Jessica R. Lacy
Madeline R. Foster-Martinez
Matthew Ferner
Anna Deck
2017
Seasonal vegetation characteristics in a Spartina foliosa- and Salicornia pacifica-dominated salt marsh at China Camp State Park
Comma-separated values spreadsheet (CSV)
data release
DOI:10.5066/F7HM56MX
Pacific Coastal and Marine Science Center, Santa Cruz, California
U.S. Geological Survey
https://doi.org/10.5066/F7HM56MX
https://www.sciencebase.gov/catalog/file/get/59ee5016e4b0220bbd976242
Jessie R. Lacy
Rachel M. Allen
Madeline R. Foster-Martinez
Joanne C. T. Ferreira
Andrea O'Neill
2017
Hydrodynamic and sediment transport data from San Pablo Bay and China Camp marsh (northern San Francisco Bay), 2013-2016
data release
DOI:10.5066/F7HM56MX
Pacific Coastal and Marine Science Center, Santa Cruz, CA
U.S. Geological Survey
https://doi.org/10.5066/F7HM56MX
As part of the San Francisco Bay Marsh Sediment Experiments and hydrodynamic investigations in San Pablo Bay and China Camp Marsh, California, vegetation sampling measurements were taken over several periods at numerous locations. This portion of the data release presents physical characteristics and percent cover data from vegetation plots sampled in China Camp State Park salt marsh (northern San Francisco Bay) in 2015, 2016, and 2017. One-meter quadrats (1m x 1m) were analyzed for percent cover of each vegetation species present, average canopy height, and maximum canopy height. The percent cover was done by visual inspection. A quarter-meter quadrat (0.25m x 0.25m) was then used for stem count and stem diameter measurements. Stem counts were only done for S. foliosa. These quadrats ran along the instruments used to collect sediment and hydrodynamic data, which is described elsewhere in this data release. This survey was conducted on January 23, 2015 (winter conditions) and again on June 6, 2016 (summer conditions). A separate survey was conducted on September 29, 2016 and May 3, 2017, to measure the length, width, and spacing of S. foliosa leaves. Data collected are provided as a comma-delimited spreadsheet (.csv).
Data from these experiments will be used to investigate the spatial and temporal variation in suspended sediment transport at the marsh boundary in order to better inform predictions of marsh resilience, and offer more complete characterizations of sediment transport and conditions within this unique environment. Data can be used to parameterize vegetative drag and understand the effect of the vegetation on wave attenuation.
Additional information about the field activities from which these data were derived is available online at:
http://cmgds.marine.usgs.gov/fan_info.php?fan=2014-678-FA
http://cmgds.marine.usgs.gov/fan_info.php?fan=2016-632-FA
20150123
20160606
20160929
20170531
dates observed
None planned
-122.4930
-122.3697
38.0451
38.0060
USGS Metadata Identifier
USGS:59ee5016e4b0220bbd976242
ISO 19115 Topic Category
Environment
Coastal and Marine Ecological Classification Standard (CMECS)
Emergent Tidal Marsh
Low and Intermediate Salt Marsh
USGS Thesaurus
Vegetation
Wetland Ecosystems
Marine Realms Information Bank (MRIB) keywords
Marsh
None
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Pacific Coastal and Marine Science Center
PCMSC
Geographic Names Information System (GNIS)
San Pablo Bay
San Francisco Bay
Marin County
China Camp
None
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data.
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060
831-427-4747
pcmsc_data@usgs.gov
https://www.sciencebase.gov/catalog/file/get/59ee5016e4b0220bbd976242?name=VegetationCharacteristicsSamplingArea.png&allowOpen=true
image showing area of vegetation sampling
PNG
The percent cover was visually estimated to the nearest 5% by two researchers independently in the field (nearest 1% is used if total is <5% or >95%). Absolute cover for each species was estimated, which allows the total cover to be greater than 100%. An average of the researchers' estimates was used if the difference was less than 10%. When differences were greater than 10%, the plot was discussed until a concensus was reached. Canopy heihgt was estimated by placing a meter stick vertically in the center of the quadrat. Maximum height was directly measured with a meter stick. Metrics pertaining to individual stems were measured with calipers.
