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|Title:||Exposing the urban continuum: implications and cross-comparison from an interdisciplinary perspective|
|Authors:||UHL JOHANNES H.; ZORAGHEIN HAMIDREZA; LEYK STEFAN; BALK DEBORAH; CORBAN CHRISTINA; SYRRIS VASILEIOS; FLORCZYK ANETA|
|Citation:||INTERNATIONAL JOURNAL OF DIGITAL EARTH|
|Publisher:||TAYLOR & FRANCIS LTD|
|Type:||Articles in periodicals and books|
|Abstract:||There is an increasing availability of geospatial data describing patterns of human settlement and population such as various global remote-sensing based built-up land layers, fine-grained census-based population estimates, and publicly available cadastral and building footprint data. This development constitutes new integrative modeling opportunities to characterize the continuum of urban, peri-urban, and rural settlements and populations. However, little research has been done regarding the agreement between such data products in measuring human presence which is measured by different proxy variables (i.e. presence of built-up structures derived from different remote sensors, census-derived population counts, or cadastral land parcels). In this work, we quantitatively evaluate and cross-compare the ability of such data to model the urban continuum, using a unique, integrated validation database of cadastral and building footprint data, U.S. census data, and three different versions of the Global Human Settlement Layer (GHSL) derived from remotely sensed data. We identify advantages and shortcomings of these data types across different geographic settings in the U.S., which will inform future data users on implications of data accuracy and suitability for a given application, even in data-poor regions of the world.|
|JRC Directorate:||Space, Security and Migration|
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