Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Towards automated substrate mapping with low-co...
Search
Daniel Buscombe
March 26, 2015
Science
0
110
Towards automated substrate mapping with low-cost sidescan sonar
2nd Multibeam in Rivers Workshop, Flagstaff, AZ
Daniel Buscombe
March 26, 2015
Tweet
Share
More Decks by Daniel Buscombe
See All by Daniel Buscombe
Mapping echoes: the acoustics of riverbed and shallow seafloors
dbuscombe
0
180
Exploring Sand Dune Scaling Relations in a Canyon River: Colorado River in Grand Canyon
dbuscombe
1
120
Automated substrate characterization using low-cost sidescan sonar
dbuscombe
0
170
Particle Size by Proxy: Decoding the Textural Information in Scattered Sound and Light
dbuscombe
0
86
Structure-from-Motion, Grand Canyon style
dbuscombe
0
170
Particle Size by Proxy: Decoding the Textural Information in Remotely Sensed Landforms
dbuscombe
0
140
Stochasticity of riverbed backscattering, with implications for acoustical classification of non-cohesive sediment using multibeam sonar
dbuscombe
0
97
The Digital Grain Size Web Application
dbuscombe
0
170
Addressing scale dependence in roughness and morphometric statistics derived from point cloud data
dbuscombe
0
54
Other Decks in Science
See All in Science
機械学習 - ニューラルネットワーク入門
trycycle
PRO
0
860
高校生就活へのDA導入の提案
shunyanoda
0
6k
データベース11: 正規化(1/2) - 望ましくない関係スキーマ
trycycle
PRO
0
950
Accelerated Computing for Climate forecast
inureyes
0
120
AI(人工知能)の過去・現在・未来 —AIは人間を超えるのか—
tagtag
0
110
機械学習 - K-means & 階層的クラスタリング
trycycle
PRO
0
1.1k
機械学習 - 授業概要
trycycle
PRO
0
250
07_浮世満理子_アイディア高等学院学院長_一般社団法人全国心理業連合会代表理事_紹介資料.pdf
sip3ristex
0
640
デジタルアーカイブの教育利用促進を目指したメタデータLOD基盤に関する研究 / Research on a Metadata LOD Platform for Promoting Educational Uses of Digital Archives
masao
0
100
点群ライブラリPDALをGoogleColabにて実行する方法の紹介
kentaitakura
1
450
実力評価性能を考慮した弓道高校生全国大会の大会制度設計の提案 / (konakalab presentation at MSS 2025.03)
konakalab
2
210
深層学習を用いた根菜類の個数カウントによる収量推定法の開発
kentaitakura
0
190
Featured
See All Featured
Designing Experiences People Love
moore
142
24k
Testing 201, or: Great Expectations
jmmastey
45
7.7k
Into the Great Unknown - MozCon
thekraken
40
2.1k
RailsConf 2023
tenderlove
30
1.2k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
31
2.7k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
jQuery: Nuts, Bolts and Bling
dougneiner
65
7.9k
A Modern Web Designer's Workflow
chriscoyier
697
190k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.5k
Keith and Marios Guide to Fast Websites
keithpitt
411
23k
Writing Fast Ruby
sferik
629
62k
The Power of CSS Pseudo Elements
geoffreycrofte
79
6k
Transcript
Towards automated substrate mapping with low-cost sidescan sonar Daniel Buscombe,
GCMRC-USGS MBES in Rivers Workshop Flagstaff, AZ, March 2015
None
10cm transducer
Starboard scans Colorado River in Grand Canyon
Penobscot River, Maine
30 miles of Marble Canyon in 2013 30 miles of
Eastern Grand Canyon in 2014 Several reaches in Glen and Marble Canyons repeat mapped 2013 - 2015
None
w = cos (θ) = ℎ For given h, shadow
length w increases as decreases θ = sin Assuming h constant over small window: Step 1: calculate w for each window Step 2: remove bias in w caused by sonar geometry Object height h and shadow length w are related by: w = w π/2 sin−1(c/tf) w = w dx
RM30 Marble Canyon Colorado River Preliminary data – do not
cite
RM61 Marble Canyon Colorado River Preliminary data – do not
cite
Dog River, Mobile May, Alabama. Credit: Allen Aven, Dauphin Island
Sea Lab 200 kHz echosounder: full waveform 1st echo 2nd echo Chap 3.1-3.2, Penrose et al. (2005) “Acoustic Techniques for Seabed Classification” RoxAnn
‘Roughness’ ‘Hardness’ Volume scattering coefficients K=3 means acoustic ‘classes’ Preliminary
data – do not cite
Glen Canyon Substrate/Vegetation Mapping Lasers spaced 9cm
Glen Canyon Vegetation/substrate Mapping ‘Roughness’ ‘Hardness’ 3 acoustic classes Preliminary
data – do not cite
PyHum (Beta) software Collaborations/data welcome!!! https://pypi.python.org/pypi/PyHum pip install PyHum https://github.com/dbuscombe-usgs/PyHum
git clone https://github.com/dbuscombe-usgs/PyHum.git
Thanks! • Paul Grams, Ted Melis, Mike Yard: GCMRC •
Sean Smith: U Maine • Dan Hamill, Joe Wheaton: USU • Allen Avery: Dauphin Island Sea Lab Upper Granite Gorge, Colorado River, May 2014
Upper Marble Canyon, May 2012
None