Validation of Streaklines as Recorders of Synoptic Flow Direction in a Deltaic Setting
Abstract
Knowledge of the flow patterns within distributary systems is key for understanding deltaic hydro- and morpho-dynamics, yet synoptic measurements of flow fields remain virtually nonexistent. As a means of overcoming this problem, a small number of studies have used biogenic surface films as synoptic flow tracers, under the assumption that biofilm streaklines are tangent to the local flow direction. Here we rigorously test this assumption and show that, despite flow patterns that change severely in space and time (over a range >270°), streaklines are relatively accurate synoptic flow tracers for the Wax Lake Delta, in Louisiana. When the incoming discharge was greater than 2400 m3/s with stable or falling tides, the streakline-derived flow direction departed from near bed flow direction measurements of 22.8° (root mean square). When the discharge was greater than 2400 m3/s and the tides were rising greater than 0.03 m/hr, they were accurate within 28.0°. Under conditions of discharge less than 2400 m3/s and tidal change less than a positive 0.03 m/hr, they were accurate within 33.3°, while during low discharge and rising tides they were accurate within 58.9°. Accuracy varied with distance from the delta, with proximal sites having greater precision. Our results demonstrate that amore »
- Authors:
-
- Univ. of Arkansas, Fayetteville, AR (United States)
- Univ. of Arkansas, Fayetteville, AR (United States); Univ. of New Orleans, LA (United States)
- Publication Date:
- Research Org.:
- Univ. of Arkansas, Fayetteville, AR (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
- OSTI Identifier:
- 1598317
- Grant/Contract Number:
- SC0016163
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Remote Sensing
- Additional Journal Information:
- Journal Volume: 12; Journal Issue: 1; Related Information: https://figshare.com/articles/TCM_and_streakling_dataset/10314245/1; Journal ID: ISSN 2072-4292
- Publisher:
- MDPI
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; Flow direction; validation; surface films; tracking; coastal hydraulics; remote sensing; hydrodynamics
Citation Formats
Cathcart, Christopher, Shaw, John B., and Amos, Micheal. Validation of Streaklines as Recorders of Synoptic Flow Direction in a Deltaic Setting. United States: N. p., 2020.
Web. doi:10.3390/rs12010148.
Cathcart, Christopher, Shaw, John B., & Amos, Micheal. Validation of Streaklines as Recorders of Synoptic Flow Direction in a Deltaic Setting. United States. https://doi.org/10.3390/rs12010148
Cathcart, Christopher, Shaw, John B., and Amos, Micheal. Thu .
"Validation of Streaklines as Recorders of Synoptic Flow Direction in a Deltaic Setting". United States. https://doi.org/10.3390/rs12010148. https://www.osti.gov/servlets/purl/1598317.
@article{osti_1598317,
title = {Validation of Streaklines as Recorders of Synoptic Flow Direction in a Deltaic Setting},
author = {Cathcart, Christopher and Shaw, John B. and Amos, Micheal},
abstractNote = {Knowledge of the flow patterns within distributary systems is key for understanding deltaic hydro- and morpho-dynamics, yet synoptic measurements of flow fields remain virtually nonexistent. As a means of overcoming this problem, a small number of studies have used biogenic surface films as synoptic flow tracers, under the assumption that biofilm streaklines are tangent to the local flow direction. Here we rigorously test this assumption and show that, despite flow patterns that change severely in space and time (over a range >270°), streaklines are relatively accurate synoptic flow tracers for the Wax Lake Delta, in Louisiana. When the incoming discharge was greater than 2400 m3/s with stable or falling tides, the streakline-derived flow direction departed from near bed flow direction measurements of 22.8° (root mean square). When the discharge was greater than 2400 m3/s and the tides were rising greater than 0.03 m/hr, they were accurate within 28.0°. Under conditions of discharge less than 2400 m3/s and tidal change less than a positive 0.03 m/hr, they were accurate within 33.3°, while during low discharge and rising tides they were accurate within 58.9°. Accuracy varied with distance from the delta, with proximal sites having greater precision. Our results demonstrate that a streakline-derived flow direction can characterize the spatiotemporal variability in the flow directions, but that the accuracy is significantly influenced by the hydrodynamic conditions and location within the network.},
doi = {10.3390/rs12010148},
journal = {Remote Sensing},
number = 1,
volume = 12,
place = {United States},
year = {Thu Jan 02 00:00:00 EST 2020},
month = {Thu Jan 02 00:00:00 EST 2020}
}
Web of Science
Works referenced in this record:
Profiling risk and sustainability in coastal deltas of the world
journal, August 2015
- Tessler, Z. D.; Vorosmarty, C. J.; Grossberg, M.
- Science, Vol. 349, Issue 6248
Quantitative metrics that describe river deltas and their channel networks
journal, January 2011
- Edmonds, Douglas A.; Paola, Chris; Hoyal, David C. J. D.
- Journal of Geophysical Research, Vol. 116, Issue F4
Effective sea-level rise and deltas: Causes of change and human dimension implications
journal, February 2006
- Ericson, J.; Vorosmarty, C.; Dingman, S.
