Extratropical Storm-Induced Coastal Inundation: Scituate, MA

Model Evaluation Plan March 8, 2011

Steps1. Tide comparison (using Scituate tide data)2. Wave (alone) comparison (using NDBC buoy data)

(w/wo wind adjustment?)3. 2005/07 Storms (without waves) inundation (using

Scituate HWM, NDBC buoy data)4. 2005-07 Storm (with waves) inundation (using Scituate

HWM, NDBC buoy data)5. 2010 Storm (with waves) inundation (using Scituate

HWMs and met data, NDBC buoy data)6. Synthesis

Scituate, MA The Test Site:

44013

A 3-D View of the bathymetry of the Scituate

Nested

The Scituate Grid The Northeast Coastal Ocean Forecast System (NECOFS) grid

Horizontal Resolution:10 m to 1 km

Cell number:xxxxx

Node number:xxxxx

Tide gauge stationMet station

Buoys with wave measurements

Station No. Longitude(W) Latitude (N) 44004 70.433 38.484 44005 69.140 43.189 44007 70.144 43.531 44008 69.431 40.500 44009 74.702 38.464 44013 70.691 42.354 44017 72.046 40.691 44018 69.294 41.259 44024 65.927 42.312 44025 73.166 40.250 44027 67.314 44.273 44029 70.570 42.520 44030 70.418 43.183 44031 70.060 43.570 44032 69.358 43.715 44033 69.000 44.060 44034 68.110 44.110 44035 67.020 44.890 44037 67.883 43.484 44038 66.550 43.633

Total 20 stations

44013

Transects-Elevation-Mass Flux-Wave Energy Flux (?)

Model-Model Comparisons

Model-DataComparison

Points-Tide gauge-E. Foster Bridge-Harbor Master/Town Pier-Cedar Point depression-Jericho Road-Center of harbor mouth transect

44 Rebecca Road

STATIONS NODE NUMBER LONGITUDE LATITUDE A 3078 -70.7233658

42.2058182 B 5301

-70.7239990 42.2021598 C 5446

-70.7248611 42.1981239 D 4216

-70.7214050 42.1923218 E 2543

-70.7172089 42.1955299 F 5140

-70.7198868 42.1993752 G 3484

-70.7163010 42.2028236 H 2792

-70.7182312 42.2070961 I 1898

-70.7178879 42.2078705

SECTIONS FROM NODE NUMBER LONGITUDE LATITUDE TO NODE NUMBER LONGITUDE LATITUDE

Section A2835 -70.7205048 42.2074432 3728 -70.7176056 42.2053452Section B3729 -70.7163162 42.2017404 3730-70.7152786 42.2042465

Section C 3401 -70.7259140 42.1923523 3576 -70.7204742 42.1923676

Points and sections in the gridA

B

C

D

E

F

G

H IA1

A2

C1C2

B2

B1

Sites and sections in the model grid

The FVCOM Validation for Tidal Simulation

Tide Freq Amp (m) Amp error (m) Phase (oG) Phase error (oG) M2 0.0805114 1.2729 0.021 339.21 0.97 N2 0.0789992 0.2858 0.022 43.60 4.79 S2 0.0833333 0.1669 0.018 154.03 8.13 K1 0.0417807 0.1254 0.004 183.54 2.02 O1 0.0387307 0.0988 0.004 76.93 2.46

The 2005 Nor’easter Storm

Currents Currents-Waves May 25, 05 AM (GMT)

Site H

Winds

Sea Level

Vertically averaged velocity

Site G (entrance)

Winds

Sea Level

Vertically averaged velocity

The water transports on Sections A, B and C

Currents Currents-Waves

2007 Nor’easter Storm

April 18 , 04 AM (GMT)

Site H (flooded area)

Winds

Sea Level

Vertically averaged velocity

Preliminary Results for the December 27 2011 Storm

7 EST Dec. 26 7 EST Dec. 27 7 EST Dec. 28

hΔp/Δx = (10m)(20mb)/200km = 0.1 kg/(ms2)Wind stress (20 m/s) = 1 kg/(ms2) => 10%

2010 December 27 08 GMT

Steps1. Tide comparison (using Scituate tide data)2. Wave (alone) comparison (using NDBC buoy data)

(w/wo wind adjustment?)3. 2005/07 Storms (without waves) inundation (using

Scituate HWM, NDBC buoy data)4. 2005-07 Storm (with waves) inundation (using Scituate

HWM, NDBC buoy data)5. 2010 Storm (with waves) inundation (using Scituate

HWMs and met data, NDBC buoy data)6. Synthesis