July 2002 Workshop Report:

COAST Workshop Agenda
July 18-19, 2002
Burt 193 Seminar Room
COAS, OSU, Corvallis, OR
 
18 July (Thursday)
________________
8:30-8:50Introduction and Overview
   -- goals of workshop
   -- upcoming meetings
   -- 2003 plans
Jack Barth
   
8:50-9:00Review CoOP and COAST objectives and hypothesesPat Wheeler
   
9:00Begin summaries of COAST research
   
9:00-9:40Moored Observations
   9:00-9:20   --physical and meteorologicalMurray Levine
   9:20-9:25   --air temperatureRoger Samelson
   9:25-9:30   --chlorophyll fluorescenceTim Cowles
   9:30-9:35   --spectral radiometersRicardo Letelier
   9:35-9:40   --light backscatterZanna Chase
   
9:40-10:00Land-Based Coastal Radar ObservationsMike Kosro
   
10:00-10:30Aircraft ObservationsJohn Bane
   
10:30Coffee break
   
11:00Survey Observations
   11:00-11:20   --T, S, chlorophyll, velocity, mixingJack Barth
   11:20-11:30   --bioacousticsSteve Pierce
   11:30-11:45   --bio-opticsTim Cowles
   11:45-11:55   --ironZanna Chase
   11:55-12:00   --nutrients, pCO2Burke Hales
   
noonLunch on your own (small groups to Monroe Street eateries)
1:00COAST research summaries continued
   
1:00-1:20Zooplankton ObservationsBill Peterson
   
1:20Vertical Transect Observations
   1:20-1:40   --turbulence, velocity, hydroAlexander Perlin
   1:40-2:00   --nutrients, pCO2Burke Hales
   2:00-2:20   --bio-opticsTim Cowles
   2:20-2:40   --particulate and dissolved organic materialPat Wheeler
   2:40-3:00   --phosphateKathleen Ruttenberg
   
3:00Coffee break
   
3:30-3:50--phytoplankton physiology and pigmentsRicardo Letelier
   
3:50Modeling
3:50-4:05--atmosphericNatalie Perlin
4:05-4:25--physicalJianping Gan
4:25-4:45--ecosystemYvette Spitz
   
4:45Announce Group Topics and Charge to Groups:
define objectives;
list critical data sets (when available?);
identify lead investigators; tentative titles
Barth/Wheeler
   
5:00pmAdjourn



19 July (Friday)
________________
8:30-8:45COAST organizational topicsBarth
   
8:45-9:003D circulation off OregonAllen
   
9:00-9:30Discuss Group Topics
Charge to Groups:
-- define objectives
-- list critical data sets (when available?)
-- identify lead investigators
-- tentative titles
Barth/Wheeler
   
9:30-10:30Large Working Groups on Science Themes

Example Themes (these can be modified or added to):

--Upwelling on the "simple topography" Cascade Head Line
--Surface layer cross-shelf transport (Ekman dynamics)
    (Bill P: this is where most of the organisms are found)
--BBL cross-shelf transport
--Flow-topography interactions and cross-shelf transport
--Heceta Bank bottom cold pool (source? chemistry? biology?)
--Heceta Bank high productivity "pool" (very high upper layer    biomass)
--Atmospheric changes caused by oceanic processes
--Summertime downwelling
--Surface heat flux
   
10:30Coffee break
   
11:00-12:00Large Working Groups on Science Themes continued
   
noonLunch on your own
   
1:00-1:30Discussion of bottom water properties (BBL motion; source
of Heceta Bank cold bottom pool, biology and chemistry in
near-bottom waters). Include surface, highly productive
Heceta Bank pool.
   
1:30-3:00Small Working Groups on Data Integration etc.

Examples (these can be modified or added to):

--calibration of chlorophyll fluorescence (all)

--aircraft surface color and in water optics (Bane, Haines,
   Meaux, Cowles, Letelier, Barth, others?)

--ISUS nutrients versus surface and pumped profiler nutrients
   (Chase, Barth, Hales, Hubbard, Covert, Bandstra)

--moored light backscatter (Chase, Cowles, Letelier, mooring    group?)

--turbulence and mesoscale features and bottom toporgraphic
   features (Perlin, Moum, Ott, Barth, modelers?)

--turbulent chemical vertical fluxes (Hales, Covert, Bandstra,
   Moum, Perlin, others?)

--biological/chemical/physical time series measurements
   (Cowles, Letelier, Hales, Wheeler, Perlin, Moum)

--undercurrent observations (Perlin, Barth, Pierce, Kosro,
   Hales, Choboter)
   
3:00pmWrap-up
   
3:15pmAdjourn



COAST Workshop Report
July 18-19, 2002
COAS, OSU, Corvallis, OR

The COAST CoOP group held a science workshop from 18-19 July 2002 in the
new Burt IV conference room at COAS (see Photo1, Photo2, Photo3). We made
full use of the new computer display capabilities, alternating between web site
tours and powerpoint presentations. About 35 people were in attendance,
including research groups from the University of North Carolina (aircraft
component) and Monterey Bay Aquarium Research Institute (iron measurements).
The first day involved 20-30' updates from each research group on their
progress since the 2001 intensive field year. On the second day we
met as a group to outline major near-term research objectives and then split
into smaller groups to facilitate data comparisons etc.

Jack Barth opened the workshop by reviewing the goals of the workshop and
reminding COASTers about upcoming EPOC (25-28 Sept, 24 July abstract and
registration deadline) and Fall AGU (6-10 Dec, 5 Sep abstract deadline) special
sessions on cross-shelf transport. He also went over tentative plans for the
Jan-Feb 2003 downwelling experiment. COAST had given input to the UNOLS ship
schedulers who met on 17 July to draft research vessel schedules. The
tentative vessels identified for the 2003 work are Wecoma and Roger Revelle.
Once the draft 2003 schedules are made public, they will be distributed to
COASTers and we will begin our intensive planning.

