Citation:

PANGAEA.987877 (dataset in review)

Name: CO₂, CH₄, and N₂O fluxes and porewater concentrations, δ¹⁵N-N₂ dynamics, and nutrient (NO₃⁻, NH₄⁺, PO₄³⁻) release and uptake rates throughout the experiment
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Experiment

Abstract:

This dataset supports the publication "Dry-to-flow mode: impacts on river carbon and nitrogen dynamics". In where we investigated how instant and gradual surface flow resumption (the latter preceded by 6 h inundation), combined with six flow velocities and five levels of sediment transport, affect streambed biogeochemistry in the Queich River (Germany). Over 24 h, we measured CO₂, CH₄, and N₂O fluxes, porewater gas concentrations, and dissolved oxygen dynamics. Additionally, we applied a ¹⁵N-NO₃ tracer to track denitrification via changes in δ¹⁵N-N₂, and determined NO₃⁻ and NH₄⁺ release and uptake rates. The repository also includes videos documenting sediment transport conditions at flow velocities of 0.15, 0.17, 0.18, and 0.21 m s⁻¹.

Keyword(s):

Experiment

Funding:

German Research Foundation (DFG), grant/award no. 455048778 : FlowReSet (ME5498/2-1)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Experimental run	Exp run		Schreckinger, José
2	Method comment	Method comm		Schreckinger, José		Dry-to-flow mode
3	Flow velocity, experimental	Vel exp	m/s	Schreckinger, José
4	Sediment transport	Sed transport	kg/m/s	Schreckinger, José
5	Period	Period		Schreckinger, José
6	Methane, flux	CH4 flux	µmol/m²/day	Schreckinger, José	Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610
7	Carbon dioxide, flux	CO2 flux	mmol/m²/day	Schreckinger, José	Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610
8	Ammonium, flux	[NH4]+ flux	µg/m²/h	Schreckinger, José	Flow analyzers, SEAL Analytical, AutoAnalyzer 3 and Bran+Luebbe, CFA Autoanalyzer
9	Nitrate, flux	[NO3]- flux	µg/m²/h	Schreckinger, José	Flow analyzers, SEAL Analytical, AutoAnalyzer 3 and Bran+Luebbe, CFA Autoanalyzer
10	Nitrous oxide, flux	N2O flux	µmol/m²/day	Schreckinger, José	Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610
11	Phosphate, flux	[PO4]3- flux	µg/m²/h	Schreckinger, José	Flow analyzers, SEAL Analytical, AutoAnalyzer 3 and Bran+Luebbe, CFA Autoanalyzer
12	δ15N, gas, fractional	δ15N N2 fract		Schreckinger, José	Isotope Ratio Mass Spectrometer (IRMS), Thermo Scientific	change in d15N-N2, unitless
13	Methane, porewater	CH4 pw	µmol/l	Schreckinger, José	Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610
14	Carbon dioxide, porewater	CO2 pw	µmol/l	Schreckinger, José	Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610
15	Nitrous oxide, porewater	N2O pw	µmol/l	Schreckinger, José	Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Size:

