A note on surface humidity measurements in the cold Canadian environment
Abstract. In the cold Canadian environment, humidity measurements can be very difficult to con-duct. In this brief communication, humidity observations taken by two different sensors at six remote Canadian Arctic locations are compared. The observations collected by Vaisala HMP35CF sensors display a...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.627.8558 2023-05-15T14:54:08+02:00 A note on surface humidity measurements in the cold Canadian environment Stephen J. Déry Marc Stieglitz The Pennsylvania State University CiteSeerX Archives 2002 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.627.8558 http://nhg.unbc.ca/publicationfiles/blm02.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.627.8558 http://nhg.unbc.ca/publicationfiles/blm02.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://nhg.unbc.ca/publicationfiles/blm02.pdf Arctic Hygrometer Relative Humidity Snow Sublimation text 2002 ftciteseerx 2016-01-08T15:18:32Z Abstract. In the cold Canadian environment, humidity measurements can be very difficult to con-duct. In this brief communication, humidity observations taken by two different sensors at six remote Canadian Arctic locations are compared. The observations collected by Vaisala HMP35CF sensors display a strong tendency toward the ice saturation point whereas dew cell instruments exhibit sig-nificantly lower values of relative humidity with respect to ice (RHi). Humidity data collected by HMP35CF hygrometers are therefore unreliable since they are subject to persistent icing that lead them to record values of RHi near 100%, irrespective of the air temperature. The high humidity bias emerges at meteorological stations mounted with the HMP35CF probes since these instruments are usually neither sheltered nor heated, and are not attended to at regular intervals. Thus, great care must be taken in utilizing humidity data recorded by HMP35CF sensors across the network of climate autostations in Canada. Text Arctic Unknown Arctic Canada |
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Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Arctic Hygrometer Relative Humidity Snow Sublimation |
spellingShingle |
Arctic Hygrometer Relative Humidity Snow Sublimation Stephen J. Déry Marc Stieglitz A note on surface humidity measurements in the cold Canadian environment |
topic_facet |
Arctic Hygrometer Relative Humidity Snow Sublimation |
description |
Abstract. In the cold Canadian environment, humidity measurements can be very difficult to con-duct. In this brief communication, humidity observations taken by two different sensors at six remote Canadian Arctic locations are compared. The observations collected by Vaisala HMP35CF sensors display a strong tendency toward the ice saturation point whereas dew cell instruments exhibit sig-nificantly lower values of relative humidity with respect to ice (RHi). Humidity data collected by HMP35CF hygrometers are therefore unreliable since they are subject to persistent icing that lead them to record values of RHi near 100%, irrespective of the air temperature. The high humidity bias emerges at meteorological stations mounted with the HMP35CF probes since these instruments are usually neither sheltered nor heated, and are not attended to at regular intervals. Thus, great care must be taken in utilizing humidity data recorded by HMP35CF sensors across the network of climate autostations in Canada. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Stephen J. Déry Marc Stieglitz |
author_facet |
Stephen J. Déry Marc Stieglitz |
author_sort |
Stephen J. Déry |
title |
A note on surface humidity measurements in the cold Canadian environment |
title_short |
A note on surface humidity measurements in the cold Canadian environment |
title_full |
A note on surface humidity measurements in the cold Canadian environment |
title_fullStr |
A note on surface humidity measurements in the cold Canadian environment |
title_full_unstemmed |
A note on surface humidity measurements in the cold Canadian environment |
title_sort |
note on surface humidity measurements in the cold canadian environment |
publishDate |
2002 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.627.8558 http://nhg.unbc.ca/publicationfiles/blm02.pdf |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
http://nhg.unbc.ca/publicationfiles/blm02.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.627.8558 http://nhg.unbc.ca/publicationfiles/blm02.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766325830418432000 |