No formal logical accuracy tests were conducted. Data fall within expected ranges.
Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
Horizontal accuracy derived from GPS instrumentation is less than 1 m (less than 5 m for surveys of individual stems). The position and elevation of each quadrat was measured using RTK-GPS; the GPS base station was located on an established benchmark 0.5 km away.
Vertical accuracy derived from GPS instrumentation is less than 0.05 m. The position and elevation of each quadrat was measured using RTK-GPS; the GPS base station was located on an established benchmark 0.5 km away.
Percent cover and canopy height were estimated in plots of vegetation in China Camp State Park salt marsh (Northern San Francisco Bay). Measurements were taken of maximum canopy height, stem density, and stem widths. Surveys were conducted in 2015 and 2016.
20160606
Anna Deck
San Francisco Bay NERR
Monitoring Technician
Mailing and Physical
3152 Paradise Drive
Tiburon
CA
94920
415-338-3702
akdeck@sfsu.edu
Measurements were taken of vegetation height, stem widths, leaf widths, leaf lengths, and leaf spacing. Surveys were conducted in 2016 and 2017 at China Camp State Park salt marsh (Northern San Francisco Bay).
20170531
Madeline Foster-Martinez
UC Berkeley
Graduate Researcher
Mailing and Physical
202 O'Brien Hall
Berkeley
CA
94720
504-782-2172
madeline@berkeley.edu
Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.
20201019
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Performed minor edits to the metadata to correct typos. No data were changed
20211013
U.S. Geological Survey
Susan A. Cochran
Geologist
Mailing and Physical
2885 Mission Street
Santa Cruz
CA
95060
831-460-7545
scochran@usgs.gov
Point
Point
57
State Plane Coordinate System 1927
CCS27 zone 3
37.0666
-120.5000
37.0666
2000000
500000
row and column
1.000000
1.000000
meters
North American Datum of 1927
Clarke 1866
6378206.400000
294.978698214
NAVD88
0.001
meters
Implicit coordinate
ChinaCamp_Marsh_Vegetation
Table containing attribute information associated with the dataset
Producer defined
ID
Vegetation sample ID
Producer defined
Alphanumeric codes to uniquely identify vegetation quadrats or individual plants
Date Collected
Date in month/day/year format of sample collection.
Producer defined
01/23/2015
05/31/2017
Sample Type
Describes the type of sample
Producer defined
Sample types are defined as either Quadrat, Spartina foliosa, or Salicornia pacifica. Quadrats are 1m x 1m areas used for the measurements. Spartina foliosa and Salicornia pacifica refer to individual plants or a collection of those plants (not defined by a quadrat).
Northing (CA SPC 03, meters)
Meters east in the State Plane Coordinate system
Producer defined
669300.585
669415.331
m
0.001
Easting (CA SPC 03, meters)
Meters east in the State Plane Coordinate system
Producer defined
1825440.867
1825848.371
m
0.001
Elevation (NAVD88, meters)
Elevation in meters relative to NAVD88
Producer defined
0.782
2.0
m
0.001
Spartina foliosa
Percent cover in a quadrat (1mx1m) of Spartina foliosa; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Salicornia pacifica
Percent cover in a quadrat (1mx1m) of Salicornia pacifica; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Jaumea carnosa
Percent cover in a quadrat (1mx1m) of Jaumea carnosa; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Grindelia stricta
Percent cover in a quadrat (1mx1m) of Grindelia stricta; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Distichlis spicata
Percent cover in a quadrat (1mx1m) of Distichlis spicata; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Frankenia salina
Percent cover in a quadrat (1mx1m) of Frankenia salina; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Cuscuta
Percent cover in a quadrat (1mx1m) of Cuscuta; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Limonium
Percent cover in a quadrat (1mx1m) of Limonium; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Bare
Percent cover in a quadrat (1mx1m) of Bare ground; NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Wrack
Percent cover in a quadrat (1mx1m) of Wrack (not a vegetation type); NA = Not applicable (not measured)
Producer defined
0
100
percent
5
Stem Density (No/0.0625 square_meter)
Number of Spartina foliosa stems in a quadrat (0.25m x 0.25m); NA = Not applicable (not measured)
Producer defined
13
31
count
1
Notes
Notes on the measurement; NA = No notes
Producer defined
Notes that were made at the time of measurement.