1038 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Exp run	2 Method comm	3 Vel exp [m/s]	4 Sed transport [kg/m/s]	5 Period	6 CH4 flux [µmol/m²/day]	7 CO2 flux [mmol/m²/day]	8 [NH4]+ flux [µg/m²/h]	9 [NO3]- flux [µg/m²/h]	10 N2O flux [µmol/m²/day]	11 [PO4]3- flux [µg/m²/h]	12 δ15N N2 fract	13 CH4 pw [µmol/l]	14 CO2 pw [µmol/l]	15 N2O pw [µmol/l]
1	Instant	0.127846154	0.000000000	0-12 h	2.120452222	10.78085895
1	Instant	0.127846154	0.000000000	12-24 h	1.630173580	20.04871538
1	Instant	0.127846154	0.000000000	0-24 h	1.875312901	15.41478717	-0.552188552	0.505471380	32.405329450	-0.319865320	2.585254951	0.038578776	128.77366260	0.676960775
1	Instant	0.140846154	0.000000000	0-12 h	1.426016414	18.22321254
1	Instant	0.140846154	0.000000000	12-24 h	1.103298403	28.20016427
1	Instant	0.140846154	0.000000000	0-24 h	1.264657408	23.21168840	-0.552188552	0.973063973	19.981751800	-0.261363636	2.880685241	0.051358865	136.91620100	0.117048535
1	Instant	0.153133333	0.000684346	0-12 h	2.077045336	19.83938157
1	Instant	0.153133333	0.000684346	12-24 h	1.641870299	28.73825308
1	Instant	0.153133333	0.000684346	0-24 h	1.859457817	24.28881732	-0.552188552	0.751683502	13.048082620	-0.259259259	3.447328414	0.071140546	87.35475923	0.048228671
1	Instant	0.169230769	0.001087393	0-12 h	0.832525008	20.77912578
1	Instant	0.169230769	0.001087393	12-24 h	1.224577552	34.03763659
1	Instant	0.169230769	0.001087393	0-24 h	1.028551280	27.40838119	-0.552188552	1.192340067	17.525374260	-0.228535354	2.394561366	0.095144486	39.74033619	0.033961342
1	Instant	0.184076923	0.004459900	0-12 h	0.207366331	23.77564988
1	Instant	0.184076923	0.004459900	12-24 h	0.659954102	39.54555226
1	Instant	0.184076923	0.004459900	0-24 h	0.433660216	31.66060107	-0.552188552	1.614478114	14.473736940	-0.227272727	1.962950633	0.072943939	56.67182121	0.032093218
1	Instant	0.206230769	0.011876490	0-12 h	0.467825670	22.95763539
1	Instant	0.206230769	0.011876490	12-24 h	0.575391641	44.49037040
1	Instant	0.206230769	0.011876490	0-24 h	0.521608655	33.72400290	-0.552188552	1.217171717	9.304154287	-0.215488215	2.055994979	0.057460749	103.88415970	0.029708947
2	Instant	0.127846154	0.000000000	0-12 h	-0.033926526	13.64655212
2	Instant	0.127846154	0.000000000	12-24 h	1.515217299	56.33773570
2	Instant	0.127846154	0.000000000	0-24 h	0.740645387	34.99214391	-0.549242424	1.220538721	19.183745600	-0.404040404	1.172759008	0.020000000	158.99637020	1.171168360
2	Instant	0.140846154	0.000000000	0-12 h	0.501686376	27.87635700
2	Instant	0.140846154	0.000000000	12-24 h	1.102514291	61.94283437
2	Instant	0.140846154	0.000000000	0-24 h	0.802100334	44.90959568	-0.549242424	1.907407407	14.915472720	-0.370791246	1.635387822	0.067885260	113.08717150	0.085424049
2	Instant	0.153133333	0.000684346	0-12 h	0.880552113	28.27346277
2	Instant	0.153133333	0.000684346	12-24 h	1.846887017	57.29473558
2	Instant	0.153133333	0.000684346	0-24 h	1.363719565	42.78409918	-0.549242424	1.913720539	16.859273970	-0.356060606	1.878046703	0.044403108	107.43758630	0.048598673
2	Instant	0.169230769	0.001087393	0-12 h	0.229004484	30.50763421
2	Instant	0.169230769	0.001087393	12-24 h	1.591462745	60.75337237
2	Instant	0.169230769	0.001087393	0-24 h	0.910233614	45.63050329	-0.549242424	1.643097643	9.120472366	-0.327861953	1.782917393	0.044504750	107.64431400	0.029394228
2	Instant	0.184076923	0.004459900	0-12 h	0.393423402	21.38831711
2	Instant	0.184076923	0.004459900	12-24 h	1.137779987	60.45860585
2	Instant	0.184076923	0.004459900	0-24 h	0.765601694	40.92346148	-0.549242424	2.057659933	9.668888320	-0.311868687	1.798754607
2	Instant	0.206230769	0.011876490	0-12 h	1.359207552	23.78540604
