Sanders, Tina; Petersen, Wilhelm (2022): Nitrogen turnover in the Ems estuary 2014 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.942220
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Abstract:
We measured dissolved and particular inorganic nitrogen concentrations in the Ems estuary (Germany). The sampling campaign was conducted on three days in August 2014 (05.08.2014– 07.08.2014) on board of the German research vessel Ludwig Prandtl. Water samples were taken regularly along the salinity gradient of the estuary irrespective of the state of the tide 2 m below the surface. For stations S276 to S280, only the Ferrybox measurements were taken 2 m below the surface. The water samples were taken by a Niskin-Bottle 2 m above the bottom. The water samples were filtered immediately and stored frozen for analysis of dissolved inorganic nutrient and nitrate stable isotope composition. Filtered samples for suspended particular matter (SPM) concentration, particular carbon and nitrogen content of SPM and nitrogen stable isotope composition of SPM were dried at 50°C and also stored frozen. An onboard membrane pump provided the on-line in situ FerryBox system with water from 2 m below the surface. It continuously measured oxygen, salinity, and temperature during our cruise. More information can be found in Sanders and Laanbroek (2018). The aims of the cruise were 1) to study spatial segregation of nitrogen turnover, 2) to identify the dominant nitrogen turnover processes in the water column and 3) to investigate controlling factors of the nitrogen cycle along the Ems estuary.
Related to:
Sanders, Tina; Laanbroek, Hendrikus J (2018): The distribution of sediment and water column nitrification potential in the hyper-turbid Ems estuary. Aquatic Sciences, 80(4), https://doi.org/10.1007/s00027-018-0584-1
Project(s):
Helmholtz-Zentrum Hereon (Hereon)
Coverage:
Median Latitude: 53.403099 * Median Longitude: 7.020901 * South-bound Latitude: 53.263753 * West-bound Longitude: 6.590649 * North-bound Latitude: 53.688390 * East-bound Longitude: 7.396569
Date/Time Start: 2014-08-05T06:35:00 * Date/Time End: 2014-08-07T07:18:00
Minimum DEPTH, water: 2 m * Maximum DEPTH, water: 8 m
Event(s):
LP201408_S274 * Latitude: 53.688390 * Longitude: 6.609757 * Date/Time: 2014-08-05T06:35:00 * Location: Ems estuary * Campaign: LP201408 * Basis: Ludwig Prandtl * Method/Device: Water sample (WS)
LP201408_S275 * Latitude: 53.550203 * Longitude: 6.684822 * Date/Time: 2014-08-05T08:27:00 * Location: Ems estuary * Campaign: LP201408 * Basis: Ludwig Prandtl * Method/Device: Water sample (WS)
LP201408_S276 * Latitude: 53.410942 * Longitude: 6.935445 * Date/Time: 2014-08-05T09:41:00 * Location: Ems estuary * Campaign: LP201408 * Basis: Ludwig Prandtl * Method/Device: Water sample (WS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Sanders, Tina | |||
| 2 | Sample ID | Sample ID | Sanders, Tina | |||
| 3 | Station label | Station | Sanders, Tina | |||
| 4 | Station label | Station | Sanders, Tina | |||
| 5 | DEPTH, water | Depth water | m | Sanders, Tina | Geocode | |
| 6 | Latitude of event | Latitude | Sanders, Tina | |||
| 7 | Longitude of event | Longitude | Sanders, Tina | |||
| 8 | Date/Time of event | Date/Time | Sanders, Tina | |||
| 9 | Sample method | Sample method | Sanders, Tina | |||
| 10 | Salinity | Sal | Sanders, Tina | On-line-in-situ FerryBox-System (Pertersen et al. 2001) | PSU; measured in water column; Measurement by on-line-in-situ FerryBox-System (Pertersen et al. 2001), The on-line in-situ Ferrybox system has a resolution of one data point per minute. However, only the averages measured at the sampling stations are given here. | |
