Dataset: Sediment Properties

Name: Sediment properties collected off the Alabama coast before and after Hurricane Sally, 2020-2021
Published: 2023-12-07
Keywords: tropical cyclone, sediment transport, grain size distribution, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.916071.1

Spatial Extent: N:30.2464 E:-87.9888 S:30.0479 W:-88.289

Temporal Extent: 2020-09-10 - 2021-05-26

Project:

CAREER: Mechanisms of bioturbation and ecosystem engineering by benthic infauna (Bioturbation and Ecosystem Engineering)

Principal Investigator:

Kelly Dorgan (Dauphin Island Sea Lab, DISL)

Student:

William Cyrus Clemo (University of South Alabama, USA)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2023-12-07

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Sediment properties collected off the Alabama coast before and after Hurricane Sally, 2020-2021

Abstract:

This dataset consists of profiles of sediment grain size distribution, porosity, and organic content in addition to bottom water salinity and temperature collected from 9 sites at 5, 12 and 20 meters depth in the Northern Gulf of Mexico off the Alabama (USA) coast before and after Hurricane Sally (2020).

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2023-12-07	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.916071.1	2023-12-07

Methods & Sampling

Sediment cores (9.6 cm inner diameter) were collected with an Ocean Instruments MC-400 multicorer or via SCUBA diving at each site and timepoint. Grain size was measured in the top 8-12 cm of sediment. 1-2 cores were sectioned into 1 cm increments and dried at 65 °C for 48 h. Dried samples were placed in a muffle furnace at 550 °C for 4 h to combust sediment organic matter. Porosity and organic content were calculated from the sediment mass differences before and after drying and combusting, respectively. Combusted sediment was then placed in a 1% sodium hexametaphosphate solution for at least 3 weeks to deflocculate. After weeks of deflocculating, clumps of mud often remained intact in muddier samples, so all samples were gently rubbed with a gloved finger on a 63 μm sieve to break up mud clumps. The mud was then washed through the sieve and combined with the sand retained on the sieve. After breaking up clumps, we measured grain size distribution using a Malvern Mastersizer 3000. For each sample, 5 measurements were averaged and then analyzed using Gradistat (Kenneth Pye Associates, LTD.).

Bottom water salinity and temperature (° C) measured at each site and timepoint using a CTD (conductivity, temperature, depth) instrument array.

Data Processing Description

For each sediment sample, 5 Malvern Mastersizer measurements were averaged and then analyzed using Gradistat v9.1 (Kenneth Pye Associates, LTD.).

Data Files

File
916071_v1_sediment.csv (Comma Separated Values (.csv), 818.79 KB) MD5:429884cd7abab2b30990082db029cf7b Primary data file for dataset ID 916071, version 1

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1844910

Deployments

None available yet

Instruments

CTD - fixed

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: CTD - fixed

Generic Description:

A reusable instrument that always simultaneously measures conductivity and temperature (for salinity) and pressure (for depth).

This term applies to CTDs that are fixed and do not measure by profiling through the water column. For profiling CTDs, see https://www.bco-dmo.org/instrument/417.

Multi Corer

Supplied Name: Ocean Instruments MC-400 multicorer

Supplied Description:

Ocean Instruments MC-400 multicorer: Core collection.

Instrument Type

Generic Name: Multi Corer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/51/

Generic Description:

The Multi Corer is a benthic coring device used to collect multiple, simultaneous, undisturbed sediment/water samples from the seafloor. Multiple coring tubes with varying sampling capacity depending on tube dimensions are mounted in a frame designed to sample the deep ocean seafloor. For more information, see Barnett et al. (1984) in Oceanologica Acta, 7, pp. 399-408.

Particle Size Analyzer

Supplied Name: Malvern Mastersizer 3000

Supplied Description:

Malvern Mastersizer 3000: Grain size analysis was done on a Malvern Mastersizer 3000 particle analyzer.

