Lisa L. Robbins
Carl A. Taylor
Kendra L. Daly
Paul O. Knorr
20120101
Surface water data for samples collected approximately hourly along the West Florida Shelf: USGS Cruise 11BHM02
tabular and vector digital data
Data Series
712
St. Petersburg, FL
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
http://pubs.usgs.gov/ds/0712/data/2011_June/11BHM02_Surface_Samples.zip
The United States Geological Survey (USGS) is conducting a study on the effects of climate change on ocean acidification within the Gulf of Mexico; dealing specifically with the effect of ocean acidification on marine organisms and habitats. To investigate this, the USGS participated in cruises in the West Florida Shelf and northern Gulf of Mexico regions aboard the R/V Weatherbird II, a ship of opportunity lead by Dr. Kendra Daly, of the University of South Florida (USF). This cruise occurred June 25-30, 2011, leaving from and returned to Saint Petersburg, Florida. The USGS collected data pertaining to pH, dissolved inorganic carbon (DIC), and total alkalinity in discrete samples. Forty-eight underway discrete samples were collected approximately hourly over a span of 1130 kilometer (km) track line. Flow-through conductivity-temperature-depth (CTD) data were collected, which includes temperature, salinity, and pH. Corroborating the USGS data are the vertical CTD profiles collected by USF, using the following sensors: CTD, oxygen, chlorophyll fluorescence, optical backscatter, and transmissometer. Additionally, discrete depth samples for nutrients, chlorophyll, and particulate organic carbon/nitrogen were collected.
The purpose is to study the effects of climate change on ocean acidification within the Gulf of Mexico.
The USGS Saint Petersburg Coastal and Marine Science Center (SPCMSC) - St. Petersburg, FL, assigns a unique identifier to each cruise or field activity. For example, 11BHM02 tells us the data were collected in 2011 for Benthic Habitat Mapping and the data were collected during the second field activity for that project in that calendar year. Refer to http://walrus.wr.usgs.gov/infobank/programs/html/definition/activity.html for a detailed description of the method used to assign the cruise ID.
20120625
20120630
data collection
None planned
-85.8753
-83.03413
29.20133
27.06688
USGS Metadata Identifier
USGS:eb7aacea-a2e0-4aaf-8ca1-99ff6e1d4160
None
pCO2
Temperature
carbon flux
pH
Ocean Acidification
total carbon
Ocean Chemistry
Salinity
Data Categories for Marine Planning
assessments
physical/chemical features
Marine Realms Information Bank (MRIB) Keywords
chemical analysis
chemical oceanography
environmental chemistry
ocean acidification
USGS Thesaurus
chemical analysis
marine chemistry
ocean acidification
None
United States
West Florida Shelf
Florida
None
ocean surface
Epipelagic
Mesopelagic
Bathypelagic
None
2011 February
None
USGS and USF requests to be acknowledged as originator of the data in future products or derivative research.
USGS St. Petersburg Coastal and Marine Science Center
Lisa Robbins
Research Oceanographer
mailing and physical
600 4th Street South
St. Petersburg
Florida
33701
US
727-502-8005
727-502-8181
lrobbins@usgs.gov
8am to 5pm M-F EST
Microsoft Windows 7 Version 6.1 (Build 7600) ; ESRI ArcGIS 10.0.4.4000
These data were collected in the field and have not been checked for internal consistencies.
These data are collected along tracklines (2-D) and therefore are inherently incomplete. There are no data collected between tracklines.
Surface samples were taken approximatly hourly from a flowthrough system during ship transit (not at stations). Samples then analyzed for total alkalinity and disolved inorganic carbon at the USGS St. Petersburg Carbon Analytical Laboratory.
20110601
Data entered into a spreadsheet and merged with other data sources: GPS from the ship, as well as the lab results of total alkalinity and disolved inorganic carbon from the USGS St. Petersburg Carbon Analytical Laboratory.
20120626
2011_June_Discrete_Samples_Surface.csv
2011_June_Discrete_Samples_Surface.xls
The spreadsheet was imported into ArcGIS 10 and converted into a shapefile.
