TW-ICE2017: Environmental and phytoplankton data from the glacier front and Kongsfjorden cruises in 2017

• Main Authors: Assmy, Philipp, Wold, Anette, Vihtakari, Mikko
• Format: Dataset
• Language: unknown
• Published: Norwegian Polar Institute 2019
• Subjects: BIOTA; ENVIRONMENT; OCEANS; Svalbard; biology; chemistry; ecology; climate; environment; geology; glaciology; marine; oceanography; EARTH SCIENCE; BIOLOGICAL CLASSIFICATION; PROTISTS; PLANKTON; PHYTOPLANKTON; OCEAN CHEMISTRY; NUTRIENTS; BIOSPHERE; ECOLOGICAL DYNAMICS; CRYOSPHERE; GLACIERS/ICE SHEETS; GLACIERS; SALINITY/DENSITY; Arctic; Jan Mayen; Rho; glacier; Kongsfjord*; Kongsfjorden; North Atlantic; Phytoplankton
• Online Access: http://data.npolar.no/dataset/56c2cd62-665b-4228-ab5d-d0122748d94c

Datasets collected during TW-ICE cruise to Kongsfjorden in July 2017. The datasets contain measurements close to glacier fronts taken with a research vessel and helicopter, and have been published in Halbach et al. (2019; see the "Citation Custom" field). The datasets are compiled following files: **Nutrient data.csv** Nutrient measurements together with station metadata. Columns: station = station name; vessel = either the research vessel (Lance) or helicopter; lon = longitude as decimal degrees (WGS84); lat = latitude as decimal degrees (WGS84); date = date in ISO8601 format; area = zone used in the article; dist = distance from the closest glacier front in km; depth = bottom depth in m at the station; from = the water depth from which the sample was collected in m; sal = salinity from the closest CTD; temp = water temperature from the closest CTD; type = water type classification based on salinity and temperature (see the article); ctd.name = name of the closest CTD cast; chla = chlorophyll a in mg m-3; phaeo = phaeophytin in mg m-3; tsm = total suspended matter in g m-3; no2 = nitrite concentration in mmol m-3; no3 = nitrate concentration in mmol m-3; sioh4 = silicate concentration in mmol m-3; po4 = phosphate concentration in mmol m-3; nh4 = ammonium concentration in mmol m-3; urea = urea concentration in mmol m-3. **Phytoplankton data.csv** Phytoplankton taxonomy data together with station metadata. Columns: station = station name; lon = longitude as decimal degrees (WGS84); lat = latitude as decimal degrees (WGS84); date = date in ISO8601 format; area = zone used in the article; dist = distance from the closest glacier front in km; depth = bottom depth in m at the station; from = the water depth from which the sample was collected in m; sal = salinity from the closest CTD; temp = water temperature from the closest CTD; type = water type classification based on salinity and temperature (see the article); ctd.name = name of the closest CTD cast; group = coarse functional grouping; species = species or taxa; abundance = abundance of the species in cells dm-3. **CTD data.json** CTD data in a list format. See the [oce-class](https://www.rdocumentation.org/packages/oce/versions/1.0-1/topics/ctd-class) documentation for the `oce` R package for further details on formatting. The results are from a Sea-Bird SBE 9 (Lance) and Hydro-Bios Multi-Water-Sampler (helicopter). **Water type data.csv** Water type classification data together with station metadata. Columns: row_id = unique ID for a CTD cast; station = station name; vessel = either the research vessel (Lance) or helicopter; lon = longitude as decimal degrees (WGS84); lat = latitude as decimal degrees (WGS84); date = date in ISO8601 format; area = zone used in the article; depth = bottom depth in m at the station; ctd.name = name of the closest CTD cast; type = water type classification based on salinity and temperature (see the article); freq = frequency of 1 decibar bins containing the given water type; per = percentage of 1 decibar bins containing the given water type as compared to total number of bins for a CTD cast. **Mixed layer data.csv** Mixed layer data. Columns: station = station name; ctd.name = name of the closest CTD cast; pres = pressure of the maximum N2 bin in decibars; sal = salinity at the maximum N2 depth; temp = water temperature at the maximum N2 depth in Celsius; rho = potential water density at the maximum N2 depth; n2 = the maximum Brunt-Väisälä-frequency during CTD cast close to the surface; mld = estimated mixed layer depth based on maximum N2 in m. **Euphotic depth data.csv** Euphotic depth data. Columns: station = station name; depth = depth of the estimated euphotic depth in m; par = photosynthetically active radiation at the euphotic depth; spar = photosynthetically active radiation on the surface; per = percentage ratio between par and spar.