PRISM project

PRISM: Processes Regulating Iron Supply at the Mesoscale in the Ross Sea

VPR tow parameters:

track--lat/lon ship's track, Fluor-- fluorescence, Obs-- Optical backscattering, Par--photosyntetically active radiation, Rho--density

VPR file column headings:

1 vpr timestep
2 gmt in hhmmss.sss
                                                3 date in ddmmyy
                                                4 latitude in ddmm.mmmm. From ship GPS, negative values are Western hemisphere
                                                5 longitude in ddmm.mmmm. From ship GPS), negative values are Southern hemisphere
                                                6 bottom depth
                                                7 alt
8 roll           Roll angle, (degrees, positive: roll to right?)
                                                9 pitch          Pitch angle, (degrees, positive up)
                                                10 flow
                                                11 fluorescence   ug Chl-a/liter
                                                12 PAR            Downwelling light from PAR sensor, micro Einsteins/cm2/sec
                                                13 turbidity      Optical backscatter (Formazin turbidity units)
                                                14 salinity       Salinity (unitless~=PSU and o/oo) from VPR CTD
                                                15 temperature    Temperature of seawater in oC from VPR CTD
                                                16 vprdepth

Table 1. VPR tows from cruise NBP1201. Physical parameters and taxon groups (png plots).
Date/vpr tow	vpr track/taxon 1	Fluor/taxon 2	OBS/taxon 3	Par/taxon 4	Rho/taxon 5	Sal/taxon 6	Temp
24-Dec-2011 12242259.y11	track	Fluor	Obs	Par	Rho	Salinity	Temperature
24-Dec-2011 12242259.y11	--------	--------	no taxon data	--------	--------	--------

25-Dec-2011 12250104.y11	track	Fluor	Obs	Par	Rho	Salinity	Temperature
25-Dec-2011 12250104.y11	--------	--------	no taxon data	--------	--------	--------

01-Jan-2012 01011850.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
01-Jan-2012 01011850.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 1


02-Jan-2012 01020536.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
02-Jan-2012 01020536.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 2
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

03-Jan-2012 01030717.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
03-Jan-2012 01030717.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 2

10-Jan-2012 01101158.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
10-Jan-2012 01101158.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 3
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

14-Jan-2013 vpr4.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
14-Jan-2013 vpr4.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 4
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout
Taxa/TS plot (abs)^	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	TS plot
Taxa/TS plot (norm)^^	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	TS plot

16-Jan-2012 01160701.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
16-Jan-2012 01160701.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 5
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

16-Jan-2012 01162222.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
16-Jan-2012 01162222.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 6
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

18-Jan-2012 01180038.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
18-Jan-2012 01180038.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 7
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

19-Jan-2013 01191223.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
19-Jan-2013 01191223.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 8
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

25-Jan-2012 01250411.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
25-Jan-2012 01250411.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 9
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout
Taxa/TS plot (abs)^	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	TS plot
Taxa/TS plot (norm)^^	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	TS plot

26-Jan-2012 01262302.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
26-Jan-2012 01262302.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 10
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

01-Feb-2012 02010005.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
01-Feb-2012 02010005.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 11
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

03-Feb-2012 02030110.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
03-Feb-2012 02030110.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 12
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

03-Feb-2012 02031551.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
03-Feb-2012 02031551.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 13
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

05-Feb-2012 02050247.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
05-Feb-2012 02050247.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 14

05-Feb-2012 02050826.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
05-Feb-2012 02050826.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 14_15
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

Composite Jan 3 -- Feb 5 2012	track	Fluor	Obs	Par	Rho	Salinity	Temperature
Composite Jan 3 -- Feb 5 2012	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 3_15
log10 scale			'phaeIndiv(log)	'phaeMany' (log)
Emily's data	blurry_marSnow	phae2all	phaeIndiv	phaeMany	squashed	whiteout

                                                       Note: ^ absolute frequency of TS pairs
                                                                ^^ frequency normalized by total number of TS pairs

Table 2. VPR log from cruise NBP1201
Dates Tow ID Comments
Jan 1 VPR1 In transit; recovered early Jan 1-3 VPR2 In transit; diatom aggregates? Jan 10 VPR3 Eddy 2 radial section Jan 14-15 VPR4 Eddy 3 survey Jan 16 VPR5 Frontal region between high and low biomass areas; no O2 data Jan 16-17 VPR6 Survey of low biomass area Jan 18 VPR7 Re-survey of Eddy 3 core; includes intercalibration section with MVP Jan 19-20 VPR8 Survey to and around Ross Bank Jan 25 VPR9 Ross Ice Shelf eddy survey Jan 27-28 VPR10 Ross Bank to Joides Trough; Phaeocystis to the SE, small bead-like diatom chains to the NW Feb 1 VPR11 Survey of Ice Edge Eddy; lots of Phaeocystis with kidney beans in the middle. Feb 3 VPR12 Frontal region: diatoms on top of Phaeocystis to the west, 100m layer of all Phaeocystis to the east. Feb 4 VPR13 Survey of Ice Edge Eddy Feb 5-6 VPR14/15 Western Ross Sea to McMurdo Sound

