Dataset title: Water Quality Data (Grab Samples) from the Taylor Slough, Everglades National Park (FCE LTER), Florida, USA, May 2001 - ongoing Dataset ID: LT_ND_Losada_002 Research type: Long-term Dataset Creator Name: Dr. Tiffany Troxler Position: Project Collaborator Organization: Southeast Environmental Research Center Address: Florida International University University Park OE 148 Miami, FL 33199 USA Phone: 305-348-1453 Fax: 305-348-4096 Email: troxlert@fiu.edu URL: http://wetland.fiu.edu/ Name: Dr. Daniel Childers Position: Associate Director for Research| Professor Organization: Global Institute of Sustainability| School of Sustainability Address: Arizona State University PO Box 875502 Tempe, AZ 85287 USA Phone: 480-965-2320 Fax: 480-965-8087 Email: dan.childers@asu.edu Metadata Provider Organization: Florida Coastal Everglades LTER Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Phone: 305-348-6054 Email: fcelter@fiu.edu URL: https://fcelter.fiu.edu Dataset Abstract Water quality samples are being collected using ISCO autosamplers at all wetland sites (that is, all sites except TS/Ph-9, 10, and 11). The autosamplers contain 24 1L bottles. Water is sampled by programming the autosamplers to take composite samples once every 3 days. These samples are a composite of four 250mL subsamples drawn every 18 hours (a sampling scheme that captures a dawn, noon, dusk, and midnight sample in every three day composite). The samples are collected every 3-4 weeks and analyzed for total phosphorus (TP), total nitrogen (TN), and salinity. When sites are visited to collect these samples, we also collect a grab sample that is immediately put on ice. A portion of these grab samples is filtered through a Whatman GF/F filter immediately upon return to the lab, and the filtered samples are analyzed for inorganic nutrients such as NO2-, NO3-, NH4+, SRP, and DOC. The unfiltered fraction of these grab samples is analyzed for TP, TN, and TOC. We use these montly grab samples to generate relationships between TP and SRP, and between TN and NO2- + NO3- + NH4+. Dissolved nutrients are measured using standard rapid flow analyzer (RFA) techniques. TP is analyzed with a modified Solorzano and Sharp (1980) technique. TN is measured with an Antec TN analyzer, TOC and DOC are quantified on a Shimadzu TOC Analyzer, and salinity is measured with a YSI conductivity meter. In addition to the regular water quality monitoring, we use the rain level actuators at all freshwater sites to trigger water sampling after rain events exceed a given threshold of duration and/or intensity. As currently programmed, when the threshold of = 2.5 cm of rain per hour is passed, the autosampler at that site collects a 500mL sample 30 minutes after the threshold has been reached. Rain event samples are collected, treated, and analyzed as all other water quality samples. Geographic Coverage Study Extent Description The Study Extent of this dataset includes 3 of the FCE Taylor Slough research sites within Everglades National Park, South Florida Bounding Coordinates Geographic description: FCE LTER Site TS/Ph6a West bounding coordinate: -80.65 East bounding coordinate: -80.65 North bounding coordinate: 25.21 South bounding coordinate: 25.21 Geographic description: FCE LTER Site TS/Ph7a West bounding coordinate: -80.64 East bounding coordinate: -80.64 North bounding coordinate: 25.19 South bounding coordinate: 25.19 Geographic description: FCE LTER Site TS/Ph8 West bounding coordinate: -80.53 East bounding coordinate: -80.53 North bounding coordinate: 25.23 South bounding coordinate: 25.23 FCE LTER Sites: TS/Ph6a,TS/Ph7a,TS/Ph8 Temporal Coverage Start Date: 2001-05-30 End Date: 2023-12-19 Data Table Entity Name: LT_ND_Losada_002.csv Entity Description: Water Quality Data (Grab Samples) from the Taylor Slough, Everglades National Park, South Florida Object Name: LT_ND_Losada_002.csv Data Format Number of Header Lines: 1 Attribute Orientation: column Field Delimiter: , Number of Records: Attributes Attribute Name: SITENAME Attribute Label: sitename Attribute Definition: Name of LTER site Storage Type: string Measurement Scale: TS/Ph6a= FCE LTER Site TS/Ph6a TS/Ph7a= FCE LTER Site TS/Ph7a TS/Ph8= FCE LTER Site TS/Ph8 Missing Value Code: Attribute Name: Date Attribute Label: date Attribute Definition: Collection date Storage Type: datetime Measurement Scale: Missing Value Code: