
title_full_unstemmed	Snow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation
title_sort	snow water equivalent measurement in the arctic based on cosmic ray neutron attenuation
publisher	Copernicus Publications
publishDate	2021
url	https://doaj.org/article/34b7a8c39afc41c8bf6307dfafe7e462
work_keys_str_mv	AT ajitnikovitch snowwaterequivalentmeasurementinthearcticbasedoncosmicrayneutronattenuation AT pmarsh snowwaterequivalentmeasurementinthearcticbasedoncosmicrayneutronattenuation AT bwalker snowwaterequivalentmeasurementinthearcticbasedoncosmicrayneutronattenuation AT ddesilets snowwaterequivalentmeasurementinthearcticbasedoncosmicrayneutronattenuation
_version_	1718413489368727552

Snow water equivalent measurement in the Arctic based on cosmic ray neutron attenuation

Ejemplares similares