69890 Entity Published / External 68095 Nutrient and water chemistry data of Aua Reef in American Samoa from samples collected along a water quality gradient between 2022-09-13 to 2022-09-23 Data Set Completed 2023 Data dictionary for nutrients and water chemistry data from seawater samples collected along a water quality gradient in Aua reef, American Samoa. Data Table Yes Data dictionary for nutrients and water chemistry data from seawater samples collected along a water quality gradient in Aua reef, American Samoa. 1 LOCAL_DATE DATE No No Active Local date water samples was collected (mm/dd/yyyy) 2 LOCAL_TIME DATE No No Active Local time water sample was collected (hh:mm) 3 SITE_ID TEXT No No Active An identifier for the ecological site at the island or atoll (Tutuila) associated with the water sample. Combines a 3-letter island code (TUT) with a 2-4 digit site number. 3 LATITUDE NUMERIC No No Active Latitude in decimal degrees, WGS84, for the water sample. 3 LONGITUDE NUMERIC No No Active Longitude in decimal degrees, WGS84, for the water sample. 4 CTD_TEMPERATURE NUMERIC No No Active Measured temperature value in degrees Celsius from CTD cast at time and depth water sample was collected 5 CTD_SALINITY NUMERIC No No Active Measured salinity value in Practical Salinity Units (PSU) from CTD cast at time and depth water sample was collected 6 PH NUMERIC No No Active Measured pH value at time and depth water sample was collected, using pH sensor in situ 7 TSS NUMERIC No No Active Total suspended sediments as meaured in mg/L (weight of sediment/volume of seawater) 8 CHL NUMERIC No No Active Chlorophyll a (microg/L) from water sample analyzed by lab 9 TOTAL_N NUMERIC No No Active Total dissolved nitrogen (micromol/L) from water sample analyzed by lab 10 TOTAL_P NUMERIC No No Active Total dissolved phosphorus (micromol/L) from water sample analyzed by lab 11 PHOSPHATE NUMERIC No No Active Dissolved phosphate (micromol/L) from water sample analyzed by lab 12 SILICATE NUMERIC No No Active Dissolved silicate (micromol/L) from water sample analyzed by lab 13 NITRATE_NITRITE NUMERIC No No Active Sum of dissolved nitrate and nitrite (micromol/L) from water sample analyzed by lab 14 AMMONIA NUMERIC No No Active Dissolved ammonia (micromol/L) from water sample analyzed by lab gov.noaa.nmfs.inport:69890 Lori Luers 2023-05-11T02:13:43 Lori Luers 2023-08-29T19:10:02 2023-08-29 Pacific Islands Fisheries Science Center PIFSC 1845 Wasp Blvd. Honolulu HI 96818 USA 808-725-5300 https://www.pifsc.noaa.gov 8:00 a.m. - 4:30 p.m. 1001 Public No 1 Year