PVST_SOPACE

Experiment:PVST_SOPACE
PIs*: Bourdin, Guillaume | Chase, Alison
Start Time:Nov 28 2024 11:55PM
End Time:Jun 15 2025 04:58PM
North:21.257
South:-17.203
East:149.030
West:-157.932
Data Types: pigment, cast, flow_thru, above_water
Parameters: abun ag ag_sd allo alpha-beta-car aot ap ap_sd ap_se area_cross_section associated_file_types associated_files associatedmedia bbp biovolume bottle but-fuco cdomf cg cg_sd chl_c1c2 chl_c3 chlide_a cloud cp cp_sd cp_se data_provider_category_automated data_provider_category_manual diadino diato dp dv_chl_a dv_chl_b equivalent_spherical_diameter es es_unc fuco gyro hex-fuco hplc_gsfc length_representation lut lwn lwn_unc measurementvalue measurementvalueid mv_chl_a mv_chl_b neo perid phide_a phytin_a ppc ppc_tcar ppc_tpg pras prediction_score_automated_category psc psc_tcar psd psd_sd psp psp_tpg relaz rrs rrs_unc sal scientificname_automated scientificname_manual scientificnameid_automated scientificnameid_manual sza tacc tacc_tchla tcar tchl tchl_tcar tchla_tpg tot_chl_a tot_chl_b tot_chl_c tpg viola volume_analyzed_ul vsf vsf_sd width_representation wind wt zea
*Listed alphabetically

DOI

10.5067/SeaBASS/PVST_SOPACE/DATA001

Description

SO-PACE will make use of opportunistic instrument deployments on research vessels to produce measurements of hyperspectral Rrs spanning 350 nm - 750 nm using the pySAS system, a continuous above-water autonomous solar tracking platform to collect water-leaving and sky radiances and downwelling irradiance, from which Rrs is calculated. Complementary measurements of IOPs will be made using underway flow-through systems and using pumps that minimize particle damage. IOP measurements will provide several products including: chlorophyll-a concentrations and spectral absorption of phytoplankton (both derived from particulate absorption), and spectral backscattering coefficients. The slope of particulate attenuation will provide estimates of trends in both bulk particle and phytoplankton size distributions. Concentrations of chlorophyll-a as well as additional phytoplankton accessory pigments will be estimated from both particulate absorption and Rrs spectra. Additionally, discrete water samples will be collected from flow-through systems and prepared for onshore laboratory HPLC analysis of phytoplankton pigments. Continuous measurements of phytoplankton communities will be made using two well-established instruments: an Imaging FlowCytobot (IFCB) and a SeaFlow (a continuous flow cytometer). These two instruments will also be deployed on shipboard flow-through systems, and have a combined range of ~ 0.6-150 microns for quantitative phytoplankton assessment.

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Cruises

Cruise
KM2419
TN440
TN444