TIDE Project Database

http://ecosystems.mbl.edu/tide

Acceptance and utilization of TIDE project data requires that:

· The Project Principal Investigator, Linda Deegan, be sent a notice stating reasons for acquiring any data and a description of the publication intentions.

· The Project PI and the Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications.

· A copy of any resultant publications should be sent to:

Linda Deegan
Ecosystems Center
Marine Biological Laboratory
Woods Hole, MA 02543

TIDE PROJECT DATABASE

DATA FILE: BP-WE-diurnal nut-2003.xls

BP-WE-diurnal nut-2003.txt

DOCUMENTATION FILE: BP-WE-diurnal nut-2003.doc

YEAR: 2003

PI: Bruce Peterson

OTHERS: Linda Deegan, Mike Johnson, Bonnie Keeler

BRIEF DESCRIPTION OF DATA FILE: Diurnal (24 hour) water collection using ISCO autosamplers at West Creek. Samples collected simultaneously at T1 of the R and L branch at West Creek. Samples at R-branch lost when autosampler tipped over. Samples filtered in lab and analyzed for salinity, chla and nutrients.

KEYWORDS: nitrate, phosphate, ammonium, salinity, TDN, TDP, chlorophyll, diurnal

RESEARCH LOCATION:

Creek	Branch	Transect	Habitat
WE	L	T1	Channel

EXPERIMENTAL DESIGN AND METHODS: Autosamplers deployed at T1 of the Right and Left branch of West Creek, however only samples recovered from L branch because R branch autosampler tipped. Water samples collected every hour for 24 hours to include a full tidal cycle. Samples transported back to the lab for salinity reading using refractometer and filtration for nutrient subsampling. Filter collected for dissolved chl a. Nutrient samples frozen until time of analysis. All analysis conducted at the MBL according to standard lab procedures (see methods). YSI probes and ADCP current profiler deployed at the same time (see corresponding YSI datafile).

NOTES AND COMMENTS:

VARIABLE DESCRIPTION:

Name	Description	Unit	Precision
Creek
Branch
Transect
Habitat
Date	Date samples collected	dd-mmm-yyyy
Time	Time samples collected	Hh:mm
Salinity	Salinity reading using refractometer	ppt
NO3	NO3- + NO2- (nitrate+nitrite) concentration	umol/L
NH4	NH4+ (ammonium) concentration	umol/L
PO4	PO4--- (soluble reactive phosphate) concentration	umol/L
Chla	dissolved chlorophyll a concentration	ug/L
TDN	total dissolved nitrogen	umol/L
TDP	total dissolved phosphorus	umol/L
Comments

CALCULATIONS:

FOR MORE INFORMATION, CONTACT:

Mike Johnson

7 MBL St.

Woods Hole, MA 02543

OTHER DATA FILES TO REFERENCE: CH-WE-YSI diurnal-2003

REFERENCE CITATIONS:

ARCHIVE INFORMATION:

Date of entry: 17 June 2004

Data entered by: Bonnie Keeler

Comments: