Results 21 to 30 of about 11,787 (218)

Delineation of high resolution climate regions over the Korean Peninsula using machine learning approaches [PDF]

open access: yes, 2019
In this research, climate classification maps over the Korean Peninsula at 1 km resolution were generated using the satellite-based climatic variables of monthly temperature and precipitation based on machine learning approaches.
Im, Jungho   +6 more
core   +1 more source

Mapping Human Settlements with Higher Accuracy and Less Volunteer Efforts by Combining Crowdsourcing and Deep Learning

open access: yesRemote Sensing, 2019
Reliable techniques to generate accurate data sets of human built-up areas at national, regional, and global scales are a key factor to monitor the implementation progress of the Sustainable Development Goals as defined by the United Nations.
Benjamin Herfort   +4 more
doaj   +1 more source

UNCERTAINTIES OF COMPLETENESS MEASURES IN OPENSTREETMAP – A CASE STUDY FOR BUILDINGS IN A MEDIUM-SIZED GERMAN CITY [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The completeness of buildings in OpenStreetMap (OSM) is estimated for a medium-sized German city and its surroundings by comparing the OSM data with data from an official building cadastre.
T. Törnros   +3 more
doaj   +1 more source

Mapping evapotranspiration variability over a complex oasis-desert ecosystem based on automated calibration of Landsat 7 ETM+ data in SEBAL [PDF]

open access: yes, 2019
Fragmented ecosystems of the desiccated Aral Sea seek answers to the profound local hydrologically- and water-related problems. Particularly, in the Small Aral Sea Basin (SASB), these problems are associated with low precipitation, increased temperature,
Cao, Liangzhong   +6 more
core   +2 more sources

Revisiting the Role of Place in Geographic Information Science

open access: yesISPRS International Journal of Geo-Information, 2018
Although place-based investigations into human phenomena have been widely conducted in the social sciences over the last decades, this notion has only recently transgressed into Geographic Information Science (GIScience). Such a place-based GIS comprises
Helena Merschdorf, Thomas Blaschke
doaj   +1 more source

Are crowdsourced datasets suitable for specialized routing services? Case study of Openstreetmap for routing of people with limited mobility [PDF]

open access: yes, 2017
Nowadays, Volunteered Geographic Information (VGI) has increasingly gained attractiveness to both amateur users and professionals. Using data generated from the crowd has become a hot topic for several application domains including transportation ...
Ali, Ahmed Loai   +3 more
core   +3 more sources

Dane dotyczące miast jako przedmiot badań geograficznych

open access: yesKonwersatorium Wiedzy o Mieście, 2019
W pracy przedstawiono problemy, z jakimi można się spotkać podczas analizy danych o mieście, od ich pozyskiwania, poprzez czyszczenie, aż po zapis w odpowiednim formacie.
Iwona Jażdżewska
doaj   +1 more source

VOLUNTEERED GEOGRAPHIC INFORMATION FOR MAPPING URBAN CLIMATE AND AIR QUALITY: TESTING AND ASSESSING ‘SNIFFER BIKES’ WITH LOW-COST SENSORS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Impacts of climate change and air pollutants are a growing concern. Reliable and accessible monitoring systems to assess air quality and climate extremes are essential to inform decision-makers and increase awareness of citizens.
C. Zanetti   +6 more
doaj   +1 more source

Estimation of Usable Area of Flat-Roof Residential Buildings Using Topographic Data with Machine Learning Methods

open access: yesRemote Sensing, 2019
The real estate appraisal largely consists of estimating the property’s value based on the transaction prices of similar buildings with the usable area being one of the main comparative units.
Leszek Dawid, Michał Tomza, Anna Dawid
doaj   +1 more source

Direct local building inundation depth determination in 3-D point clouds generated from user-generated flood images [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2017
In recent years, the number of people affected by flooding caused by extreme weather events has increased considerably. In order to provide support in disaster recovery or to develop mitigation plans, accurate flood information is necessary ...
L. Griesbaum   +3 more
doaj   +1 more source

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