Significance of Surface Temperature in the Thermal Infrared Sensing of Sea and Lake Ice

Poulin, Ambrose O.

doi:10.3189/s0022143000034432

Cited by 2 publications

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References 2 publications

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“…Remote sensing at thermal infrared wavelengths (-8.0-11.0 pm) can provide information on the surface temperature of sea ice (Steffen and Lewis, 1988) and can be used to monitor snow surface temperature throughout the snowmelt period (Barnes, 1981, in Foster et al, 1987 a period important in energy balance studies (Foster et al, 1987). Thermal imagery is also commonly used for small-scale studies of ice extent and ice movement and can be used for a relative assessment of ice thickness (up to about 1 m) (Barnes et al, 1974;Dey, 1980;Poulin, 1975;Weeks, 1981). For example, Ito (1985) used Landsat MSS 7 (near-infrared) data to observe sea ice distribution and decay in the North Water during 1973.…”

Section: Thermodynamic Properties Of Sea Icementioning

confidence: 99%

Measuring Climatic State Variables from SAR Images of Sea Ice: The SIMS SAR Validation Site in Lancaster Sound

Barber¹,

Johnson²,

LeDrew³

1991

ARCTIC

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In this paper we consider three aspects of arctic sea ice climate studies: a review of climate processes related to a seasonal sea ice cover, a review of how climate state variables related to the reviewed processes may be measured using remote sensing data, and an analysis of the relative utility of tonal versus textural classification of synthetic aperture radar (SAR) images of sea ice. The two reviews are presented in the context of a field validation experiment called the Seasonal Sea Ice Monitoring Site (SIMS) being conducted in Lancaster Sound/Barrow Strait, Northwest Territories (N.W.T.). The analysis of tone versus texture as a means of extracting ice type information from SAR images of sea ice is conducted using X-band, HH polarized data from the SIMS'90 field experiment and data collected over Mould Bay, N.W.T.

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Section: Thermodynamic Properties Of Sea Icementioning

confidence: 99%

Measuring Climatic State Variables from SAR Images of Sea Ice: The SIMS SAR Validation Site in Lancaster Sound

Barber¹,

Johnson²,

LeDrew³

1991

ARCTIC

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“…Some effort should be expended o n the prosecution of an in tegrated modeling a nd fi eld-measurem ent experiment under conditi ons in whi ch solar radiation is insignificant and thaw zones are present in t he ice cover. Attention should a lso be paid to th e effects of variable depth a nd structure of the snow cover (Poulin , 1975)' T h e goal of this venture should be the designing and testing o f a "conservative ice-thickness model " which wou ld permit underestimation of thi ckness bu t exclude the possibility of overestimation.…”

Section: Pot Ential App Lication S I N Glaciologymentioning

confidence: 99%

The Analysis of the Near-surface Energy Transfer Environment from Thermal Infrared Imagery

Outcalt

1975

J. Glaciol.

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A BSTR ACT. The radi ant surface tempera ture ima g ed by therma l infra red line-scanning equipm ent is a product o f bo th surface tempera ture a nd emissivity. I n d e ta il it is the integra ted product of th e evo lutiona ry developme nt o f the nea r-surface e nergy tra nsfe r r e gim e. The va ri a ti o n o f surface ra dia nt te mpera ture spa tia ll y a nd te mpora ll y conta ins informa tion a bo ut the structure, composition, a nd the rmal s ta te of nea r surface m a te ria ls. It is sugges ted th a t the stud y o f gro und ice, sea/la ke ice, a nd th e the rma l regimes of mounta in s no w a nd ice bodies, a re reasonable ta rgets for the qua ntita ti ve a ppli ca tion o f the rma l m a pping techn olog y, a nd tha t conside ra bl e techni ca l d evelopm ent effort be expe nd ed on spec tra l, sp a tia l, and tempora l o pe ra to rs for use in computer processing of pi c tures for glacio logica l d a ta . caiorijiqlles. L ' ima ge d e la te mpe r a ture superfi cic Jl e d e ra yonnem ent tra nsmise pa r un equipement de ba layage a rayon s infra rouge cal o rifique, est le resultat conjugu e d e la temperature d e surface et de l'emissivite. En d e ta il , c'est le r es ulta t d e I' integrati o n du deveioppem e nt flu c tua nt du regim e d e transferts energe tiqu es pres d e la surface. L a va ri a tion d e la te mpera ture superfi cie lle d e rayonn em e nt d a ns I'espacc et d a ns le te mps contient des info rma ti ons sur la stru c ture, la compos iti o n e t I'e ta t thermique d es m a teri a ux proches d e la surfa ce. On pense que les etudes d e la glace d e terre, d e la g lace d e lac ou d e m e r, d es regim es thermiques d e la neige des m o ntagnes et des gl acie rs, sont des obj ecti fs r a isonn a bl es pour un e a ppli ca ti on qua n tita ti ve d e la technique d e ca rtogra phic the rmique, e t qu ' il faut fa ire un effort technique considera bl e sur les pa ra m e tres d e temps, d 'esp ace et de longue ur d 'o nd e pour utiliser sur ordina teur les ima ges obtenues a des fin s g lac io logiques. ZUSA MM EN F ASSUNG . Die Analyse der Ellergieiibertragllllg ill der Umgebullg eiller Oberjliiche aus AbbildulIgell lIIilIhennischel1l InJra rot. Di e Stra hlungs te mpera tur ein e r Obe rAache, die mi t Ge ra ten zur lini enwe isen Abtastung im therm isch en Infra rot ermitte lt wird , ist sowo hl von d el' Tempera tur wie von del' Stra hlungskra ft del' OberAac he a bha ngig. Gena u gen o m men ist sie d as G esamterge bnis d e l' Entwicklung d es En ergieubertragun gssys te m s in del' Na he d e l' OberA ache. Die V e ra nderung del' Stl'ahlungstempera tur d e l' OberA ache enth;l!t ra umli c h und zeitlich Info rm a tionen libel' di e Struktur, die Zusamm ense tzung und d e n th ennisc hen Z usta nd d e l' obe rAa chenn a he n M a te ria lien. Die Untersuchung von Bod e ne is, lVIeer-und Seee is sowi e del' th ermisc he n V e rha ltnisse d el' Sc hn ee-und Eisko rpe r im G ebirge ersch e int d a her a ls lohn end es Ziel fUr die qua ntita tive Anwendung d e l' V erfa hl'en zur the ...

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Significance of Surface Temperature in the Thermal Infrared Sensing of Sea and Lake Ice

Cited by 2 publications

References 2 publications

Measuring Climatic State Variables from SAR Images of Sea Ice: The SIMS SAR Validation Site in Lancaster Sound

Measuring Climatic State Variables from SAR Images of Sea Ice: The SIMS SAR Validation Site in Lancaster Sound

The Analysis of the Near-surface Energy Transfer Environment from Thermal Infrared Imagery

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