Instrument Type

Generic Name: Particle Size Analyzer

Generic Description:

Particle size analysis, particle size measurement, or simply particle sizing is the collective name of the technical procedures, or laboratory techniques which determines the size range, and/or the average, or mean size of the particles in a powder or liquid sample.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
Site	Site name includes transect (W: West, M: Middle, E: East) and depth (05: 5m, 12: 12m, 20: 20m) at which samples were collected	unitless	site
Latidude	site latitude, south is negative	decimal degrees	lat
Longitude	site longitude, west is negative	decimal degrees	lon
WaterDepth_m	site depth	m	depth
Date	sampling date Format: %Y-%m-%d	calendar date	date
TimeAfterSally_d	days after Hurricane Sally landfall	days	time_inc
Salinity	site bottom water salinity	unitless	sal
Temperature_degC	site bottom water temperature	degrees Celsius	temperature
Replicate	core replicate number	unitless	replicate
SedimentDepth_cm	core sediment section depth	cm	depth_core
WaterContentFraction	sediment water content	unitless	samp_fraction
PorosityFraction	sediment porosity	unitless	samp_fraction
OrganicContentFraction	sediment organic content	unitless	samp_fraction
MEANGrainSize_um	mean grain size, um scale	um	sed_grain_size
SORTING_um	grain size sorting, um scale	unitless	sed_grain_size
SKEWNESS_um	grain size skewness, um scale	unitless	sed_grain_size
KURTOSIS_um	grain size kurtosis, um scale	unitless	sed_grain_size
MEANGrainSize_phi	mean grain size, phi scale	phi	sed_grain_size
SORTING_phi	grain size sorting, phi scale	unitless	sed_grain_size
SKEWNESS_phi	grain size skewness, phi scale	unitless	sed_grain_size
KURTOSIS_phi	grain size kurtosis, phi scale	unitless	sed_grain_size
MEANGrainSizeDescription	mean grain size description	unitless	sed_grain_size
SORTINGDescription	grain size sorting description	unitless	sed_grain_size
SKEWNESSDescription	grain size skewness description	unitless	sed_grain_size
KURTOSISDescription	grain szie kurtosis description	unitless	sed_grain_size
MODE1_um	grain size mode 1, um scale	um	sed_grain_size
MODE2_um	grain size mode 2, um scale	um	sed_grain_size
MODE3_um	grain size mode 3, um scale	um	sed_grain_size
MODE1_phi	grain size mode 1, phi scale	phi	sed_grain_size
MODE2_phi	grain size mode 2, phi scale	phi	sed_grain_size
MODE3_phi	grain size mode 3, phi scale	phi	sed_grain_size
D10_um	10th percentile of grain size, um scale	um	sed_grain_size
D50_um	50th percentile of grain size, um scale	um	sed_grain_size
D90_um	90th percentile of grain size, um scale	um	sed_grain_size
D10_phi	10th percentile of grain size, phi scale	phi	sed_grain_size
D50_phi	50th percentile of grain size, phi scale	phi	sed_grain_size
D90_phi	90th percentile of grain size, phi scale	phi	sed_grain_size
GRAVELFraction	sample fraction consisting of gravel-sized particles	unitless	gravel
SANDFraction	sample fraction consisting of sand-sized particles	unitless	sand
MUDFraction	sample fraction consisting of mud-sized particles	unitless	mud
VCOARSEGRAVELFraction	sample fraction consisting of very coarse gravel-sized particles	unitless	gravel
COARSEGRAVELFraction	sample fraction consisting of coarse gravel-sized particles	unitless	gravel
MEDIUMGRAVELFraction	sample fraction consisting of medium gravel-sized particles	unitless	gravel
FINEGRAVELFraction	sample fraction consisting of fine gravel-sized particles	unitless	gravel
VFINEGRAVELFraction	sample fraction consisting of very fine gravel-sized particles	unitless	gravel
VCOARSESANDFraction	sample fraction consisting of very coarse sand-sized particles	unitless	sand
COARSESANDFraction	sample fraction consisting of coarse sand-sized particles	unitless	sand
MEDIUMSANDFraction	sample fraction consisting of medium sand-sized particles	unitless	sand
FINESANDFraction	sample fraction consisting of fine sand-sized particles	unitless	sand
