Impact of input data (in)accuracy on overestimation of visible area in digital viewshed models
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F18%3A76789" target="_blank" >RIV/60460709:41330/18:76789 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.7717/peerj.4835" target="_blank" >http://dx.doi.org/10.7717/peerj.4835</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7717/peerj.4835" target="_blank" >10.7717/peerj.4835</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Impact of input data (in)accuracy on overestimation of visible area in digital viewshed models
Popis výsledku v původním jazyce
Viewshed analysis is a GIS tool in standard use for more than two decades to perform numerous scientific and practical tasks. The reliability of the resulting viewshed model depends on the computational algorithm and the quality of the input digital surface model (DSM). Although many studies have dealt with improving viewshed algorithms, only a few studies have focused on the effect of the spatial accuracy of input data. Here, we compare simple binary viewshed models based on DSMs having varying levels of detail with viewshed models created using LiDAR DSM. The compared DSMs were calculated as the sums of digital terrain models (DTMs) and layers of forests and buildings with expertly assigned heights. Both elevation data and the visibility obstacle layers were prepared using digital vector maps differing in scale (1:5,000, 1:25,000, and 1:500,000) as well as using a combination of a LiDAR DTM with objects vectorized on an orthophotomap. All analyses were performed for 104 sample locations of 5 km(2),
Název v anglickém jazyce
Impact of input data (in)accuracy on overestimation of visible area in digital viewshed models
Popis výsledku anglicky
Viewshed analysis is a GIS tool in standard use for more than two decades to perform numerous scientific and practical tasks. The reliability of the resulting viewshed model depends on the computational algorithm and the quality of the input digital surface model (DSM). Although many studies have dealt with improving viewshed algorithms, only a few studies have focused on the effect of the spatial accuracy of input data. Here, we compare simple binary viewshed models based on DSMs having varying levels of detail with viewshed models created using LiDAR DSM. The compared DSMs were calculated as the sums of digital terrain models (DTMs) and layers of forests and buildings with expertly assigned heights. Both elevation data and the visibility obstacle layers were prepared using digital vector maps differing in scale (1:5,000, 1:25,000, and 1:500,000) as well as using a combination of a LiDAR DTM with objects vectorized on an orthophotomap. All analyses were performed for 104 sample locations of 5 km(2),
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10511 - Environmental sciences (social aspects to be 5.7)
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
PeerJ
ISSN
2167-8359
e-ISSN
2167-8359
Svazek periodika
6
Číslo periodika v rámci svazku
e4835
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
14
Strana od-do
1-14
Kód UT WoS článku
000434229400007
EID výsledku v databázi Scopus
2-s2.0-85047333079