| 11 | Oxygen | O2 | µmol/l | Sanders, Tina | On-line-in-situ FerryBox-System (Pertersen et al. 2001) | measured in water column; Measurement by on-line-in-situ FerryBox-System (Pertersen et al. 2001), The on-line in-situ Ferrybox system has a resolution of one data point per minute. However, only the averages measured at the sampling stations are given here |
| 12 | Temperature, water | Temp | °C | Sanders, Tina | On-line-in-situ FerryBox-System (Pertersen et al. 2001) | measured in water column; Measurement by on-line-in-situ FerryBox-System (Pertersen et al. 2001), The on-line in-situ Ferrybox system has a resolution of one data point per minute. However, only the averages measured at the sampling stations are given here |
| 13 | δ15N, nitrate | δ15N NO3 | ‰ air | Sanders, Tina | Measurement as N2O using isotope-ratio mass spectrometry (IRMS). Bacterial conversion to N2O, so called Denitrifier-method (according to Sigman et al. 2001; Casciotti et al. 2002). Average of the measurement of 2 replicates | measured in water column; Measurement as N2O using isotope-ratio mass spectrometry (IRMS). Bacterial conversion to N2O, so called Denitrifier-method (according to Sigman et al. 2001; Casciotti et al. 2002). Average of the measurement of 2 replicates |
| 14 | δ18O, nitrate | δ18O NO3 | ‰ | Sanders, Tina | Measurement as N2O using isotope-ratio mass spectrometry (IRMS). Bacterial conversion to N2O, so called Denitrifier-method (according to Sigman et al. 2001; Casciotti et al. 2002). Average of the measurement of 2 replicates | measured in water column, vs. VSMOW; Measurement as N2O using isotope-ratio mass spectrometry (IRMS). Bacterial conversion to N2O, so called Denitrifier-method (according to Sigman et al. 2001; Casciotti et al. 2002). Average of the measurement of 2 replicates |
| 15 | Nitrogen in nitrite | N-[NO2]- | µmol/l | Sanders, Tina | Continuous flow analyser (AA3, Seal Analytics, Germany) | measured in water column; Nutrient concentrations were analysed with a continuous flow analyser (AA3, Seal Analytics, Germany). For nitrite and nitrate analyses, standard photometric techniques were used (Grasshoff et al., 2009) with detection limits of 0.1 and 1.0 micromol per liter. Ammonium was measured fluorometrically with a detection limit of 0.5 micromol per liter based on (Holmes et al., 1999). Detection limits: nitrite (NO2) 0.1 micromol per liter, nitrate (NO3) 1.0 micromol per liter, amonnium (NH4) 0.5 micromol per liter. Average of the measurement of 2 replicates |
| 16 | Nitrogen in ammonium | N-[NH4]+ | µmol/l | Sanders, Tina | Continuous flow analyser (AA3, Seal Analytics, Germany) | measured in water column; Nutrient concentrations were analysed with a continuous flow analyser (AA3, Seal Analytics, Germany). For nitrite and nitrate analyses, standard photometric techniques were used (Grasshoff et al., 2009) with detection limits of 0.1 and 1.0 micromol per liter. Ammonium was measured fluorometrically with a detection limit of 0.5 micromol per liter based on (Holmes et al., 1999). Detection limits: nitrite (NO2) 0.1 micromol per liter, nitrate (NO3) 1.0 micromol per liter, amonnium (NH4) 0.5 micromol per liter. Average of the measurement of 2 replicates |
