====== SUMMARY ======

Title: Tidal dispersion in short estuaries

Principal investigator: 
W. Rockwell Geyer, WHOI, Woods Hole, MA, USA

Co-investigators: 
Adrian Mikhail P. Garcia, MIT-WHOI Joint Program, Woods Hole, MA, USA (model, field)
Wouter Kranenburg, Deltares, Netherlands, formerly WHOI AOSE (field)

Contact:
Adrian Mikhail P. Garcia, agarcia@whoi.edu

Size:
35.2 GB

File format:
MAT-files, version 7.3

Description:
This dataset includes model output from an idealized estuary moodel (16 files) and field measurements from the North River, Marshfield, MA (1 file) used in support of the manuscript "Tidal dispersion in short estuaries" by A.P. Garcia and W.R. Geyer.


====== MODEL DATA ======

Data description:
This model output was generated for an idealized estuary based on the North River and simulated using the Regional Ocean Modeling System and loaded into MATLAB as MAT-files. The model was run for 16 different forcing conditions, corresponding to 4 values of river discharge and 4 values of tidal forcing at the mouth. 

File name:
The following naming convention is adopted for each of the 16 runs:
	"ocean_nriv_idl_crv_r100_{tide}_{river}.mat"
corresponding to the following values for tidal and river forcing
	{tide}: weak (0.9 m), neap (1.2 m), intm (1.5 m), sprg (1.8 m)
	{river}: q01 (1 m3/s), q03 (3 m3/s), q10 (10 m3/s), q30 (30 m3/s)

Variables:
Cs	ROMS vertical stretching function at rho-points
Cs_w	ROMS vertical stretching function at w-points
Ks	eddy diffusivity for salinity (m2/s)
Kv	eddy viscosity for momentum (m2/s)
S	salinity (psu)
angle	angle between xi-axis and East
bustr	bottom stress at u-points
bvstr	bottom stress at v-points
cD	quadratic drag coefficient
curvgrid logical for use of curvilinear grid
f	Coriolis frequency (rad/s)
finfo	file info for original ROMS data output
fname 	file name
h	depth
hc	critical depth for ROMS vertical coordinate
mask	land-sea mask, 1=sea, 0=land
pm	inverse grid spacing along xi-axis (1/m)
pn	inverse grid spacing along eta-axis (1/m)
rho0	base oceanic density (kg/m3)
s	ROMS vertical transformation function at rho-points
s_w	ROMS vertical transformation function at w-points
t	time (s)
u	velocity in xi-direction (m/s)
v	velocity in eta-direction (m/s)
w	vertical velocity (m/s)
wetdry_u land-sea mask for wetting and drying at u-points
x 	grid coordinate in x (m)
y	grid coordinate in y (m)
z0	bottom roughness for log-law stress (m)
zeta	water surface elevation (m)


====== FIELD DATA ======

Data description:
These shipboard measurements were taken by casts with an RBR conductivity-temperature-depth (CTD) sensor along the channel of the North River estuary, located in Marshfield, MA. Surveys were conducted on small boats by field crew consisting of: W. Rockwell Geyer (WHOI), Wouter Kranenburg (formerly WHOI), Dave Ralston (WHOI), Adrian Mikhail Garcia (WHOI), and Jay Sisson (WHOI). Measurements span over the period April-July 2017, covering a variety of river and tidal conditions. This dataset comes from the same field campaign presented in the following published articles:
	1. Kranenburg et al (2019), Journal of Physical Oceanography, https://doi.org/10.1175/JPO-D-18-0175.1
	2. Bo et al (2021), Journal of Geophysical Research: Oceans, https://doi.org/10.1029/2021JC017327

File name:
"data_sal_long.mat"

Variables:
boxnr	index for different location of CTD casts
dn	MATLAB date number (days)
lat	latitude (degrees)
lon	longitude (degrees)
obs	optical backscatter (NTU)
s	salinity (psu)
survey_nr index for different survey number on each day
T	temperature (deg C)
xNR	along-channel coordinate in North River (m)
yNR	across-channel coordinate in North River (m)
xutm	x-coordinate in UTM zone 19T (m)
yutm	y-coordinate in UTM zone 19T (m)
z	vertical coordinate (m)
zmin	maximum depth for cast (m)