Metadata for ocean samples

The following table contains an overview of the core and partially harmonised metadata attributes. For ease of use, the Metalog website shows more descriptive field names. The table contains both the name shown in the download files and the one shown here on the website. Click the icons in the table to see more information for each field.

Field name
Label shown on website
Count
Most common values
artificial
artificial or special treatment
193
sorted cells, mesocosm
depth_meters
depth (meters)
5600
5, 7, 5.0
environment_feature
source material environment
5600
ocean [ENVO:00000015], surface water [ENVO:00002042], marine photic zone [ENVO:00000209]
environment_material
source material
5600
sea water [ENVO:00002149], marine water body [ENVO:00001999], coastal sea water [ENVO:00002150]
filtration_lower_threshold_um
lower size cutoff (collection filter pore size, µm)
5056
0.22, 0.2, 0.8
filtration_upper_threshold_um
upper size cutoff (pre-filter pore size, µm)
5057
Infinity, 3, 0.2
geographic_location
country/ocean region
5600
Pacific Ocean, Atlantic Ocean, Indian Ocean
latitude
5599
22.75, 36.8313, 48.6
location
4340
Atlantic Ocean, Indian Ocean, North Pacific Gyre
location_resolution
resolution of location info
5600
exact_location, region
longitude
5596
-158.0, -121.9047, -123.5
protocol_label
protocol label
1871
external_TruSeq Nano DNA library, PROT_NUC-RNA(100L)_W0.8-5, PROT_NUC-RNA(1L)_N180-2000
salinity
salinity (PSU)
2446
35, 34, 35.385
sample_alias
5600
ALOHA_BATS_marine_pelagic.S0501, ALOHA_BATS_marine_pelagic.S0502, ALOHA_BATS_marine_pelagic.S0503
sampling_campaign
sampling campaign
3002
Hawaii Ocean Time-series cruises, GEOTRACES ARCTIC 2015, GP13
sampling_platform
sampling platform
1314
SV Tara, CGC Healy, RV Antares
sampling_station
sampling station
3810
ALOHA, underway, CTD
study_code
5600
Larkin_2021_GO-SHIP_marine, TARA_Oceans_protists, Boeuf_2021_marine_HOT_ALOHA
temperature
temperature (°C)
3503
24, 22, 23

Field name
Label shown on website
Count
Most common values
alkalinity
282
2332, 2320, 2321
ammonium_uM
115
0.72, 0.03, 0.19
dissolved_organic_carbon_uM
51
324.8, 316.35, 320.6
nitrate_uM
nitrate concentration (µM)
981
0, 0.244232, -1.016536
nitrite_uM
84
0.05, 0.01, 0.07
note
3
samples from multiple months were pooled
oxygen_uM
7
224, 473, 139.81
phosphate_uM
694
0, 0.05, 0.01
sample_description
4121
No Station, Keywords: GSC:MIxS;MIMS:5.0, Keywords: GSC:MIxS;MIMS:6.0
sample_title
4798
MIMS Environmental/Metagenome sample from coral reef metagenome, Metagenome or environmental sample from marine metagenome, MIMS Environmental/Metagenome sample from marine metagenome
silicate_uM
107
0.1, 0, 0.6
study_accession
486
PRJNA330601, PRJNA330603, PRJNA266672