{
  "fields": [{"id":"_id","type":"int"},{"id":"Original Header","type":"text"},{"id":"Common Name","type":"text"},{"id":"Units","type":"text"},{"id":"Data Provider Description","type":"text"},{"id":"media_type","type":"text"},{"id":"result_value_type","type":"text"},{"id":"Notes","type":"text"}],
  "records": [
    [1,"The exact column name as it appeared in the raw file before any cleaning.","A common or understandable name for the variable.","The physical units associated with the variable (e.g., m, PSU, °C).","The description supplied by the original data provider explaining what the variable represents.","The medium from which the measurement was taken (e.g., water, air, sediment). Extracted from the header or assigned manually.","Whether the value is a direct measurement or a calculated value.","Any notes about how the variable was processed or derived.Extracted from the header or assigned manually."],
    [2,"lat","Latitude","degrees north (°N)","Geographic latitude of the sampling location","Ice Core","actual",null],
    [3,"long","Longitude","degrees west (°W)","Geographic longitude of the sampling location.","Ice Core","actual",null],
    [4,"site","Site",null,"Identifier for the sampling site","Ice Core","actual",null],
    [5,"sample","Sample",null,"Sample ID","Ice Core","actual",null],
    [6,"cycle","Cycle",null,"Sampling Cycle","Ice Core","actual",null],
    [7,"date","Day",null,"Sampling Day","Ice Core","actual",null],
    [8,"month","Month",null,"Sampling Month","Ice Core","actual",null],
    [9,"year","Year",null,"Sampling Year","Ice Core","actual",null],
    [10,"chl_mg_m2","Chlorophyll-a per unit area","mg m⁻²","Integrated chlorophyll‑a concentration per unit area, representing ice‑algal biomass within the ice column.","Ice Core","actual",null],
    [11,"chl_ug_l","Chlorophyll-a per unit volume","µg L⁻¹","Chlorophyll‑a concentration in water samples, indicating algal biomass.","Ice Core","actual",null],
    [12,"nox","Nitrite + Nitrate","µmol L⁻¹","Combined concentration of nitrate (NO₃⁻) and nitrite (NO₂⁻), representing oxidized inorganic nitrogen.","Ice Core","actual",null],
    [13,"no3","Nitrate","µmol L⁻¹","Concentration of nitrate","Ice Core","actual",null],
    [14,"no2","Nitrite","µmol L⁻¹","Concentration of nitrite","Ice Core","actual",null],
    [15,"po4","Phosphate","µmol L⁻¹","Concentration of dissolved inorganic phosphate","Ice Core","actual",null],
    [16,"sio4","Silicate","µmol L⁻¹","Concentration of dissolved silicate","Ice Core","actual",null],
    [17,"distance_km","Distance","km",null,"Ice Core","actual",null],
    [18,"poc_ugl","Particulate Organic Carbon","µmol L⁻¹","Concentration of particulate organic carbon","Ice Core","actual",null],
    [19,"pon_ugl","Particulate Organic Nitrogen","µmol L⁻¹","Concentration of particulate organic nitrogen.","Ice Core","actual",null],
    [20,"salinity","Salinity","No unit","Practical salinity of melted sea ice or under‑ice water.","Ice Core","actual",null],
    [21,"intra_nox","Intracellular NOx","µmol L⁻¹",null,"Ice Core","calculated",null],
    [22,"intra_si","Intracellular Silicic Acid","µmol L⁻¹",null,"Ice Core","calculated",null],
    [23,"intra_po4","Intracellular Phosphate","µmol L⁻¹",null,"Ice Core","calculated",null],
    [24,"snow_depth_cm","Snow Depth","cm","Depth of snow overlying the sea ice at the sampling site.","Ice Core","actual",null],
    [25,"ice_thickness_cm","Ice Thickness","cm","Total thickness of the sea‑ice column at the sampling site.","Ice Core","actual",null],
    [26,"nitrogen_demand","Nitrogen Demand","mmol m-2 d-1","Estimated nitrogen requirement for ice‑algal production, based on biomass or growth rate calculations.","Ice Core","calculated",null],
    [27,"bottom_depth","Bottom Depth","m","The depth of the ice-water interface below the snow surface.","Ice Core","actual",null]
]}