Lisa L. Robbins
Paul O. Knorr
Kira E. Barrera
Kendra L. Daly
2013
Surface water data for samples collected approximately hourly along the West Florida Shelf: USGS Cruise 11BHM03
tabular and vector digital data
Data Series
822
St. Petersburg, FL
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
http://pubs.usgs.gov/ds/0822/data/2011_September/11BHM03_Samples_Surface.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 two 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). The cruises occurred September 20 - 28 and November 2 - 4, 2011. Both left from and returned to Saint Petersburg, Florida, but followed different routes (see Trackline). On both cruises the USGS collected data pertaining to pH, dissolved inorganic carbon (DIC), and total alkalinity in discrete samples. Discrete surface samples were taken during transit approximatly hourly on both cruises, 95 in September were collected over a span of 2127 km, and 7 over a trackline of 732 km line on the November cruise. Along with the surface samples, another set of samples were taken at various depths at stations; 27 in September at four stations and 15 in November at five stations. In addition to the discrete samples flow-through data was also collected on both cruises in a variety of forms. Surface CTD data was collected every five minutes which includes temperature, salinity, and pH. In addition, two more flow-through instruments were setup on both cruises that recorded pH and CO2 every 15 minutes. Corroborating the USGS data is 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.
Discrete water samples were collected underway to corroborate the continuous pCO2 measurements. Water samples were analyzed for salinity, pH, and total alkalinity at the USGS geochemistry laboratory in St. Petersburg, Florida. This continuous flow through data is used to corroborate the discrete sample data using CO2SYS.
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, 11BHM03 tells us the data were collected in 2011 for Benthic Habitat Mapping and the data were collected during the third 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.
20110920
20110928
data collection
None planned
-88.419667
-82.769017
30.274133
27.605300
USGS Metadata Identifier
USGS:3e2df309-4c0b-455e-9fc5-52df6290f627
None
pH
total carbon
Salinity
carbon flux
Ocean Acidification
pCO2
Temperature
Ocean Chemistry
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
West Florida Shelf
Florida
United States
None
Mesopelagic
Epipelagic
ocean surface
Bathypelagic
None
2011 September
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.
20110920
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.
20120816
2011_September_Discrete_Samples_Surface.csv
2011_September_Discrete_Samples_Surface.xls
The spreadsheet was imported into ArcGIS 10 and converted into a shapefile.
2011_September_Discrete_Samples_Surface.xls
20120816
2011_September_Discrete_Samples_Surface.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
95
8.9831528411952133e-009
8.9831528411952133e-009
Decimal Degrees
D WGS 1984
WGS 1984
6378137.0
298.257223563
2011_September_Discrete_Samples_Surface
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
11BHM03
Sample
Sample indentification number
USGS
1
34
Depth_m
depth that sample was collected at (meters)
USGS
0
0
Date_UTC
Date in UTC time zone; MM/DD/YYYY
USGS
Date of sample collection in MM/DD/YYYY format
20110920
20110928
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
20110920
20110928
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
27.6053
30.274133
decimal degrees
Longitude
Longitude in decimal degrees
USGS
-88.41966667
-82.76910667
decimal degrees
Sal_ppt
Water salinity
USGS
31.63
36.36
Parts per thousand (PPT)
Temp_C
water temperature
USGS
23.94
29.95
degrees Celsius
TCO2
Total Carbon Dioxide
USGS
1987.806522
2125.359435
micromol per kilogram
TA
Total Alkalinity
acronym
2287.14136
3228.053427
micromol per kilogram sw
Notes
description, concerns, viability of samples or environment
USGS
text
Flag
Viability of sample
USGS
2
Good
USGS
3
Questionable
USGS
4
Bad (Avoid Using)
USGS
6
Interpolated/average of replicates
USGS
-999
Data not collected
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., Barrera, K.E., Daly, K.L., 2012, USGS Field Activities 11BHM03 and 11BHM04 on the West Florida Shelf, Gulf of Mexico, in September and November 2011: U.S. Geological Survey Data Series 822, available online at http://pubs.usgs.gov/ds/0822/.
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/0822/data/2011_September/11BHM03_Samples_Surface.zip
Free
20201013
USGS St. Petersburg Coastal and Marine Science Center
Kira E. Barrera
Research Assistant
mailing and physical address
600 4th Street South
St. Petersburg
Florida
33701
US
727-502-8044
727-502-8181
kbarrera@usgs.gov
8am to 5pm M-F EST
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time