Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322007528> ?p ?o ?g. }
Showing items 1 to 62 of
62
with 100 items per page.
- W4322007528 abstract "Exposure biases are non-climatic changes in the surface air temperature record which were introduced due to changes in the way thermometers were protected from solar radiation. The possible presence of the exposure bias in early instrumental temperature datasets is a well-known issue, and the impact of changing thermometer exposures, particularly the transition between historic exposures and the Stevenson screen, has been explored by previous studies. However, despite this, very few adjustments have been made to account for the bias, with the exception of a handful of localised studies. As a result, the exposure bias still accounts for significant uncertainty in global surface air temperature compilations, such as HadCRUT5.In this work we report an attempt to address the exposure bias for extratropical weather stations in a version of CRUTEM5 that has been extended back in time to 1781 (CRUTEM5_ext). We developed statistical models to predict the bias introduced by transitions from four main categories of historic exposure – open, wall-mounted, intermediate and closed – to the Stevenson screen. The models are based on an empirical analysis of the characteristics of the exposure bias observed in 20 parallel measurement studies, together with the temperature and radiation variables that were a priori expected to influence the magnitude of the bias in mean temperatures on a monthly timescale. Separately, we have compiled a database detailing the historic exposures in use at stations and the timing (or approximate timing when a precise time is not known) of the transition to the Stevenson screen. The statistical models, where robust, are then applied to the individual stations within CRUTEM5_ext to make adjustments for the exposure changes according to the database of historic exposures.This presentation will outline the model development, give a brief overview of the evolution of thermometer exposures in use in the early instrumental period for extratropical stations, and will illustrate the impact the exposure bias adjustments have on the CRUTEM5_ext data. This work forms part of the NERC-funded GloSAT project (https://www.glosat.org/) which is developing a global surface air temperature dataset starting in 1781. Where appropriate, stations used to create the GloSAT dataset will be adjusted for the exposure bias using the models presented here. " @default.
- W4322007528 created "2023-02-26" @default.
- W4322007528 creator A5009999117 @default.
- W4322007528 creator A5015551186 @default.
- W4322007528 creator A5022310517 @default.
- W4322007528 date "2023-05-15" @default.
- W4322007528 modified "2023-09-29" @default.
- W4322007528 title "Estimating exposure biases in early instrumental land surface temperature data" @default.
- W4322007528 doi "https://doi.org/10.5194/egusphere-egu23-8119" @default.
- W4322007528 hasPublicationYear "2023" @default.
- W4322007528 type Work @default.
- W4322007528 citedByCount "0" @default.
- W4322007528 crossrefType "posted-content" @default.
- W4322007528 hasAuthorship W4322007528A5009999117 @default.
- W4322007528 hasAuthorship W4322007528A5015551186 @default.
- W4322007528 hasAuthorship W4322007528A5022310517 @default.
- W4322007528 hasConcept C105795698 @default.
- W4322007528 hasConcept C111472728 @default.
- W4322007528 hasConcept C121332964 @default.
- W4322007528 hasConcept C127313418 @default.
- W4322007528 hasConcept C138885662 @default.
- W4322007528 hasConcept C149782125 @default.
- W4322007528 hasConcept C153294291 @default.
- W4322007528 hasConcept C205649164 @default.
- W4322007528 hasConcept C2777155165 @default.
- W4322007528 hasConcept C2983363897 @default.
- W4322007528 hasConcept C33923547 @default.
- W4322007528 hasConcept C39432304 @default.
- W4322007528 hasConcept C49204034 @default.
- W4322007528 hasConcept C62520636 @default.
- W4322007528 hasConcept C75553542 @default.
- W4322007528 hasConceptScore W4322007528C105795698 @default.
- W4322007528 hasConceptScore W4322007528C111472728 @default.
- W4322007528 hasConceptScore W4322007528C121332964 @default.
- W4322007528 hasConceptScore W4322007528C127313418 @default.
- W4322007528 hasConceptScore W4322007528C138885662 @default.
- W4322007528 hasConceptScore W4322007528C149782125 @default.
- W4322007528 hasConceptScore W4322007528C153294291 @default.
- W4322007528 hasConceptScore W4322007528C205649164 @default.
- W4322007528 hasConceptScore W4322007528C2777155165 @default.
- W4322007528 hasConceptScore W4322007528C2983363897 @default.
- W4322007528 hasConceptScore W4322007528C33923547 @default.
- W4322007528 hasConceptScore W4322007528C39432304 @default.
- W4322007528 hasConceptScore W4322007528C49204034 @default.
- W4322007528 hasConceptScore W4322007528C62520636 @default.
- W4322007528 hasConceptScore W4322007528C75553542 @default.
- W4322007528 hasLocation W43220075281 @default.
- W4322007528 hasOpenAccess W4322007528 @default.
- W4322007528 hasPrimaryLocation W43220075281 @default.
- W4322007528 hasRelatedWork W1966549304 @default.
- W4322007528 hasRelatedWork W1967344189 @default.
- W4322007528 hasRelatedWork W1974972680 @default.
- W4322007528 hasRelatedWork W1984534815 @default.
- W4322007528 hasRelatedWork W2037595390 @default.
- W4322007528 hasRelatedWork W2043411384 @default.
- W4322007528 hasRelatedWork W2177719389 @default.
- W4322007528 hasRelatedWork W2359063307 @default.
- W4322007528 hasRelatedWork W2388363033 @default.
- W4322007528 hasRelatedWork W2475465800 @default.
- W4322007528 isParatext "false" @default.
- W4322007528 isRetracted "false" @default.
- W4322007528 workType "article" @default.