MIRAI MR09-03 Leg2 Chlorophyll

Last Modified: 2013-08-29
: MR09-03 Leg2
: Processed (DMO)-QCed
: JAMSTEC
: Size flactionated chlorophyll concentration
:
OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
BIOSPHERE > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON
BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS

For Using Data

PI (Principal Investigator) : Shigeto Nishino (JAMSTEC)
See Terms and Conditions about constrain of use.
See Terms and Conditions about data citation.
Instrument:
Fluorometer (TURNER DESIGNS)
Chlorophyll data during MR09-03 Leg2 cruise were obtained by the following methods. See Data List for available data at each station. Water sampling, filtration, and devices and standard materials for analysis for this method are outlined below. For further information, please see Cruise Report.
1) Vertical sampling : Niskin
2) Surface sampling : Bucket
3) Sampling layer : 12
4) Size fractionated : None(Total chl.) and 3
5) Filter and filtration : Whatman GF/F 25mm (for Total chl.),nuclepore filter 47mm (pore size;10.0µm,5.0µm,2.0µm)
 and Whatman GF/F25mm (for Size fractionated)
6) Extract reagent : N,N-dimethylformamide
7) Extract time : more than 24 hours at -20degC
8) Preservation period of frozen filter paper : a few days
9) Analysis place : MIRAI
10) Analysis device : Fluorometer
11) Analysis method : Non-acidification method (Welschmeyer, 1994)
12) Lamp : Non-acidification method (Blue Mercury Vapor)
Fluorometer (Tuner Design fluorometer (10-AU-005)) measures fluorescence of chlorophyll in a sample material extracted in organic solvent from phytoplankton, which consists of lamp, filter, fluorescence detector and keypad. Since each fluorescent material emits the specific wavelength of fluorescent activated by absorbing intrinsic wavelength of light, fluorescence of the sample material can be gained if only the spectrum of the fluorescent intensity are measured by using optical filter. Intensity of emission light is almost in proportion to density of chlorophyll when intensity of excitation light is constant. However, since absolute value of chlorophyll density cannot be read from fluorescence value, it is necessary to calibrate it by using reference material.
Manufacturer : Turner Designs, Inc.
Instruments type : 10-AU-005
Sensitivity : >0.03µL
Sample Range : 0.03 to 700µg/L
Optical system : dual beam
Fully compatible with Windows 95.
Chlorophyll a : Sigma chemical Co.
: MR09-03 Leg2
: Processed (DMO)-QCed
: JAMSTEC
: Size flactionated chlorophyll concentration
:
OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
BIOSPHERE > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON
BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS

Observation Map

Imagery reproduced from ...

Data List

  File names
MR09-03_leg2_Chl.csv
: MR09-03 Leg2
: Processed (DMO)-QCed
: JAMSTEC

Chlorophyll Data Sheet Format

Format information describes column no., column heading mnemonic and comments of chlorophyll data sheet in MR09-03 Leg2.
Missing value is presented by -9.
Column No.Column Heading MnemonicComments
1CruiseIDCruiseID
2STNNBRStation number (refer to CTD cast table of cruise report)
3CASTNOCast number (refer to CTD cast table of cruise report)
4UTC DateCTD start UTC date (refer to CTD cast table of cruise report)
5UTC TimeCTD start UTC time (refer to CTD cast table of cruise report)
6LatitudeCTD start position Latitude north degree (refer to CTD cast table of cruise report)
7LongitudeCTD start position Longitude east degree (refer to CTD cast table of cruise report)
8BTLNBRBottle identification number
9BTLNBR_FLAG_WBottle quality flag (for explanation see CTD Quality flags)
10CTD DepthCTD Depth (m)
11CTD PRSCTD Pressure (dbar)
12CTDPRS_FLAG_WCTD Pressure flag (for explanation see CTD Quality flags)
13CTD FLUFluorometer
14FLUOR_FLAG_WFluorometer quality flag (for explanation see CTD Quality flags)
15CHLWELTotal Chlorophyll quantity (Non-acidification method) (µg/L)
16CHLWEL_FLAG_WTotal Chlorophyll quantity (Non-acidification method)flag (for explanation see Quality flags)
171CHLWELTotal Chlorophyll quantity (Non-acidification method) (µg/L)
181CHLWEL_FLAG_WTotal Chlorophyll quantity (Non-acidification method)flag (for explanation see Quality flags)
19SIZECHL10µm< Chlorophyllquantity (µg/L)
20SIZECHL_FLAG_W10µm< Chlorophyllquantity flag (for explanation see Quality flags)
211SIZECHL5 to 10µm Chlorophyllquantity (µg/L)
221SIZECHL_FLAG_W5 to 10µm Chlorophyllquantity flag (for explanation see Quality flags)
232SIZECHL2 to 5µm Chlorophyllquantity (µg/L)
242SIZECHL_FLAG_W2 to 5µm Chlorophyllquantity flag (for explanation see Quality flags)
253SIZECHL2µm> Chlorophyllquantity (µg/L)
263SIZECHL_FLAG_W2µm> Chlorophyllquantity flag (for explanation see Quality flags)
27RemarksSampling cibdition etc.

about 19 to 26)
Size-fractionated samples were applied only Non-acidification method.
: MR09-03 Leg2
: Processed (DMO)-QCed
: JAMSTEC
Flags of data quality control are as follows.

Related Information

Update History

2013-08-29
An observation data was registerd.
2012-09-28
An observation data was registerd.