MIRAI MR10-05 Leg2 Chlorophyll

Last Modified: 2013-08-29
: MR10-05 Leg2
: Processed (PI)
: JAMSTEC
: Size flactionated chlorophyll concentration
:
OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
BIOSPHERE > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON
BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS

For Using Data

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 MR10-05 Leg2 cruise were obtained by the following methods.
Water sampling, filtration, devices and standard materials for analysis are outlined below.
For further information, please see Cruise Report.
1) Vertical sampling : Niskin
2) Surface sampling : Bucket
3) Sampling layer : 7-11
4) Size fractionated : None(Total chl.) and 4
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 : 24 hours and more 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 : Blue F4T5, B2/BP
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.
: MR10-05 Leg2
: Processed (PI)
: 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
MR10-05_leg2_Chl.csv
: MR10-05 Leg2
: Processed (PI)
: JAMSTEC

Chlorophyll Data Sheet Format

Format information describes column no., column heading mnemonic and comments of chlorophyll data sheet in MR10-05 Leg2.
Missing value is presented by -9.

Column No.Column Heading MnemonicComments
1 CruiseID CruiseID
2 STNNBR Station number (refer to CTD cast table of cruise report)
3 CASTNO Cast number (refer to CTD cast table of cruise report)
4 UTC Date CTD start UTC date (refer to CTD cast table of cruise report)
5 UTC Time CTD start UTC time (refer to CTD cast table of cruise report)
6 Latitude CTD start position Latitude north degree (refer to CTD cast table of cruise re
7 Longitude CTD start position Longitude east degree (refer to CTD cast table of cruise re
8 BTLNBR Bottle identification number
9 BTLNBR_FLAG_W Bottle quality flag (for explanation see CTD Quality flags)
10 CTD Depth CTD Depth (m)
11 CTD PRS CTD Pressure (dbar)
12 CTDPRS_FLAG_W CTD Pressure flag (for explanation see CTD Quality flags)
13 CHLWEL Total Chlorophyll quantity (Non-acidification method) (mg/m3)
14 CHLWEL_FLAG_W Total Chlorophyll quantity (Non-acidification method)flag (for explanation see
15 1CHLWEL Total Chlorophyll quantity (Non-acidification method) (mg/m3)
16 1CHLWEL_FLAG_W Total Chlorophyll quantity (Non-acidification method)flag (for explanation see Qua
17 SIZECHL 10µm< Chlorophyllquantity (mg/m3)
18 SIZECHL_FLAG_W 10µm< Chlorophyllquantity flag (for explanation see Quality flags)
19 1SIZECHL 5 to 10µm Chlorophyllquantity (mg/m3)
20 1SIZECHL_FLAG_W 5 to 10µm Chlorophyllquantity flag (for explanation see Quality flags)
21 2SIZECHL 2 to 5µm Chlorophyllquantity (mg/m3)
22 2SIZECHL_FLAG_W 2 to 5µm Chlorophyllquantity flag (for explanation see Quality flags)
23 3SIZECHL 0.7 to 2µm Chlorophyllquantity (mg/m3)
24 3SIZECHL_FLAG_W 0.7 to 2µm Chlorophyllquantity flag (for explanation see Quality flags)

about 17 to 24)
Size-fractionated samples were applied only Non-acidification method.
: MR10-05 Leg2
: Processed (PI)
: JAMSTEC
Flags of data quality control are as follows.

Related Information

Update History

2013-08-29
An observation data was registerd.
2013-03-22
An observation data was registerd.