| 17 | Nitrogen in nitrate | N-[NO3]- | µmol/l | Sanders, Tina | Continuous flow analyser (AA3, Seal Analytics, Germany) | measured in water column; Nutrient concentrations were analysed with a continuous flow analyser (AA3, Seal Analytics, Germany). For nitrite and nitrate analyses, standard photometric techniques were used (Grasshoff et al., 2009) with detection limits of 0.1 and 1.0 micromol per liter. Ammonium was measured fluorometrically with a detection limit of 0.5 micromol per liter based on (Holmes et al., 1999). Detection limits: nitrite (NO2) 0.1 micromol per liter, nitrate (NO3) 1.0 micromol per liter, amonnium (NH4) 0.5 micromol per liter. Average of the measurement of 2 replicates |
| 18 | Suspended particulate matter | SPM | mg/l | Sanders, Tina | measured in suspended particulate matter; In most cases, a water sample volume was pumped on board and filled into 1 L glass water bottles. The samples were filtered through Whatman GF/C glass fibre filters within minutes of sampling. In the lab, filters were dried and weighed. The weight, divided by the sampling volume, yields the suspended matter concentration. The filters were combusted at 500°C and weighed again in order to get the inorganic part. From this, the Loss on Ignition was derived | |
| 19 | Nitrogen, particulate | PN | % | Sanders, Tina | Elemental analyser | wt. %, masured in suspended particulate matter; Elemental analyser of University Hamburg, bulk sample |
| 20 | Carbon, total, particulate | TPC | % | Sanders, Tina | Elemental analyser | wt. %, masured in suspended particulate matter; Elemental analyser of University Hamburg, bulk sample |
| 21 | Carbon/Nitrogen ratio | C/N | Sanders, Tina | Elemental analyser | molar ratio of the percentage; masured in suspended particulate matter; Elemental analyser of University Hamburg, bulk sample | |
| 22 | δ15N | δ15N | ‰ air | Sanders, Tina | Element analyser, Carlo Erba NA2500, coupled with an isotope ratio mass spectrometerFinnigan MAT 252 | masured in suspended particulate matte; d15N-SPM was analysed with an element analyser (Carlo Erba NA 2500) coupled with an isotope ratio mass spectrometer (Finnigan MAT 252). All samples were analysed in replicate. Standards for d15N-SPM are IAEA N1, IAEA N2, and a certified sediment standard (IVA Analysentechnik, Germany). Standard deviation of standards and samples was <0.1 permille |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
366 data points
Data
| 1 Event | 2 Sample ID | 3 Station | 4 Station | 5 Depth water [m] | 6 Latitude | 7 Longitude | 8 Date/Time | 9 Sample method | 10 Sal (PSU; measured in water column...) | 11 O2 [µmol/l] (measured in water column; Mea...) | 12 Temp [°C] (measured in water column; Mea...) | 13 δ15N NO3 [‰ air] (measured in water column; Mea...) | 14 δ18O NO3 [‰] (measured in water column, vs....) | 15 N-[NO2]- [µmol/l] (measured in water column; Nut...) | 16 N-[NH4]+ [µmol/l] (measured in water column; Nut...) | 17 N-[NO3]- [µmol/l] (measured in water column; Nut...) | 18 SPM [mg/l] (measured in suspended particu...) | 19 PN [%] (wt. %, masured in suspended p...) | 20 TPC [%] (wt. %, masured in suspended p...) | 21 C/N (molar ratio of the percentage...) | 22 δ15N [‰ air] (masured in suspended particul...) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LP201408_S274 | s_LP201408_Stat_5_1 | LP201408_Stat_5 | S274 | 2 | 53.6884 | 6.6098 | 2014-08-05T06:35 | Seawater intake system of ship | 31.47 | 281.98 | 22.00 | 11.317 | 6.642 | 0.6 | 5.4 | 3.9 | |||||
| LP201408_S275 | s_LP201408_Stat_6_1 | LP201408_Stat_6 | S275 | 2 | 53.5502 | 6.6848 | 2014-08-05T08:27 | Seawater intake system of ship | 28.87 | 264.88 | 23.17 | 14.254 | 5.497 | 2.9 | 7.3 | 23.3 | |||||