Table 2. VPR log from cruise NBP1201

Dates Tow ID Comments

Jan 1           VPR1     In transit; recovered early
Jan 1-3        VPR2     In transit; diatom aggregates?
Jan 10         VPR3     Eddy 2 radial section
Jan 14-15    VPR4     Eddy 3 survey
Jan 16         VPR5     Frontal region between high and low biomass areas; no O2 data
Jan 16-17    VPR6     Survey of low biomass area
Jan 18          VPR7     Re-survey of Eddy 3 core; includes intercalibration section with MVP
Jan 19-20 VPR8     Survey to and around Ross Bank
Jan 25          VPR9     Ross Ice Shelf eddy survey
Jan 27-28 VPR10    Ross Bank to Joides Trough; Phaeocystis to the SE, small bead-like
                                   diatom chains to the NW
Feb 1           VPR11    Survey of Ice Edge Eddy; lots of Phaeocystis with kidney beans in the
                                    middle.
Feb 3           VPR12    Frontal region: diatoms on top of Phaeocystis to the west, 100m layer
                                    of all Phaeocystis to the east.
Feb 4          VPR13    Survey of Ice Edge Eddy
Feb 5-6       VPR14/15 Western Ross Sea to McMurdo Sound

Each VPR tow is presented above as a set of 3D plots. To get more freedom when analyzing these plots, a corresponding set of MATLAB's
figures is presented in a Table below. After downloading and opening Fig file in MATLAB, one can rotate this plot, zoom it in and out, change
size etc. for better viewing.

Table 3. VPR tows from cruise NBP1201. Physical parameters and taxon groups (matlab figs).
Date/vpr tow	vpr track/taxon 1	Fluor/taxon 2	OBS/taxon 3	Par/taxon 4	Rho/taxon 5	Sal/taxon 6	Temp
24-Dec-2011 12242259.y11	track	Fluor	Obs	Par	Rho	Salinity	Temperature
24-Dec-2011 12242259.y11	--------	--------	no taxon data	--------	--------	--------

25-Dec-2011 12250104.y11	track	Fluor	Obs	Par	Rho	Salinity	Temperature
25-Dec-2011 12250104.y11	--------	--------	no taxon data	--------	--------	--------

01-Jan-2012 01011850.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
01-Jan-2012 01011850.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR1

02-Jan-2012 01020536.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
02-Jan-2012 01020536.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR2

03-Jan-2012 01030717.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
03-Jan-2012 01030717.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR2

10-Jan-2012 01101158.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
10-Jan-2012 01101158.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR3

14-Jan-2013 vpr4.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
14-Jan-2013 vpr4.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR4
Taxa/TS plot (abs)^	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	TS plot
Taxa/TS plot (norm)^^	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	TS plot

16-Jan-2012 01160701.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
16-Jan-2012 01160701.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR5

16-Jan-2012 01162222.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
16-Jan-2012 01162222.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR6

18-Jan-2012 01180038.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
18-Jan-2012 01180038.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR7

19-Jan-2013 01191223.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
19-Jan-2013 01191223.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR8

25-Jan-2012 01250411.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
25-Jan-2012 01250411.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR9
Taxa/TS plot (abs)^	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	TS plot
Taxa/TS plot (norm)^^	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	TS plot

26-Jan-2012 01262302.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
26-Jan-2012 01262302.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR10

01-Feb-2012 02010005.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
01-Feb-2012 02010005.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR11

03-Feb-2012 02030110.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
03-Feb-2012 02030110.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR12

03-Feb-2012 02031551.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
03-Feb-2012 02031551.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR13

05-Feb-2012 02050247.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
05-Feb-2012 02050247.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR14

05-Feb-2012 02050826.y12	track	Fluor	Obs	Par	Rho	Salinity	Temperature
05-Feb-2012 02050826.y12	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR14_15
Composite Jan 3 -- Feb 5 2012	track	Fluor	Obs	Par	Rho	Salinity	Temperature
Composite Jan 3 -- Feb 5 2012	'blurry'	'marSnow'	'phaeIndiv'	'phaeMany'	'squashed'	'whiteout'	VPR 3_15
log10 scale			'phaeIndiv_log'	'phaeMany_log'

Note: ^ absolute frequency of TS pairs
^^ frequency normalized by total number of TS pairs

Satellite data (Chl-a and SST)

                                              Satellite color imagery from MODIS-A was used to create maps of Chl-a and SST distributions in the Ross Sea area [160 E -- 155 W, -78.5 S -- -76.5 S].
                                              We began with browsing Level 1 and 2 archive data http://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sen=am by manually choosing and downloading
                                              scenes where at least 30% of the total area was cloud free. Then downloaded L1A files were processed to Level 2 with spatial resolution 500 m using
                                              SEADAS version 6.4 . After that all available scenes were mapped and labeled to get Chl-a and SST distributions, currently, from December 2003
                                              to December 2013. To browse the scenes, they are represented in form of animation:    prism_comb.fli . The total number of scenes are used is 533.