Algorithms to prepare Digital Elevation Models (DMTs) for hydraulic analysis are common practice; these are often called DMT enhancement algorithms, and are frequently the first step of the analysis to extract overland flow networks from DMTs. In this paper, conventional DMT enhancement algorithms are tested to assess their effect on the generation of overland flow networks; the de_flat algorithm is also evaluated in this study. A sensitivity analysis of the generated overland flow network for different DMT enhancement algorithms is carried out and presented here. The results obtained so far suggest that this type of algorithms can be used to prepare DMTs for hydraulic analysis, but a great amount of care needs to be taken in order to avoid destruction of the terrain morphology. .
Prilikom primene Digitalnih Modela Terena (DMT) za hidrauličke analize, uobičajena je praksa da se koriste algoritmi za njegovo pre-procesiranje i poboljšanje, posebno kada treba odrediti mrežu površinskih tokova. U ovom radu se testiraju klasični postupci poboljšanja DMT-a i njihov efekat na generisanu mrežu površinskih tokova, kao i upotrebljivost de_flat algoritma. Urađena je analiza osetljivosti generisanja površinske mreže kanala na metode poboljšanja DMT-a. Dobijeni rezultati pokazuju da su testirani algoritmi upotrebljivi ali da se mora obratiti pažnja kako se tokom postupka poboljšanja DMT-a ne bi narušila njegova morfologija. .
Keywords:
digital elevation model / DMT enhancement / flat areas / overland flow network / pit cells / digitalni model terena / DMT poboljšanje / ravne površi / površinsko tečenje / depresije u DMT
Source:
Voda i sanitarna tehnika, 2009, 39, 6, 19-28
Publisher:
Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd
TY - JOUR
AU - Leitao, Joao P.
AU - Prodanović, Dušan
AU - Maksimović, Čedo
AU - Matos, José S.
PY - 2009
UR - https://grafar.grf.bg.ac.rs/handle/123456789/242
AB - Algorithms to prepare Digital Elevation Models (DMTs) for hydraulic analysis are common practice; these are often called DMT enhancement algorithms, and are frequently the first step of the analysis to extract overland flow networks from DMTs. In this paper, conventional DMT enhancement algorithms are tested to assess their effect on the generation of overland flow networks; the de_flat algorithm is also evaluated in this study. A sensitivity analysis of the generated overland flow network for different DMT enhancement algorithms is carried out and presented here. The results obtained so far suggest that this type of algorithms can be used to prepare DMTs for hydraulic analysis, but a great amount of care needs to be taken in order to avoid destruction of the terrain morphology. .
AB - Prilikom primene Digitalnih Modela Terena (DMT) za hidrauličke analize, uobičajena je praksa da se koriste algoritmi za njegovo pre-procesiranje i poboljšanje, posebno kada treba odrediti mrežu površinskih tokova. U ovom radu se testiraju klasični postupci poboljšanja DMT-a i njihov efekat na generisanu mrežu površinskih tokova, kao i upotrebljivost de_flat algoritma. Urađena je analiza osetljivosti generisanja površinske mreže kanala na metode poboljšanja DMT-a. Dobijeni rezultati pokazuju da su testirani algoritmi upotrebljivi ali da se mora obratiti pažnja kako se tokom postupka poboljšanja DMT-a ne bi narušila njegova morfologija. .
PB - Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd
T2 - Voda i sanitarna tehnika
T1 - Enhancement of digital elevation models for overland flow network delineation in urban catchments
T1 - Poboljšanje digitalnog modela terena za delineaciju površinskog tečenja na urbanim slivovima
EP - 28
IS - 6
SP - 19
VL - 39
UR - conv_246
ER -
@article{
author = "Leitao, Joao P. and Prodanović, Dušan and Maksimović, Čedo and Matos, José S.",
year = "2009",
abstract = "Algorithms to prepare Digital Elevation Models (DMTs) for hydraulic analysis are common practice; these are often called DMT enhancement algorithms, and are frequently the first step of the analysis to extract overland flow networks from DMTs. In this paper, conventional DMT enhancement algorithms are tested to assess their effect on the generation of overland flow networks; the de_flat algorithm is also evaluated in this study. A sensitivity analysis of the generated overland flow network for different DMT enhancement algorithms is carried out and presented here. The results obtained so far suggest that this type of algorithms can be used to prepare DMTs for hydraulic analysis, but a great amount of care needs to be taken in order to avoid destruction of the terrain morphology. ., Prilikom primene Digitalnih Modela Terena (DMT) za hidrauličke analize, uobičajena je praksa da se koriste algoritmi za njegovo pre-procesiranje i poboljšanje, posebno kada treba odrediti mrežu površinskih tokova. U ovom radu se testiraju klasični postupci poboljšanja DMT-a i njihov efekat na generisanu mrežu površinskih tokova, kao i upotrebljivost de_flat algoritma. Urađena je analiza osetljivosti generisanja površinske mreže kanala na metode poboljšanja DMT-a. Dobijeni rezultati pokazuju da su testirani algoritmi upotrebljivi ali da se mora obratiti pažnja kako se tokom postupka poboljšanja DMT-a ne bi narušila njegova morfologija. .",
publisher = "Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd",
journal = "Voda i sanitarna tehnika",
title = "Enhancement of digital elevation models for overland flow network delineation in urban catchments, Poboljšanje digitalnog modela terena za delineaciju površinskog tečenja na urbanim slivovima",
pages = "28-19",
number = "6",
volume = "39",
url = "conv_246"
}
Leitao, J. P., Prodanović, D., Maksimović, Č.,& Matos, J. S.. (2009). Enhancement of digital elevation models for overland flow network delineation in urban catchments. in Voda i sanitarna tehnika
Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd., 39(6), 19-28.
conv_246
Leitao JP, Prodanović D, Maksimović Č, Matos JS. Enhancement of digital elevation models for overland flow network delineation in urban catchments. in Voda i sanitarna tehnika. 2009;39(6):19-28.
conv_246 .
Leitao, Joao P., Prodanović, Dušan, Maksimović, Čedo, Matos, José S., "Enhancement of digital elevation models for overland flow network delineation in urban catchments" in Voda i sanitarna tehnika, 39, no. 6 (2009):19-28,
conv_246 .