Attribute Name: Time Attribute Label: time Attribute Definition: Collection time Storage Type: datetime Measurement Scale: Missing Value Code: -9999 (Value will never be recorded) Attribute Name: Salinity Attribute Label: salinity Attribute Definition: Composite salinity Storage Type: data Measurement Scale: Units: PSU Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (Value will never be recorded) Attribute Name: TN Attribute Label: total nitrogen Attribute Definition: Composite total nitrogen Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (Value will never be recorded) Attribute Name: TP Attribute Label: total phosphorus Attribute Definition: Composite total phosphorus Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: TOC Attribute Label: total organic carbon Attribute Definition: Composite total organic carbon Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (Value will never be recorded) Attribute Name: NH4 Attribute Label: ammonium Attribute Definition: ammonium Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: NandN Attribute Label: nitrate and nitrite Attribute Definition: nitrate and nitrite Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: NO2 Attribute Label: nitrite Attribute Definition: nitrite Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: SRP Attribute Label: soluble reactive phosphorus Attribute Definition: soluble reactive phosphorus Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: DOC Attribute Label: dissolved organic carbon Attribute Definition: dissolved organic carbon Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (Value will never be recorded) Attribute Name: NO3 Attribute Label: nitrate Attribute Definition: nitrate Storage Type: data Measurement Scale: Units: micromolePerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Methods Sampling Description Water quality samples are being collected using ISCO autosamplers at all wetland sites (that is, all sites except TS/Ph-9, 10, and 11). The autosamplers contain 24 1L bottles. Water is sampled by programming the autosamplers to take composite samples once every 3 days. These samples are a composite of four 250mL subsamples drawn every 18 hours (a sampling scheme that captures a dawn, noon, dusk, and midnight sample in every three day composite). Collection of composite samples may result in a composite sample which is less than three days; samples are collected every 3-4 weeks. The recorded date for each composite sample indicates the end date of the sample interval. Samples are analyzed for total phosphorus (TP), total nitrogen (TN), and salinity. When sites are visited to collect these samples, we also collect a grab sample that is immediately put on ice. A portion of these grab samples is filtered through a Whatman GF/F filters (0.7 um) immediately upon return to the lab, and the filtered samples are analyzed for inorganic nutrients such as NO2-, NO3-, NH4+, SRP, and DOC. The unfiltered fraction of these grab samples is analyzed for TP, TN, and TOC. We use these montly grab samples to generate relationships between TP and SRP, and between TN and NO2- + NO3- + NH4+. Dissolved nutrients are measured using standard rapid flow analyzer (RFA) techniques. TP is analyzed with a modified Solorzano and Sharp (1980) technique. TN is measured with an Antec TN analyzer, TOC and DOC are quantified on a Shimadzu TOC Analyzer, and salinity is measured with a YSI conductivity meter. In addition to the regular water quality monitoring, we use the rain level actuators at all freshwater sites to trigger water sampling after rain events exceed a given threshold of duration and/or intensity. As currently programmed, when the threshold of = 2.5 cm of rain per hour is passed, the autosampler at that site collects a 500mL sample 30 minutes after the threshold has been reached. Rain event samples are collected, treated, and analyzed as all other water quality samples. Method Step Description Water quality samples are being collected using ISCO autosamplers at all wetland sites (that is, all sites except TS/Ph-9, 10, and 11). The autosamplers contain 24 1L bottles. Water is sampled by programming the autosamplers to take composite samples once every 3 days. These samples are a composite of four 250mL subsamples drawn every 18 hours (a sampling scheme that captures a dawn, noon, dusk, and midnight sample in every three day composite). Collection