2	Instant	0.206230769	0.011876490	12-24 h	1.313003045	56.67837946
2	Instant	0.206230769	0.011876490	0-24 h	1.336105298	40.23189275	-0.549242424	2.203282828	5.578813893	-0.305555556	1.707439194	0.016276853	114.59164660	0.023370086
3	Instant	0.127846154	0.000000000	0-12 h	2.701332098	23.40010559
3	Instant	0.127846154	0.000000000	12-24 h	2.034680210	58.60968515
3	Instant	0.127846154	0.000000000	0-24 h	2.368006154	41.00489537	-0.537878788	0.413720539	10.021532880	-0.370791246	2.473539664	0.022148081	109.17468660	0.036083110
3	Instant	0.140846154	0.000000000	0-12 h	1.948214922	35.26993829
3	Instant	0.140846154	0.000000000	12-24 h	1.926450972	53.81747079
3	Instant	0.140846154	0.000000000	0-24 h	1.937332947	44.54370454	-0.537878788	0.941498316	7.994606709	-0.312710438	2.442248398	0.047412884	120.37365480	0.038821025
3	Instant	0.153133333	0.000684346	0-12 h	2.125481139	35.30704967
3	Instant	0.153133333	0.000684346	12-24 h	3.223039086	51.12951145
3	Instant	0.153133333	0.000684346	0-24 h	2.674260112	43.21828056	-0.537878788	1.355639731	8.275603332	-0.283249158	2.038715490	0.019742849	122.70488900	0.032118437
3	Instant	0.169230769	0.001087393	0-12 h	1.766359587	45.12858297
3	Instant	0.169230769	0.001087393	12-24 h	2.701418999	54.26344846
3	Instant	0.169230769	0.001087393	0-24 h	2.233889293	49.69601571	-0.537878788	0.824915825	6.499785094	-0.313552189	2.202896703	0.020556617	116.54503440	0.023097498
3	Instant	0.184076923	0.004459900	0-12 h	0.733085888	30.43207676
3	Instant	0.184076923	0.004459900	12-24 h	1.884511009	57.07657814
3	Instant	0.184076923	0.004459900	0-24 h	1.308798449	43.75432745	-0.537878788	1.154461279	7.112961926	-0.288720539	1.741622546	0.015496081	137.29296500	0.021442802
3	Instant	0.206230769	0.011876490	0-12 h	1.342450675	33.31778933
3	Instant	0.206230769	0.011876490	12-24 h	2.467994128	56.64673343
3	Instant	0.206230769	0.011876490	0-24 h	1.905222402	44.98226138	-0.537878788	1.465488215	0.557293784	-0.277356902		0.016944950	146.90516120	0.019633400
4	Gradual	0.127846154	0.000000000	0-12 h	2.037214189	48.45877300
4	Gradual	0.127846154	0.000000000	12-24 h	2.179445281	34.95731986
4	Gradual	0.127846154	0.000000000	0-24 h	2.108329735	41.70804643	-0.441919192	2.573232323	23.448739460	-0.268097643	3.478340301	0.071552417	182.59938030	0.045199710
4	Gradual	0.140846154	0.000000000	0-12 h	0.373505940	59.34813991
4	Gradual	0.140846154	0.000000000	12-24 h	2.098454574	30.59954095
4	Gradual	0.140846154	0.000000000	0-24 h	1.235980257	44.97384043	-0.510101010	2.699494949	9.050718388	-0.239057239	3.526480545	0.045325308	77.16585335	0.040706523
4	Gradual	0.153133333	0.000684346	0-12 h	1.930899625	57.61942112
4	Gradual	0.153133333	0.000684346	12-24 h	2.644303626	28.41662008
4	Gradual	0.153133333	0.000684346	0-24 h	2.287601626	43.01802060	-0.564393939	3.153198653	9.161856325	-0.240319865	3.430391005	0.054164722	70.93634031	0.034860598
4	Gradual	0.169230769	0.001087393	0-12 h	1.557146002	63.99469503
4	Gradual	0.169230769	0.001087393	12-24 h	2.361394359	28.41114856
4	Gradual	0.169230769	0.001087393	0-24 h	1.959270180	46.20292179	-0.564393939	3.231481481	4.972344109	-0.239057239	3.690181300	0.070330173	108.24366040	0.032736292
4	Gradual	0.184076923	0.004459900	0-12 h	1.121881540	56.22629601
4	Gradual	0.184076923	0.004459900	12-24 h	1.896078788	30.04383047
4	Gradual	0.184076923	0.004459900	0-24 h	1.508980164	43.13506324	-0.564393939	3.651936027	9.524289885	-0.254629630	3.449780973	0.068411504	83.94527320	0.025802650
4	Gradual	0.206230769	0.011876490	0-12 h	1.299400500	55.93378797
4	Gradual	0.206230769	0.011876490	12-24 h	2.196859966	26.20184316