2011_June_Discrete_Samples_Surface.xls
20120814
2011_June_Discrete_Surface_Samples.shp
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
20170313
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Added keywords section with USGS persistent identifier as theme keyword.
20201013
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
Vector
Entity point
16
8.9831528411952133e-009
8.9831528411952133e-009
Decimal Degrees
D WGS 1984
WGS 1984
6378137.0
298.257223563
2011_June_Discrete_Surface_Samples
Chemical and physical measurements of surface water
USGS
FID*
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape*
Feature geometry.
ESRI
Coordinates defining the features.
Cruise_ID
Cruise name according to the USGS Field Activity Collection
USGS
11BHM02
Sample
Sample indentification number
user
13
51
20110626
20110630
Depth_m
depth that sample was collected at (meters)
user
0
0
20110626
20110630
Date_UTC
Date in UTC time zone; MM/DD/YYYY
USGS
Date of sample collection in MM/DD/YYYY format
20110625
20110630
Time_UTC
Time of data collection in HH:MM UTC, 24 hour format
USGS
Time of data collection in HH:MM UTC
Date_EDT
Date in EDT time zone; MM/DD/YYYY
USGS
Date of sample collection in MM/DD/YYYY format
20110625
20110630
Time_EDT
Time of data collection in HH:MM EDT, 24 hour format
USGS
Time of data collection in HH:MM EDT
Latitude
Latitude in decimal degrees
USGS
27.09138
29.33738
decimal degrees
Longitude
Longitude in decimal degrees
USGS
-86.0238
-82.70102
decimal degrees
Sal_ppt
Water salinity
USGS
33.55
36.47
Parts per thousand (PPT)
pH_Calc
a measure of acidity and alkalinity of a solution
USGS
0
0
0
not recorded
Temp_C
water temperature
USGS
28.02
29.68
degrees Celsius
TCO2
Total Carbon Dioxide
USGS
1993.079409
2193.838754
micromol per kilogram
TA
Total Alkalinity
acronym
2285.954668
2538.551327
micromol per kilogram sw
Notes
description, concerns, viability of samples or environment
user
text
Flag
Viability of sample
USGS
2
Good
USGS
3
Questionable
USGS
4
Bad (Avoid Using)
USGS
6
Interpolated/average of replicates
USGS
-999
Interpolated/Last good value
USGS
All attributes are common between the three data formats provided (.csv, .xls, .shp), except for the attributes FID and SHAPE (indicated by *), which are found only within the shapefile (.shp) because they are unique to that data type. Additionally, the GPS data was taken from the Weatherbird II's navigation logs and was matched with the time logs on the sonde. These data have not been QA/QC yet, and as such could have data errors due to tubes clogging, or flowthrough shutdown for inclement weather.
Robbins, L.L., Knorr, P.O., Taylor, C.A., Daly, K.L., 2012, USGS Field Activities 11BHM01 and 11BHM02 on the West Florida Shelf, Gulf of Mexico, in May and June 2011: U.S. Geological Survey Data Series 712, available online at http://pubs.usgs.gov/ds/0712/.
USGS St. Petersburg Coastal and Marine Science Center
Lisa Robbins
mailing and physical address
600 4th Street South
St. Petersburg
Florida
33701
US
727-502-8005
This digital publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data published in this report have been used by the USGS, no warranty, expressed or implied, is made by the U.S. Geological Survey as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials. Graphical map depictions are intended to be used within the map scale limits applicable to the source data. Although software enables the user to view data at various scales, the user is cautioned to refer to the source documentation for the appropriate map scale limitations.
Microsoft Excel (.xls); Comma-delimited text file (.csv); ArcGIS (.SHP)
ZIP File Format
http://pubs.usgs.gov/ds/0712/data/2011_June/11BHM02_Surface_Samples.zip
Free
20201013
USGS St. Petersburg Coastal and Marine Science Center
Kira Barrera
Research Assistant
mailing and physical address
600 4th Street South
St. Petersburg
Florida
33701
US
727-502-8044
727-502-8181
carltaylor@usgs.gov
8am to 5pm M-F EST
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time