of composite samples may result in a composite sample which is less than three days; samples are collected every 3-4 weeks. The recorded date for each composite sample indicates the end date of the sample interval. Samples are analyzed for total phosphorus (TP), total nitrogen (TN), and salinity. When sites are visited to collect these samples, we also collect a grab sample that is immediately put on ice. A portion of these grab samples is filtered through a Whatman GF/F filters (0.7 um) immediately upon return to the lab, and the filtered samples are analyzed for inorganic nutrients such as NO2-, NO3-, NH4+, SRP, and DOC. The unfiltered fraction of these grab samples is analyzed for TP, TN, and TOC. We use these montly grab samples to generate relationships between TP and SRP, and between TN and NO2- + NO3- + NH4+. Dissolved nutrients are measured using standard rapid flow analyzer (RFA) techniques. TP is analyzed with a modified Solorzano and Sharp (1980) technique. TN is measured with an Antec TN analyzer, TOC and DOC are quantified on a Shimadzu TOC Analyzer, and salinity is measured with a YSI conductivity meter. In addition to the regular water quality monitoring, we use the rain level actuators at all freshwater sites to trigger water sampling after rain events exceed a given threshold of duration and/or intensity. As currently programmed, when the threshold of = 2.5 cm of rain per hour is passed, the autosampler at that site collects a 500mL sample 30 minutes after the threshold has been reached. Rain event samples are collected, treated, and analyzed as all other water quality samples. Submission notes: Missing Sep-01, Oct-08, Dec-18, Apr-20, June-21, Sept-21 and Nov-21 sampling for all sites; TS/Ph7a is also missing May-03; TS/Ph6a is also missing Dec-21, Dec-22, and Apr-23; At TS/Ph8 a 01-Feb-04 Sample was taken as a January 2004 sample; At TS/Ph6a and TS/Ph7a 01-Apr-19 samples were taken as March 2019 samples, 01-Apr-22 samples were taken as March 2022 samples, 03-Oct-22 samples were taken as September 2022 samples, and 05-Apr-23 samples were taken as March samples Instrumentation ISCO Model 6700 & ISCO Model 6710 Auto-samplers, Whatman GF/F filters (0.7 um), Nalgene Reusable Inline Filter Holder, Monoject 140cc syringes, Computer Quality Control Data that already meets Lab QA/QC is then evaluated by a Field Technician for patterns and trends, and finally by the PI for patterns and trends. When looking at patterns and trends, the Field Technician and/or PI looks for any values that "spike" or "valley" with an above/below quanity greater than double preceding and post values. Distribution Online distribution: https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1075/15/4169cb49e9e4b22ff4e04bb8a4ea21ee Intellectual Rights This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you. Dataset Keywords FCE Florida Coastal Everglades LTER Taylor Slough TN NO3 TP TOC NH4 DOC SRP N+N NO2 Everglades National Park grab sample intensive water long-term monitoring ecological research nitrate water quality inorganic nutrients salinity biogeochemistry total nitrogen total phosphorus total organic carbon ammonium nitrous oxide soluble reactive phosphorus dissolved organic carbon inorganic nutrients Data Submission Date: 2023-06-28 Maintenance knb-lter-fce.1075.15: Added data and updated metadata (including addition of QUDT unit annotations) Dataset Contact Name: Emily Standen Position: Technical Staff Organization: Southeast Environmental Research Center Address: Florida International University University Park Miami, FL 33199 USA Phone: 305-348-1576 Email: estanden@fiu.edu URL: http://www.fiu.edu/~ecosyst/ Position: Information Manager Organization: Florida Coastal Everglades LTER Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Email: fcelter@fiu.edu URL: https://fcelter.fiu.edu Project permits EVER-2007-SCI-0065 EVER-2008-SCI-0069 EVER-2009-SCI-0063 EVER-2009-SCI-0070 EVER-2011-SCI-0071 EVER-2013-SCI-0058 EVER-2015-SCI-0062 EVER-2017-SCI-0054 EVER-2019-SCI-0055 EVER-2022-SCI-0029 EVER-2023-SCI-0011 Dataset Submission Date 2023-06-28 Information Management Notes This is a long-term biogeochemistry dataset and subsequent data will be appended. This dataset replaces all previous versions of LT_ND_Losdadal_002 original and (v1-v7). The FCE program is discontinuing its practice of versioning data as of March 2013.