4	Gradual	0.206230769	0.011876490	0-24 h	1.748130233	41.06781557	-0.564393939	3.549663300	7.437913861	-0.222222222	2.671690316	0.069089468	80.04401336	0.025084380
5	Gradual	0.127846154	0.000000000	0-12 h	1.028292916	62.55034054
5	Gradual	0.127846154	0.000000000	12-24 h	2.102497855	25.14479505
5	Gradual	0.127846154	0.000000000	0-24 h	1.565395385	43.84756780	-0.474747475	2.497053872	38.246675850	-0.164983165	3.119490670	0.058414142	115.97919290	1.285977776
5	Gradual	0.140846154	0.000000000	0-12 h	0.867572592	70.55397456
5	Gradual	0.140846154	0.000000000	12-24 h	1.764869860	20.22833037
5	Gradual	0.140846154	0.000000000	0-24 h	1.316221226	45.39115246	-0.474747475	3.144360269	38.032269640	-0.108585859	3.653793844	0.021153310	110.98982690	0.087188043
5	Gradual	0.153133333	0.000684346	0-12 h	2.042456369	64.71448875
5	Gradual	0.153133333	0.000684346	12-24 h	1.904179577	18.73891702
5	Gradual	0.153133333	0.000684346	0-24 h	1.973317973	41.72670288	-0.474747475	3.575336700	29.647731480	-0.109427609		0.017634902	119.73564920	0.054666885
5	Gradual	0.169230769	0.001087393	0-12 h	0.415412480	75.46196391
5	Gradual	0.169230769	0.001087393	12-24 h	1.900500573	16.71570246
5	Gradual	0.169230769	0.001087393	0-24 h	1.157956527	46.08883318	-0.474747475	3.160353535	23.037120970	-0.101851852	3.765867514	0.020883610	142.47138140	0.062553499
5	Gradual	0.184076923	0.004459900	0-12 h	0.953777368	66.89265575
5	Gradual	0.184076923	0.004459900	12-24 h	1.178887296	24.88077803
5	Gradual	0.184076923	0.004459900	0-24 h	1.066332332	45.88671689	-0.474747475	3.041666667	21.075823150	-0.122474747	3.244778562	0.020094456	166.94440680	0.043674201
5	Gradual	0.206230769	0.011876490	0-12 h	0.837101725	63.63586921
5	Gradual	0.206230769	0.011876490	12-24 h	1.207015364	21.17673527
5	Gradual	0.206230769	0.011876490	0-24 h	1.022058544	42.40630224	-0.474747475	3.803451178	26.017824350	-0.117845118	2.446192079	0.018344695	153.33573950	0.047441413
6	Gradual	0.127846154	0.000000000	0-12 h	0.443660297	73.62875262
6	Gradual	0.127846154	0.000000000	12-24 h	2.004102421	26.16735548
6	Gradual	0.127846154	0.000000000	0-24 h	1.223881359	49.89805405	-0.551346801	1.854797980	11.792077970	-0.237373737	2.504776995	0.029752731	130.70927470	1.181411257
6	Gradual	0.140846154	0.000000000	0-12 h	0.447107398	80.73723811
6	Gradual	0.140846154	0.000000000	12-24 h	1.781896892	23.02687170
6	Gradual	0.140846154	0.000000000	0-24 h	1.114502145	51.88205490	-0.486111111	1.409090909	9.854546766	-0.208754209	2.731021699	0.023164496	138.66043570	0.052171839
6	Gradual	0.153133333	0.000684346	0-12 h	2.511023813	77.32543846
6	Gradual	0.153133333	0.000684346	12-24 h	2.617571920	21.73060596
6	Gradual	0.153133333	0.000684346	0-24 h	2.564297866	49.52802221	-0.471380471	2.107323232	5.456519502	-0.186026936	3.421057048	0.026167694	126.31921500	0.074892460
6	Gradual	0.169230769	0.001087393	0-12 h	0.962145475	83.23300152
6	Gradual	0.169230769	0.001087393	12-24 h	2.037192377	19.73572408
6	Gradual	0.169230769	0.001087393	0-24 h	1.499668926	51.48436280	-0.499579125	1.924242424	6.466301918	-0.195707071	3.115801980	0.020318322	119.58532420	0.025886728
6	Gradual	0.184076923	0.004459900	0-12 h	0.423033612	78.73491609
6	Gradual	0.184076923	0.004459900	12-24 h	1.759310965	25.20562859
6	Gradual	0.184076923	0.004459900	0-24 h	1.091172289	51.97027234	-0.551346801	2.289983165	5.947115206	-0.210016835	2.040413638	0.022590296	110.00875830	0.019936559
6	Gradual	0.206230769	0.011876490	0-12 h	1.200298044	76.22150785
6	Gradual	0.206230769	0.011876490	12-24 h	1.952070035	21.51191727
6	Gradual	0.206230769	0.011876490	0-24 h	1.576184039	48.86671256	-0.551346801	2.955387205	4.206681348	-0.188552189		0.022432422	150.02172470	0.020076936