Pat Wheeler then reviewed the overall CoOP goal and the specific hypotheses of
the COAST project. This helped place our discussions in the context of our
long-term goals.

On the second day as we began discussion of immediate scientific objectives
by paraphrasing the COAST goal.

COAST Overall Goal: 3D wind-driven ecosystem response in a region of variable
topography: relatively simple in the north (Cascade Head) and more complex
in the south (Heceta Bank, Cape Perpetua)

Science Objectives (Processes/Data)
-----------------------------------

  1. Surface cross-shelf transport and its influence on biomass distribution (e.g. chlorophyll):
    Comparison between N (Ekman flow & air-sea fluxes) and S (also jet separation)

    1. 1. Times during cruises for focussing on this objective:
      Northern line -- 18-28 May, 7-12 Aug
      Southern line -- 28-31 May, 12-25 Aug

    2. 2. Data Description (immediate goal is to document the spatial/temporal
      sampling resolution and locations, and to determine when data are
      fully processed and calibrated and available for use)

      Surface transport [ML,PMK,TB] [initials indicate people involved]
      • moorings
      • radar
      • wind products
      • shipboard ADCP
      • model (u,v)
      Underwater light field E(x,z,t) [TJC,RL]
      • SeaSoar PAR
      • shipboard PAR
      • SuperSucker PAR
      • moored radiometers
      • moored Q
      • HMSC PAR
      Hydro (x,z,t) [JAB,AP,BH]
      • moored T,S
      • shipboard T,S
        • flow-through
        • SeaSoar
        • Chameleon
        • SuperSucker
        • CTDs
      • aircraft
        • AXBT
        • SST
      • satellite SST
      Chemistry [BH,ZC]
      • nutrients
      • pCO2
      • O2
      • Fe
      Biology [PAW,TJC,RL]
      • moorings
        • fluorescence
        • spectral radiometers
        • backscatter
      • flow-through
        • fluorescence
        • absorption/c
      • SuperSucker
        • fluorescence
        • a/c
        • SAFIRE
        • FRRF
      • aircraft (x,y,z=0-5m)
      • satellite
      • discrete samples
      • zooplankton [SP,WP,MS,JM]
        • nets
        • bioacoustics
          • HTI
          • 120 kHz Biosonics
    3. 3. Analysis & Science Objectives
      • define transport
        • co-ordinate system
        • shelf defined as inshore of the 200 m isobath
      • calculate advective transport both cross-shelf & alongshore
        • water
        • nutrients
        • iron
        • phytoplankton
      • export/import from/to shelf
        • across
        • along
        • retention time
      • surface and subsurface chlorophyll features
        • transition between them
      • surface pool near Stonewall Bank
        • how is the high productivity maintained?
      • time scale of response
        • transitions
      • downwelling/onshore transport
        • 20-25 Aug (south) + other times
      • mixed-layer dynamics
      • Columbia River plume
  2. Carbon and nutrient cycling (We didn't have time to flesh this out at the
    workshop, but recognized that most involved were at OSU so that this could
    be developed further later)
  3. Bottom properties (e.g. density, velocity, chemistry, biology) determined
    by wind-driven motion (upwelling and downwelling) in a region of complex
    bathymetry
    1. 1. Times during cruise for focussin on this objective:
              Northern line -- 18-28 May, 7-12 Aug
              Southern line -- 28-31 May, 12-25 Aug
    2. 2. Data Description (immediate goal is to document the spatial/temporal
      sampling resolution and locations, and to determine when data are
      fully processed and calibrated and available for use)

      Surface transport [ML,PMK,TB]
      • moorings
      • wind products
      • shipboard ADCP
      • model (u,v)
      Hydro (x,z,t) [JAB,AP,BH]
      • moored T,S
      • shipboard T,S
        • SeaSoar (7-10 mab)
        • Chameleon (0 mab)
        • SuperSucker (3 mab)
        • CTDs
      • aircraft
        • AXBT (0 mab)
      Chemistry [BH,ZC]
      • nutrients
      • pCO2
      • O2
      • Fe
      Biology [PAW,TJC,RL]
      • moorings
        • backscatter (38 m NIS, 65 m NMS)
      • SuperSucker
        • fluorescence
        • a/c
        • SAFIRE
        • FRRF
      • discrete samples
      • zooplankton [SP,WP,MS,JM]
        • nets
        • bioacoustics
          • HTI
          • 120 kHz Biosonics
    3. 3. Analysis & Science Objectives
      • define transport
        • co-ordinate system
        • shelf defined as inshore of the 200 m isobath
      • calculate advective transport both cross-shelf & alongshore
        • water
        • nutrients
        • iron
        • phytoplankton
      • export/import from/to shelf
        • across
        • along
        • retention time
      • seed stocks
      • benthic bio-optical features
      • time scale of response
        • transitions
      • downwelling/onshore transport
        • 20-25 Aug (south) + other times
      • cold pool near Stonewall Bank
        • transport
        • source: N and/or S
      • bottom mixed-layer dynamics & thickness
        • turbulent or advective flux out of near-bottom water
      • deep respiration
        • contrast N and S

Brief reports from Small Working Groups on Date Integration etc.

Chlorophyll calibration [TC, RL, PAW, CKB, BH]

Turbulence [AP, JM, MO, JA] ISUS Nitrate versus Supersucker nitrate [ZC, BH, JB]