VFINESANDFraction	sample fraction consisting of very fine sand-sized particles	unitless	sand
VCOARSESILTFraction	sample fraction consisting of very coarse silt-sized particles	unitless	silt
COARSESILTFraction	sample fraction consisting of coarse silt-sized particles	unitless	silt
MEDIUMSILTFraction	sample fraction consisting of medium silt-sized particles	unitless	silt
FINESILTFraction	sample fraction consisting of fine silt-sized particles	unitless	silt
VFINESILTFraction	sample fraction consisting of very fine silt-sized particles	unitless	silt
CLAYFraction	sample fraction consisting of clay-sized particles	unitless	clay
grainsize_3500	Mastersizer grain size class: 3500 um	um	sed_grain_size
grainsize_3080	Mastersizer grain size class: 3080 um	um	sed_grain_size
grainsize_2710	Mastersizer grain size class: 2710 um	um	sed_grain_size
grainsize_2390	Mastersizer grain size class: 2390 um	um	sed_grain_size
grainsize_2100	Mastersizer grain size class: 2100 um	um	sed_grain_size
grainsize_1850	Mastersizer grain size class: 1850 um	um	sed_grain_size
grainsize_1630	Mastersizer grain size class: 1630 um	um	sed_grain_size
grainsize_1430	Mastersizer grain size class: 1430 um	um	sed_grain_size
grainsize_1260	Mastersizer grain size class: 1260 um	um	sed_grain_size
grainsize_1110	Mastersizer grain size class: 1110 um	um	sed_grain_size
grainsize_976	Mastersizer grain size class: 976 um	um	sed_grain_size
grainsize_859	Mastersizer grain size class: 859 um	um	sed_grain_size
grainsize_756	Mastersizer grain size class: 756 um	um	sed_grain_size
grainsize_666	Mastersizer grain size class: 666 um	um	sed_grain_size
grainsize_586	Mastersizer grain size class: 586 um	um	sed_grain_size
grainsize_516	Mastersizer grain size class: 516 um	um	sed_grain_size
grainsize_454	Mastersizer grain size class: 454 um	um	sed_grain_size
grainsize_400	Mastersizer grain size class: 400 um	um	sed_grain_size
grainsize_352	Mastersizer grain size class: 352 um	um	sed_grain_size
grainsize_310	Mastersizer grain size class: 310 um	um	sed_grain_size
grainsize_272	Mastersizer grain size class: 272 um	um	sed_grain_size
grainsize_240	Mastersizer grain size class: 240 um	um	sed_grain_size
grainsize_211	Mastersizer grain size class: 211 um	um	sed_grain_size
grainsize_186	Mastersizer grain size class: 186 um	um	sed_grain_size
grainsize_163	Mastersizer grain size class: 163 um	um	sed_grain_size
grainsize_144	Mastersizer grain size class: 144 um	um	sed_grain_size
grainsize_127	Mastersizer grain size class: 127 um	um	sed_grain_size
grainsize_111	Mastersizer grain size class: 111 um	um	sed_grain_size
grainsize_98_1	Mastersizer grain size class: 98.1 um	um	sed_grain_size
grainsize_86_4	Mastersizer grain size class: 86.4 um	um	sed_grain_size
grainsize_76	Mastersizer grain size class: 76 um	um	sed_grain_size
grainsize_66_9	Mastersizer grain size class: 66.9 um	um	sed_grain_size
grainsize_58_9	Mastersizer grain size class: 58.9 um	um	sed_grain_size
grainsize_51_8	Mastersizer grain size class: 51.8 um	um	sed_grain_size
grainsize_45_6	Mastersizer grain size class: 45.6 um	um	sed_grain_size
grainsize_40_1	Mastersizer grain size class: 40.1 um	um	sed_grain_size
grainsize_35_3	Mastersizer grain size class: 35.3 um	um	sed_grain_size
grainsize_31_1	Mastersizer grain size class: 31.1 um	um	sed_grain_size
grainsize_27_4	Mastersizer grain size class: 27.4 um	um	sed_grain_size
grainsize_24_1	Mastersizer grain size class: 24.1 um	um	sed_grain_size
grainsize_21_2	Mastersizer grain size class: 21.2 um	um	sed_grain_size
grainsize_18_7	Mastersizer grain size class: 18.7 um	um	sed_grain_size
grainsize_16_4	Mastersizer grain size class: 16.4 um	um	sed_grain_size
grainsize_14_5	Mastersizer grain size class: 14.5 um	um	sed_grain_size
grainsize_12_7	Mastersizer grain size class: 12.7 um	um	sed_grain_size
grainsize_11_2	Mastersizer grain size class: 11.2 um	um	sed_grain_size
grainsize_9_86	Mastersizer grain size class: 9.86 um	um	sed_grain_size