Average height (cm)
Average canopy height in a quadrat (1mx1m); NA = Not applicable (not measured)
Producer defined
15
80
cm
5
Max Height (cm)
Maximum height of vegetation in a quadrat (1mx1m); NA = Not applicable (not measured)
Producer defined
25
95
cm
1
Height (cm)
Height of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
17
94
cm
1
Stem width, 1 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 2 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 3 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 4 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 5 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 6 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 7 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 8 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 9 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Stem width, 10 (mm)
Width of an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
1
8
mm
0.01
Height of first leaf from ground (cm)
Distance between the ground and the first leaf (closest to the ground) on a vegetation stem; NA = Not applicable (not measured)
Producer defined
5
40
cm
0.5
Height of second leaf from ground (cm)
Distance between the ground and the second leaf on a vegetation stem; NA = Not applicable (not measured)
Producer defined
6.5
15
cm
0.5
Height of third leaf from ground (cm)
Distance between the ground and the third leaf on a vegetation stem; NA = Not applicable (not measured)
Producer defined
15.5
17
cm
0.5
Total number of leaves (one stem)
Total number of leaves on an individual vegetation stem; NA = Not applicable (not measured)
Producer defined
2
8
count
1
SPFO leaf width (mm), 1
Width at the base (where the leaf comes out of the stem) of a Spartina foliosa leaf; NA = Not applicable (not measured)
Producer defined
3.74
10.92
mm
0.01
SPFO leaf width (mm), 2
Width at the base (where the leaf comes out of the stem) of a Spartina foliosa leaf; NA = Not applicable (not measured)
Producer defined
3.74
10.92
mm
0.01
SPFO leaf width (mm), 3
Width at the base (where the leaf comes out of the stem) of a Spartina foliosa leaf; NA = Not applicable (not measured)
Producer defined
3.74
10.92
mm
0.01
SPFO leaf width (mm), 4
Width at the base (where the leaf comes out of the stem) of a Spartina foliosa leaf; NA = Not applicable (not measured)
Producer defined
3.74
10.92
mm
0.01
SPFO leaf width (mm), 5
Width at the base (where the leaf comes out of the stem) of a Spartina foliosa leaf; NA = Not applicable (not measured)
Producer defined
3.74
10.92
mm
0.01
SPFO leaf width (mm), 6
Width at the base (where the leaf comes out of the stem) of a Spartina foliosa leaf; NA = Not applicable (not measured)
Producer defined
3.74
10.92
mm
0.01
leaf length (cm), 1
Length of a Spartina foliosa leaf from stem to end; NA = Not applicable (not measured)
Producer defined
4.5
29
cm
0.5
leaf length (cm), 2
Length of a Spartina foliosa leaf from stem to end; NA = Not applicable (not measured)
Producer defined
4.5
29
cm
0.5
leaf length (cm), 3
Length of a Spartina foliosa leaf from stem to end; NA = Not applicable (not measured)
Producer defined
4.5
29
cm
0.5
The first line of the csv file is a header line.
U.S. Geological Survey
U.S. Geological Survey - ScienceBase
mailing and physical
Denver Federal Center, Building 810, Mail Stop 302
Denver
CO
80225
1-888-275-8747
sciencebase@usgs.gov
Downloadable seasonal vegetation charateristic data in csv (comma-delimited spreadsheet) file format.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
Comma-separated values
Microsoft Excel version 14.0.7188.5002
CSV
Comma-separated values text file
0.01
https://www.sciencebase.gov/catalog/file/get/59ee5016e4b0220bbd976242?naem=ChinaCamp_Marsh_Vegetation.csv
Data can be downloaded via the Internet
None
png
ArcGIS 10.4
PNG shows sampling area
PNG shows sampling area
2.2
https://www.sciencebase.gov/catalog/file/get/59ee5016e4b0220bbd976242?name=VegetationCharacteristicsSamplingArea.png
Data may be accessed and downloaded via the Internet
None
20211013
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060
831-427-4747
pcmsc_data@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998