| LP201408_S278 | s_LP201408_Stat_9_1 | LP201408_Stat_9 | S278 | 2 | 53.3223 | 7.2677 | 2014-08-06T06:19 | Seawater intake system of ship | 9.54 | 134.23 | 22.98 | ||||||||||
| LP201408_S276 | s_LP201408_Stat_7_1 | LP201408_Stat_7 | S276 | 2 | 53.4109 | 6.9354 | 2014-08-05T09:41 | Seawater intake system of ship | 22.51 | 262.96 | 24.82 | ||||||||||
| LP201408_S277 | s_LP201408_Stat_8_1 | LP201408_Stat_8 | S277 | 2 | 53.3202 | 7.0210 | 2014-08-06T04:38 | Seawater intake system of ship | 22.05 | 247.04 | 22.79 | ||||||||||
| LP201408_S279 | s_LP201408_Stat_10_1 | LP201408_Stat_10 | S279 | 2 | 53.2966 | 7.3729 | 2014-08-06T07:47 | Seawater intake system of ship | 2.16 | 72.69 | 22.92 | ||||||||||
| LP201408_S280 | s_LP201408_Stat_11_1 | LP201408_Stat_11 | S280 | 2 | 53.2638 | 7.3958 | 2014-08-06T09:35 | Seawater intake system of ship | 0.37 | 103.29 | 23.20 | ||||||||||
| LP201408_S290 | s_LP201408_Stat_12_1 | LP201408_Stat_12 | S290 | 2 | 53.5750 | 6.5906 | 2014-08-07T07:18 | Seawater intake system of ship | 31.05 | 297.91 | 22.17 | 12.208 | 6.431 | 1.0 | 3.2 | 6.1 | |||||
| LP201408_S281 | s_LP201408_Stat_S281_s_281_1 | LP201408_Stat_S281 | S281 | 2 | 53.2668 | 7.3966 | 2014-08-05T06:35 | Seawater intake system of ship | 0.57 | 79.53 | 23.35 | 17.954 | 8.583 | 0.2 | 0.7 | 169.8 | |||||
| LP201408_S282 | s_LP201408_Stat_S282_s282_1 | LP201408_Stat_S282 | S282 | 2 | 53.3220 | 7.3288 | 2014-08-06T10:45 | Seawater intake system of ship | 1.17 | 74.84 | 23.34 | 19.635 | 9.670 | 0.2 | 0.8 | 161.0 | |||||
| LP201408_S283 | s_LP201408_Stat_S283_s_283_1 | LP201408_Stat_S283 | S283 | 2 | 53.3304 | 7.2239 | 2014-08-06T11:15 | Seawater intake system of ship | 3.37 | 86.79 | 23.23 | 21.307 | 10.569 | 0.2 | 0.6 | 135.8 | |||||
| LP201408_S284 | s_LP201408_Stat_S284_s_284_1 | LP201408_Stat_S284 | S284 | 2 | 53.3323 | 7.1148 | 2014-08-06T11:45 | Seawater intake system of ship | 9.75 | 136.74 | 23.16 | 22.346 | 10.580 | 0.4 | 0.5 | 102.8 | |||||
| LP201408_S285 | s_LP201408_Stat_S285_s_285_1 | LP201408_Stat_S285 | S285 | 2 | 53.3230 | 7.0273 | 2014-08-06T12:09 | Seawater intake system of ship | 18.77 | 227.06 | 23.05 | 20.771 | 8.956 | 1.7 | 0.6 | 63.6 | |||||
| LP201408_S286 | s_LP201408_Stat_S286_s_286_1 | LP201408_Stat_S286 | S286 | 2 | 53.3572 | 6.9852 | 2014-08-07T05:30 | Seawater intake system of ship | 24.28 | 256.98 | 22.48 | 17.729 | 6.998 | 3.2 | 3.8 | 51.4 | |||||
| LP201408_S287 | s_LP201408_Stat_S287_s_287_1 | LP201408_Stat_S287 | S287 | 2 | 53.4336 | 6.9183 | 2014-08-07T06:00 | Seawater intake system of ship | 27.89 | 261.29 | 22.79 | 14.674 | 5.707 | 3.5 | 7.3 | 31.1 | |||||
| LP201408_S288 | s_LP201408_Stat_S288_s_288_1 | LP201408_Stat_S288 | S288 | 2 | 53.4992 | 6.8078 | 2014-08-07T06:30 | Seawater intake system of ship | 29.09 | 274.30 | 22.51 | 13.558 | 5.695 | 2.6 | 7.5 | 21.3 | |||||
| LP201408_S289 | s_LP201408_Stat_S289_s_289_1 | LP201408_Stat_S289 | S289 | 2 | 53.5609 | 6.6745 | 2014-08-07T07:00 | Seawater intake system of ship | 29.81 | 272.59 | 22.52 | 12.701 | 5.387 | 2.2 | 8.5 | 15.1 | |||||
| LP201408_S276 | s_LP201408_Stat_7_3 | LP201408_Stat_7 | S276 | 8 | 53.4109 | 6.9354 | 2014-08-05T09:41 | Niskin bottle | 18.316 | 7.484 | 3.3 | 3.6 | 56.2 | ||||||||
| LP201408_S277 | s_LP201408_Stat_8_3 | LP201408_Stat_8 | S277 | 8 | 53.3202 | 7.0210 | 2014-08-06T04:38 | Niskin bottle | 18.799 | 7.442 | 2.9 | 2.3 | 56.4 | ||||||||
| LP201408_S278 | s_LP201408_Stat_9_3 | LP201408_Stat_9 | S278 | 3 | 53.3223 | 7.2677 | 2014-08-06T06:19 | Niskin bottle | 22.306 | 10.537 | 0.6 | 0.5 | 96.4 | ||||||||
