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Record W2357161905

Urban Expansion Analysis of Hefei City in the Last 30 Years by Using Romote Sensing

2013· article· en· W2357161905 on OpenAlex
Yao Yu-lon

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueEconomic Geography · 2013
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicRemote Sensing and Land Use
Canadian institutionsScience North
Fundersnot available
KeywordsGeographyUrban expansionUrban heat islandLand usePopulationPhysical geographyUrban sprawlPopulation growthUrban planningUrban climateEnvironmental scienceEcologyMeteorologyDemography
DOInot available

Abstract

fetched live from OpenAlex

By using six images from Landsat MSS/TM/ETM + dates in 1981a,1989a,1995a,2000a,2005a and 2010a,combined with evaluation of urban expansion,Land Use/Land Coverage Change and urban heat island,we analysis spatial and temporal different characteristics in urban expansion of Hefei City,the driving forces and resultant impacts on ecological environment in the last 30 years.The results showed that during the period from 1989 to 1995,urban land-use expansion in Hefei City showed slow growth trend,the rest of the time were a period of rapid growth.The relationship between population growth and urban land-use in Hefei City is more reasonable,and the development of the city has been the strong support of the population.The development of urban land-use expansion is from compact and stable to loose and complex.Urban expansion by concentric expansion,the center of gravity is basically stable into a cluster expansion,the center of gravity is significantly transfer to south and west.Economic development,population growth,traffic traction and government decision are driving urban land-use expansion.Urban heat island effect in the area as increas as the urban expansion,but the intensity of the heat island showed weakening trend,the decrease in high temperature zone and very high temperature area,showing the trend of multi-center and film distribution.The occupation of the main type of land use is agricultural land in urban land-use expansion,the area decreased by 23.61% from 1995 to 2010.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.136
Threshold uncertainty score0.961

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.190
Teacher spread0.180 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it