Matches in SemOpenAlex for { <https://semopenalex.org/work/W17120205> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W17120205 endingPage "351" @default.
- W17120205 startingPage "339" @default.
- W17120205 abstract "Abstract To study near-surface heat flow on the Antarctíc ice sheet, snow temperatures were measured at South Pole Station to a depth of 3 m at 15 min intervals during most of 1992. Solar heating and water-vapor transport were negligible during the 6 month Winter, as was inter-grain net thermal radiation, leaving conduction as the dominant heat-transport mechanism. The rate of temperature change at depth over 15 min intervals was smaller than that at the surface, by one order of magnitude at 20 cm depth and two orders of magnitude at 1 m depth. A finite-difference model, with conduction as the only heat-transfer mechanism and measured temperatures as the upper and lower boundary conditions, was applied to foursets of three thermistors each. The thermal conductivity was estimated as that which minimized the difference between modeled and measured 15 min changes in temperatures at the center thermistor. The thermal conductivity obtained at shallow depths (above 40 cm) was lower than that given by existing parameterizations based on density, probably because the snow grains were freshly deposited, cold and poorly bonded. A model using only vertical conduction explains on average 87% ofthe observed 15 min temperature changes at less than 60 cm depth and 92% below 60 cm. The difference between modeled andmeasured temperature changes decreased with depth. The discrepancies between model and observation correlated more strongly with the air-snow temperature difference than with the product of that difference with the square of the wind speed,suggesting that the residual errors are due more to non-vertical conduction and to sub-grid-scale variabilis of the conductivity than to windpumping. The residual heating rate not explained by the model of vertical conduction exceeds 0.2 W m −3 only in the top 60 cm of the near-surface snow." @default.
- W17120205 created "2016-06-24" @default.
- W17120205 creator A5018996832 @default.
- W17120205 creator A5020124681 @default.
- W17120205 date "1997-01-01" @default.
- W17120205 modified "2023-09-27" @default.
- W17120205 title "Temperature measurements and heat transfer in near-surface snow at the South Pole" @default.
- W17120205 cites W125893132 @default.
- W17120205 cites W1556099805 @default.
- W17120205 cites W1619994967 @default.
- W17120205 cites W1975798163 @default.
- W17120205 cites W1992882132 @default.
- W17120205 cites W2019778382 @default.
- W17120205 cites W203616061 @default.
- W17120205 cites W2038625428 @default.
- W17120205 cites W2062768654 @default.
- W17120205 cites W321842601 @default.
- W17120205 cites W4214883711 @default.
- W17120205 cites W4232129308 @default.
- W17120205 cites W4235898507 @default.
- W17120205 cites W4243030307 @default.
- W17120205 cites W4249720576 @default.
- W17120205 cites W49734832 @default.
- W17120205 cites W50428032 @default.
- W17120205 cites W79817275 @default.
- W17120205 doi "https://doi.org/10.1017/s0022143000003294" @default.
- W17120205 hasPublicationYear "1997" @default.
- W17120205 type Work @default.
- W17120205 sameAs 17120205 @default.
- W17120205 citedByCount "45" @default.
- W17120205 countsByYear W171202052012 @default.
- W17120205 countsByYear W171202052013 @default.
- W17120205 countsByYear W171202052014 @default.
- W17120205 countsByYear W171202052015 @default.
- W17120205 countsByYear W171202052017 @default.
- W17120205 countsByYear W171202052019 @default.
- W17120205 countsByYear W171202052021 @default.
- W17120205 countsByYear W171202052022 @default.
- W17120205 crossrefType "journal-article" @default.
- W17120205 hasAuthorship W17120205A5018996832 @default.
- W17120205 hasAuthorship W17120205A5020124681 @default.
- W17120205 hasBestOaLocation W171202051 @default.
- W17120205 hasConcept C114793014 @default.
- W17120205 hasConcept C121332964 @default.
- W17120205 hasConcept C127313418 @default.
- W17120205 hasConcept C159985019 @default.
- W17120205 hasConcept C172100665 @default.
- W17120205 hasConcept C192562407 @default.
- W17120205 hasConcept C197046000 @default.
- W17120205 hasConcept C50517652 @default.
- W17120205 hasConcept C57879066 @default.
- W17120205 hasConcept C62520636 @default.
- W17120205 hasConcept C66726788 @default.
- W17120205 hasConcept C91586092 @default.
- W17120205 hasConcept C97346530 @default.
- W17120205 hasConcept C97355855 @default.
- W17120205 hasConceptScore W17120205C114793014 @default.
- W17120205 hasConceptScore W17120205C121332964 @default.
- W17120205 hasConceptScore W17120205C127313418 @default.
- W17120205 hasConceptScore W17120205C159985019 @default.
- W17120205 hasConceptScore W17120205C172100665 @default.
- W17120205 hasConceptScore W17120205C192562407 @default.
- W17120205 hasConceptScore W17120205C197046000 @default.
- W17120205 hasConceptScore W17120205C50517652 @default.
- W17120205 hasConceptScore W17120205C57879066 @default.
- W17120205 hasConceptScore W17120205C62520636 @default.
- W17120205 hasConceptScore W17120205C66726788 @default.
- W17120205 hasConceptScore W17120205C91586092 @default.
- W17120205 hasConceptScore W17120205C97346530 @default.
- W17120205 hasConceptScore W17120205C97355855 @default.
- W17120205 hasIssue "144" @default.
- W17120205 hasLocation W171202051 @default.
- W17120205 hasOpenAccess W17120205 @default.
- W17120205 hasPrimaryLocation W171202051 @default.
- W17120205 hasRelatedWork W1755927494 @default.
- W17120205 hasRelatedWork W2002048899 @default.
- W17120205 hasRelatedWork W2074920836 @default.
- W17120205 hasRelatedWork W2120032755 @default.
- W17120205 hasRelatedWork W2576883267 @default.
- W17120205 hasRelatedWork W2876477378 @default.
- W17120205 hasRelatedWork W3121994336 @default.
- W17120205 hasRelatedWork W3176452776 @default.
- W17120205 hasRelatedWork W3209038144 @default.
- W17120205 hasRelatedWork W4294712542 @default.
- W17120205 hasVolume "43" @default.
- W17120205 isParatext "false" @default.
- W17120205 isRetracted "false" @default.
- W17120205 magId "17120205" @default.
- W17120205 workType "article" @default.