grainsize_8_68	Mastersizer grain size class: 8.68 um	um	sed_grain_size
grainsize_7_64	Mastersizer grain size class: 7.64 um	um	sed_grain_size
grainsize_6_72	Mastersizer grain size class: 6.72 um	um	sed_grain_size
grainsize_5_92	Mastersizer grain size class: 5.92 um	um	sed_grain_size
grainsize_5_21	Mastersizer grain size class: 5.21 um	um	sed_grain_size
grainsize_4_58	Mastersizer grain size class: 4.58 um	um	sed_grain_size
grainsize_4_03	Mastersizer grain size class: 4.03 um	um	sed_grain_size
grainsize_3_55	Mastersizer grain size class: 3.55 um	um	sed_grain_size
grainsize_3_12	Mastersizer grain size class: 3.12 um	um	sed_grain_size
grainsize_2_75	Mastersizer grain size class: 2.75 um	um	sed_grain_size
grainsize_2_42	Mastersizer grain size class: 2.42 um	um	sed_grain_size
grainsize_2_13	Mastersizer grain size class: 2.13 um	um	sed_grain_size
grainsize_1_88	Mastersizer grain size class: 1.88 um	um	sed_grain_size
grainsize_1_65	Mastersizer grain size class: 1.65 um	um	sed_grain_size
grainsize_1_45	Mastersizer grain size class: 1.45 um	um	sed_grain_size
grainsize_1_28	Mastersizer grain size class: 1.28 um	um	sed_grain_size
grainsize_1_13	Mastersizer grain size class: 1.13 um	um	sed_grain_size
grainsize_0_991	Mastersizer grain size class: 0.991 um	um	sed_grain_size
grainsize_0_872	Mastersizer grain size class: 0.872 um	um	sed_grain_size
grainsize_0_767	Mastersizer grain size class: 0.767 um	um	sed_grain_size
grainsize_0_675	Mastersizer grain size class: 0.675 um	um	sed_grain_size
grainsize_0_594	Mastersizer grain size class: 0.594 um	um	sed_grain_size
grainsize_0_523	Mastersizer grain size class: 0.523 um	um	sed_grain_size
grainsize_0_46	Mastersizer grain size class: 0.46 um	um	sed_grain_size
grainsize_0_405	Mastersizer grain size class: 0.405 um	um	sed_grain_size
grainsize_0_357	Mastersizer grain size class: 0.357 um	um	sed_grain_size
grainsize_0_314	Mastersizer grain size class: 0.314 um	um	sed_grain_size
grainsize_0_276	Mastersizer grain size class: 0.276 um	um	sed_grain_size
grainsize_0_243	Mastersizer grain size class: 0.243 um	um	sed_grain_size
grainsize_0_214	Mastersizer grain size class: 0.214 um	um	sed_grain_size
grainsize_0_188	Mastersizer grain size class: 0.188 um	um	sed_grain_size
grainsize_0_166	Mastersizer grain size class: 0.166 um	um	sed_grain_size
grainsize_0_146	Mastersizer grain size class: 0.146 um	um	sed_grain_size
grainsize_0_128	Mastersizer grain size class: 0.128 um	um	sed_grain_size
grainsize_0_113	Mastersizer grain size class: 0.113 um	um	sed_grain_size
grainsize_0_0995	Mastersizer grain size class: 0.0995 um	um	sed_grain_size
grainsize_0_0876	Mastersizer grain size class: 0.0876 um	um	sed_grain_size
grainsize_0_0771	Mastersizer grain size class: 0.0771 um	um	sed_grain_size
grainsize_0_0679	Mastersizer grain size class: 0.0679 um	um	sed_grain_size
grainsize_0_0597	Mastersizer grain size class: 0.0597 um	um	sed_grain_size
grainsize_0_0526	Mastersizer grain size class: 0.0526 um	um	sed_grain_size
grainsize_0_0463	Mastersizer grain size class: 0.0463 um	um	sed_grain_size
grainsize_0_0407	Mastersizer grain size class: 0.0407 um	um	sed_grain_size
grainsize_0_0358	Mastersizer grain size class: 0.0358 um	um	sed_grain_size
grainsize_0_0315	Mastersizer grain size class: 0.0315 um	um	sed_grain_size
grainsize_0_0278	Mastersizer grain size class: 0.0278 um	um	sed_grain_size
grainsize_0_0244	Mastersizer grain size class: 0.0244 um	um	sed_grain_size
grainsize_0_0215	Mastersizer grain size class: 0.0215 um	um	sed_grain_size
grainsize_0_0189	Mastersizer grain size class: 0.0189 um	um	sed_grain_size
grainsize_0_0167	Mastersizer grain size class: 0.0167 um	um	sed_grain_size
grainsize_0_0147	Mastersizer grain size class: 0.0147 um	um	sed_grain_size
grainsize_0_0129	Mastersizer grain size class: 0.0129 um	um	sed_grain_size
grainsize_0_0114	Mastersizer grain size class: 0.0114 um	um	sed_grain_size
grainsize_0_01	Mastersizer grain size class: 0.01 um	um	sed_grain_size