Title

Data From: Present and Future Flood Hazard in the Lower Columbia River Estuary: Changing Flood Hazards in the Portland-Vancouver Metropolitan Area

Published In

Journal of Geophysical Research: Oceans

Document Type

Dataset

Publication Date

3-2020

Subjects

Oceanography -- Columbia River Estuary (Or. and Wash.) -- Mathematical models, Columbia River Estuary (Or. and Wash.)

Abstract

Over the next century, model projections suggest that river runoff in the Pacific Northwest will increase during the winter season and that sea level rise (SLR) may rise more than a meter. To investigate the resulting changes in flood hazard, we numerically model the February 1996 and January 1923 floods (the largest and third largest Willamette River floods since 1860) under present and potential future run-off and sea level scenarios. First, we reproduce the actual February 1996 flood to within a root mean square error of 0.05 m (N = 7) for peak water levels. Next, we run scenarios in which three SLR scenarios (0 m, 0.6 m, and 1.5 m) are combined with two river run-off scenarios (0% and 10% run-off increase). Then the slightly larger 1923 flood scenario is run, but with modern (higher than historical) Columbia River flow. The results indicate that a 10% increase in river discharge would increase the magnitude of the 2550 y event to a 100 y event. Overall, the type and magnitude of future flood hazards vary with reach. The Portland/Vancouver Metropolitan area is most sensitive to changes in runoff, with a smaller change of ~0.20.26 m per meter of SLR. By contrast, coastal regions are quite sensitive to amplified sea level and exhibit non-linear responses based on changes to river slope and tides. Between the fluvial region and the estuary, a region of compound flood hazard exists that is sensitive to changes in river discharge, sea level, tides, and storm surge.

Description

The data supports the manuscript: Helaire, L.,Talke,S.A., Chang, H., and Jay, D.A., (2020). Present and Future Flood Hazard in the Lower Columbia River Estuary: Changing Flood Hazards in the Portland-Vancouver Metropolitan Area, Journal of Geophysical Research: Oceans.

Each of the datasets below are preceded by data descriptions.

DOI

10.15760/cee-data.04

Persistent Identifier

https://archives.pdx.edu/ds/psu/32370

discharge_bnd_A_description.pdf (14 kB)
Data description: A scenario

discharge_bnd_A.txt (504 kB)
Discharge boundary conditions A scenario

discharge_bnd_ASpring_description.pdf (15 kB)
Data description: A Spring scenario

discharge_bnd_A_Spring.txt (504 kB)
Discharge boundary conditions A Spring scenario

discharge_bnd_B_description.pdf (15 kB)
Data description: B scenario

discharge_bnd_B.txt (504 kB)
Discharge boundary conditions B scenario

tidal_bnd_B1Spring_description.pdf (16 kB)
Data description: B1 Spring

tidal_bnd_B1Spring.txt (212 kB)
Discharge boundary conditions B1 Spring

Beaver_xsec_discharge_description.pdf (10 kB)
Data description: Beaver Army Terminal

Beaver_xsec_discharge.txt (113 kB)
Cross-sectional discharge at Beaver Army Termina

tidal_bnd_harmonic_description.pdf (16 kB)
Data description: Harmonic boundary conditions

tidal_bnd_harmonic.txt (1 kB)
Harmonic boundary conditions

tidal_bnd_surge_description.pdf (16 kB)
Data description: Boundary conditions with storm surge

tidal_bnd_surge.txt (490 kB)
Boundary conditions with storm surge

baseline_water_level_description.pdf (16 kB)
Data description: Baseline water level

baseline_water_level.txt (733 kB)
Baseline water level

Bathymetry files description_A_x.pdf (40 kB)
Data description: Bathymetry file A_x

A_x.txt (104 kB)
x coordinate [m] for A domain

Bathymetry files description_A_y.pdf (40 kB)
Data description: Bathymetry file A_y

A_y.txt (93 kB)
y coordinate [m] for A domain

Bathymetry files description_A_z.pdf (40 kB)
Data description: Bathymetry file A_z

A_z.txt (86 kB)
depth [m] positive upwards for A domain

Bathymetry files description_B_x.pdf (40 kB)
Data description: Bathymetry file B_x

B_x.txt (342 kB)
x coordinate [m] for B domain

Bathymetry files description_B_y.pdf (55 kB)
Data description: Bathymetry file B_y

B_y.txt (328 kB)
y coordinate [m] for B domain

Bathymetry files description_B_z.pdf (40 kB)
Data description: Bathymetry file B_z

B_z.txt (261 kB)
depth [m] positive upwards for B domain

Bathymetry files description_C_x.pdf (40 kB)
Data description: Bathymetry file C_x

C_x.txt (315 kB)
x coordinate [m] for C domain

Bathymetry files description_C_y.pdf (40 kB)
Data description: Bathymetry file C_y

C_y.txt (233 kB)
y coordinate [m] for C domain

Bathymetry files description_C_z.pdf (40 kB)
Data description: Bathymetry file C_z

C_z.txt (238 kB)
depth [m] positive upwards for C domain

Bathymetry files description_DL_x.pdf (40 kB)
Data description: Bathymetry file DL_x

DL_x.txt (2212 kB)
x coordinate [m] for DLower domain

Bathymetry files description_DL_y.pdf (40 kB)
Data description: Bathymetry file DL_y

DL_y.txt (1320 kB)
y coordinate [m] for DLower domain

Bathymetry files description_DL_z.pdf (40 kB)
Data description: Bathymetry file DL_z

DL_z.txt (1466 kB)
depth [m] positive upwards for DLower domain

Bathymetry files description_DU_x.pdf (40 kB)
Data description: Bathymetry file DU_x