- Global and Planetary Change, Vol. 50, Issue 1-2
International Year of Deltas 2013: A proposal
journal, October 2011
- Foufoula-Georgiou, Efi; Syvitski, James; Paola, Chris
- Eos, Transactions American Geophysical Union, Vol. 92, Issue 40
Dynamic controls on shallow clinoform geometry: Mekong Delta, Vietnam
journal, September 2017
- Eidam, E. F.; Nittrouer, C. A.; Ogston, A. S.
- Continental Shelf Research, Vol. 147
Observations and scaling of tidal mass transport across the lower Ganges–Brahmaputra delta plain: implications for delta management and sustainability
journal, January 2019
- Hale, Richard; Bain, Rachel; Goodbred Jr., Steven
- Earth Surface Dynamics, Vol. 7, Issue 1
Congruent Bifurcation Angles in River Delta and Tributary Channel Networks
journal, November 2017
- Coffey, Thomas S.; Shaw, John B.
- Geophysical Research Letters, Vol. 44, Issue 22
Dynamics of river mouth deposits: DYNAMICS OF RIVER MOUTH DEPOSITS
journal, July 2015
- Fagherazzi, Sergio; Edmonds, Douglas A.; Nardin, William
- Reviews of Geophysics, Vol. 53, Issue 3
Modeling of a mixed-load fluvio-deltaic system: DELTA MODELING
journal, March 2010
- Geleynse, N.; Storms, J. E. A.; Stive, M. J. F.
- Geophysical Research Letters, Vol. 37, Issue 5
Distributary Channel Networks as Moving Boundaries: Causes and Morphodynamic Effects
journal, July 2019
- Ke, Wun‐Tao; Shaw, John B.; Mahon, Robert C.
- Journal of Geophysical Research: Earth Surface, Vol. 124, Issue 7
Three-dimensional numerical model for open-ehannels with free-surfaee variations
journal, March 2000
- Meselhe, E. A.; Sotiropoulos, F.
- Journal of Hydraulic Research, Vol. 38, Issue 2
Large-scale flow structures and stability in shallow flows
journal, September 2004
- Socolofsky, Scott A.; Jirka, Gerhard H.
- Journal of Environmental Engineering and Science, Vol. 3, Issue 5
Sediment transport and deposition at river mouths: A synthesis
journal, January 1977
- Wright, L. D.
- Geological Society of America Bulletin, Vol. 88, Issue 6
Analysis and numerical modeling of the flow and sand dynamics in the lower Song Hau channel, Mekong Delta
journal, September 2017
- Xing, F.; Meselhe, E. A.; Allison, M. A.
- Continental Shelf Research, Vol. 147
The damping of ocean waves by surface films: A new look at an old problem
journal, January 1989
- Alpers, Werner; Hühnerfuss, Heinrich
- Journal of Geophysical Research, Vol. 94, Issue C5
Satellite detection of natural films on the ocean surface
journal, November 1996
- Espedal, Heidi A.; Johannessen, Ola M.; Knulst, Johan
- Geophysical Research Letters, Vol. 23, Issue 22
Classification of sea slicks by multifrequency radar techniques: New chemical insights and their geophysical implications
journal, January 1994
- Hühnerfuss, Heinrich; Gericke, Arne; Alpers, Werner
- Journal of Geophysical Research, Vol. 99, Issue C5
From multi-sensor tracking of sea surface films to mesoscale and sub-mesoscale sea surface current fields
conference, October 2013
- Seppke, Benjamin; Gade, Martin; Dreschler-Fischer, Leonie
- SPIE Remote Sensing, SPIE Proceedings
Flow patterns and morphology of a prograding river delta: DELTA FLOW PATTERNS
journal, February 2016
- Shaw, John B.; Mohrig, David; Wagner, R. Wayne
- Journal of Geophysical Research: Earth Surface, Vol. 121, Issue 2
Measuring subaqueous progradation of the Wax Lake Delta with a model of flow direction divergence
journal, January 2018
- Shaw, John B.; Estep, Justin D.; Whaling, Amanda R.
- Earth Surface Dynamics, Vol. 6, Issue 4
Airborne radar imaging of subaqueous channel evolution in Wax Lake Delta, Louisiana, USA
journal, May 2016
- Shaw, John B.; Ayoub, Francois; Jones, Cathleen E.
- Geophysical Research Letters, Vol. 43, Issue 10
Hydrological connectivity in river deltas: The first‐order importance of channel‐island exchange
journal, April 2015
- Hiatt, Matthew; Passalacqua, Paola
- Water Resources Research, Vol. 51, Issue 4
Inferring surface currents within submerged, vegetated deltaic islands and wetlands from multi-pass airborne SAR
journal, June 2018
- Ayoub, F.; Jones, C. E.; Lamb, M. P.
- Remote Sensing of Environment, Vol. 212
Deriving daily water levels from satellite altimetry and land surface temperature for sparsely gauged catchments: A case study for the Mekong River
journal, June 2018
- Pham, Hung T.; Marshall, Lucy; Johnson, Fiona
- Remote Sensing of Environment, Vol. 212
An improved approach to monitoring Brahmaputra River water levels using retracked altimetry data
journal, June 2018
- Huang, Qi; Long, Di; Du, Mingda
- Remote Sensing of Environment, Vol. 211
Distributary Channel Networks as Moving Boundaries: Causes and Morphodynamic Effects
text, January 2019
- Ke, Wun-Tao; Shaw, John; Mahon, Robert
- Open Science Framework