| LP201408_S279 | s_LP201408_Stat_10_3 | LP201408_Stat_10 | S279 | 3 | 53.2966 | 7.3729 | 2014-08-06T07:47 | Niskin bottle | 20.814 | 10.425 | 0.6 | 0.7 | 151.0 | ||||||||
| LP201408_S280 | s_LP201408_Stat_11_3 | LP201408_Stat_11 | S280 | 3 | 53.2638 | 7.3958 | 2014-08-06T09:35 | Niskin bottle | 16.841 | 7.816 | 0.3 | 2.3 | 177.3 | ||||||||
| LP201408_S290 | s_LP201408_Stat_12_2 | LP201408_Stat_12 | S290 | 2 | 53.5750 | 6.5906 | 2014-08-07T07:18 | Seawater intake system of ship | 55.81 | 0.25 | 2.34 | 10.92 | |||||||||
| LP201408_S274 | s_LP201408_Stat_5_2 | LP201408_Stat_5 | S274 | 2 | 53.6884 | 6.6098 | 2014-08-05T06:35 | Seawater intake system of ship | 29.57 | 0.22 | 2.58 | 13.68 | |||||||||
| LP201408_S275 | s_LP201408_Stat_6_2 | LP201408_Stat_6 | S275 | 2 | 53.5502 | 6.6848 | 2014-08-05T08:27 | Seawater intake system of ship | 42.90 | 0.27 | 3.05 | 13.18 | 7.998 | ||||||||
| LP201408_S276 | s_LP201408_Stat_7_2 | LP201408_Stat_7 | S276 | 2 | 53.4109 | 6.9354 | 2014-08-05T09:41 | Seawater intake system of ship | 184.62 | 0.29 | 3.40 | 13.68 | 8.417 | ||||||||
| LP201408_S277 | s_LP201408_Stat_8_2 | LP201408_Stat_8 | S277 | 2 | 53.3202 | 7.0210 | 2014-08-06T04:38 | Seawater intake system of ship | 54.35 | 0.20 | 2.59 | 15.11 | |||||||||
| LP201408_S278 | s_LP201408_Stat_9_2 | LP201408_Stat_9 | S278 | 2 | 53.3223 | 7.2677 | 2014-08-06T06:19 | Seawater intake system of ship | 153.00 | 0.14 | 2.58 | 21.50 | |||||||||
| LP201408_S279 | s_LP201408_Stat_10_2 | LP201408_Stat_10 | S279 | 2 | 53.2966 | 7.3729 | 2014-08-06T07:47 | Seawater intake system of ship | 2100.00 | 0.43 | 4.93 | 13.38 | 8.128 | ||||||||
| LP201408_S280 | s_LP201408_Stat_11_2 | LP201408_Stat_11 | S280 | 2 | 53.2638 | 7.3958 | 2014-08-06T09:35 | Seawater intake system of ship | 0.54 | 5.68 | 12.27 | 7.937 | |||||||||
| LP201408_S281 | s_LP201408_Stat_S281_s_281_2 | LP201408_Stat_S281 | S281 | 2 | 53.2668 | 7.3966 | 2014-08-05T06:35 | Seawater intake system of ship | 1083.14 | 0.32 | 4.35 | 15.86 | 7.967 | ||||||||
| LP201408_S282 | s_LP201408_Stat_S282_s282_2 | LP201408_Stat_S282 | S282 | 2 | 53.3220 | 7.3288 | 2014-08-06T10:45 | Seawater intake system of ship | 1170.00 | 0.46 | 5.92 | 15.01 | 7.902 | ||||||||
| LP201408_S283 | s_LP201408_Stat_S283_s_283_2 | LP201408_Stat_S283 | S283 | 2 | 53.3304 | 7.2239 | 2014-08-06T11:15 | Seawater intake system of ship | 585.54 | 0.29 | 4.59 | 18.47 | |||||||||
| LP201408_S284 | s_LP201408_Stat_S284_s_284_2 | LP201408_Stat_S284 | S284 | 2 | 53.3323 | 7.1148 | 2014-08-06T11:45 | Seawater intake system of ship | 138.10 | 0.18 | 3.13 | 20.29 | 7.415 | ||||||||
| LP201408_S285 | s_LP201408_Stat_S285_s_285_2 | LP201408_Stat_S285 | S285 | 2 | 53.3230 | 7.0273 | 2014-08-06T12:09 | Seawater intake system of ship | 120.33 | 0.22 | 2.95 | 15.64 | |||||||||
| LP201408_S286 | s_LP201408_Stat_S286_s_286_2 | LP201408_Stat_S286 | S286 | 2 | 53.3572 | 6.9852 | 2014-08-07T05:30 | Seawater intake system of ship | 57.52 | 0.17 | 2.35 | 16.13 | |||||||||
| LP201408_S287 | s_LP201408_Stat_S287_s_287_2 | LP201408_Stat_S287 | S287 | 2 | 53.4336 | 6.9183 | 2014-08-07T06:00 | Seawater intake system of ship | 41.16 | 0.14 | 1.88 | 15.67 | |||||||||
| LP201408_S288 | s_LP201408_Stat_S288_s_288_2 | LP201408_Stat_S288 | S288 | 2 | 53.4992 | 6.8078 | 2014-08-07T06:30 | Seawater intake system of ship | 35.22 | 0.31 | 3.96 | 14.90 | |||||||||
| LP201408_S289 | s_LP201408_Stat_S289_s_289_2 | LP201408_Stat_S289 | S289 | 2 | 53.5609 | 6.6745 | 2014-08-07T07:00 | Seawater intake system of ship | 23.98 | 0.32 | 3.40 | 12.40 |