DU_x.txt (485 kB)
x coordinate [m] for Dupper domain

Bathymetry files description_DU_y.pdf (40 kB)
Data description: Bathymetry file DU_y

DU_y.txt (285 kB)
y coordinate [m] for DUpper domain

Bathymetry files description_DU_z.pdf (40 kB)
Data description: Bathymetry file DU_z

DU_z.txt (328 kB)
depth [m] positive upwards for DUpper domain

Bathymetry files description_DW_x.pdf (40 kB)
Data description: Bathymetry file DW_x

DW_x.txt (641 kB)
x coordinate [m] for DWill domain (Washington South FIPS)

Bathymetry files description_DW_y.pdf (40 kB)
Data description: Bathymetry file DW_y

DW_y.txt (451 kB)
y coordinate [m] for DWill domain

Bathymetry files description_DW_z.pdf (40 kB)
Data description: Bathymetry file DW_z

DW_z.txt (490 kB)
depth [m] positive upwards for DWill domain

Bathymetry files description_E_x.pdf (40 kB)
Data description: Bathymetry file E_x

E_x.txt (122 kB)
x coordinate [m] for E domain

Bathymetry files description_E_y.pdf (40 kB)
Data description: Bathymetry file E_y

E_y.txt (76 kB)
y coordinate [m] for E domain

Bathymetry files description_E_z.pdf (40 kB)
Data description: Bathymetry file E_z

E_z.txt (84 kB)
depth [m] positive upwards for E domain

Inundation files description_DLower_x.pdf (34 kB)
Data description: x coordinate [m] for DLower domain

DLower_x.txt (2486 kB)
x coordinate [m] for DLower domain

Inundation files description_DLower_y .pdf (34 kB)
Data description: y coordinate [m] for DLower domain

DLower_y.txt (2486 kB)
y coordinate [m] for DLower domain

Inundation files description_DLower_z_A0.pdf (34 kB)
Data description: water level in the DLower domain

DLower_z_A0.txt (2366 kB)
water level in the DLower domain

Inundation files description_DLower_z_B2.pdf (34 kB)
Data description: DLower_z_B2

DLower_z_B2.txt (2366 kB)
water level in the DLower domain (NAVD88

Inundation files description_DUpper_x.pdf (34 kB)
Data description: DUpper_x

DUpper_x.txt (545 kB)
x coordinate [m] for DUpper domain

Inundation files description_DUpper_y.pdf (34 kB)
Data description: DUpper_y

DUpper_y.txt (664 kB)
y coordinate [m] for DUpper domain

Inundation files description_DUpper_z_A0.pdf (34 kB)
Data description: DUpper_z_A0

DUpper_z_A0.txt (454 kB)
water level in the DUpper domain (NAVD88)

Inundation files description_DUpper_z_B2.pdf (34 kB)
Data description: DUpper_z_B2

DUpper_z_B2.txt (468 kB)
water level in the DUpper domain (NAVD88)

Inundation files description_DWillamette_x.pdf (34 kB)
Data description: DWillamette_x

DWillamette_x.txt (756 kB)
x coordinate [m] for DWillamette domain

Inundation files description_DWillamette_y.pdf (34 kB)
Data description: DWillamette_y

DWillamette_y.txt (895 kB)
y coordinate [m] for DWillamette domain

Inundation files description_DWillamette_z_A0.pdf (41 kB)
Data description: DWillamette_z_A0

DWillamette_z_A0.txt (689 kB)
water level in the DWillamette domain (NAVD88)

Inundation files description_DWillamette_z_B2.pdf (34 kB)
Data description: DWillamette_z_B2

DWillamette_z_B2.txt (741 kB)
water level in the DWillamette domain (NAVD88)

tidal_tidal_3locations_description.pdf (16 kB)
Data description: tidal_3locations

tidal_timing_3stations.txt (175 kB)
modeled water level data for the baseline scenario and the A0 Spring scenario at three gauge stations

Surge_magnitude_description.pdf (59 kB)
Data description: Surge magnitude

surge_magnitude.txt (29 kB)
surge magnitude

Description for A0_wl_ship_channel.pdf (34 kB)
Data description: A0_wl_ship_channel

A0_wl_ship_channel.txt (652 kB)
A0_wl_ship_channel

Description for A0NS_Spr_wl_ship_channel.pdf (34 kB)
Data description: A0NS_Spr_wl_ship_channel

A0NS_spr_wl_ship_channel.txt (652 kB)
A0NS_Spr_wl_ship_channel

Description for A0NS_wl_ship_channel.pdf (34 kB)
Data description: A0NS_wl_ship_channel

A0NS_wl_ship_channel.txt (652 kB)
A0NS_wl_ship_channel

Description for A1NS_wl_ship_channel.pdf (34 kB)
Data description: A1NS_wl_ship_channel

A1NS_wl_ship_channel.txt (652 kB)
A1NS_wl_ship_channel

Description for B0_wl_ship_channel.pdf (34 kB)
Data description: B0_wl_ship_channel

B0_wl_ship_channel.txt (652 kB)
B0_wl_ship_channel

Description for B0NS_wl_ship_channel.pdf (34 kB)
Data description: B0NS_wl_ship_channel

B0NS_wl_ship_channel.txt (652 kB)
B0NS_wl_ship_channel

Description for B1_Spr_wl_ship_channel.pdf (34 kB)
Data description: B1_Spr_wl_ship_channel

B1_Spr_wl_ship_channel.txt (652 kB)
B1_Spr_wl_ship_channel

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