Dataset title: Water Quality Data (Porewater) from the Shark River Slough, Everglades National Park (FCE LTER), Florida, USA, January 2001 - ongoing Dataset ID: LT_ND_Grahl_003 Research type: Long-term Dataset Creator Name: Dr. Evelyn Gaiser Address: 11200 S.W. 8th Street Miami, Florida 33199 USA Phone: 305-348-6145 Fax: 305-348-4096 Email: gaisere@fiu.edu URL: http://algae.fiu.edu/ Name: Dr. Daniel Childers Address: Arizona State University PO Box 875502 Tempe, AZ 85287 USA Phone: 480-965-2320 Email: dan.childers@asu.edu Name: Rafael Travieso Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Phone: 305-348-7286 Email: travieso@fiu.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 Porewater samples are collected at Florida Coastal Everglades Long Term Ecological Research (FCE LTER) Program Shark River Slough sites SRS1b (not active), SRS1c (not active), SRS1d, SRS2, and SRS3 within the 1 m^2 aboveground sawgrass nondestructive biomass plots. Airstones connected to Tygon tubing are inserted 10-15 cm below the soil surface. Biannually during the wet season, Monoject 140cc syringes are used to collect at least 80 mL of porewater sample and after collection they are immediately placed in an ice filled cooler. The lab processing of these samples include salinity measurements using a YSI, and filtering the sample through a Whatman GF/F filter. Samples are analyzed for inorganic nutrients such as NO2-,NO3-,NH4+,SRP, and DOC. Dissolved nutrients are measured using standard rapid flow analyzer (RFA) techniques and DOC is quantified on a Shimadzu TOC Analyzer. Geographic Coverage Bounding Coordinates Geographic description: SRS1b West bounding coordinate: -80.726 East bounding coordinate: -80.726 North bounding coordinate: 25.758 South bounding coordinate: 25.758 Geographic description: SRS1c West bounding coordinate: -80.574 East bounding coordinate: -80.574 North bounding coordinate: 25.755 South bounding coordinate: 25.755 Geographic description: SRS1d West bounding coordinate: -80.654 East bounding coordinate: -80.654 North bounding coordinate: 25.746 South bounding coordinate: 25.746 Geographic description: SRS2 West bounding coordinate: -80.785 East bounding coordinate: -80.785 North bounding coordinate: 25.55 South bounding coordinate: 25.55 Geographic description: SRS3 West bounding coordinate: -80.853 East bounding coordinate: -80.853 North bounding coordinate: 25.468 South bounding coordinate: 25.468 Temporal Coverage Start Date: 2001-01-01 End Date: 2024-01-01 Data Table Entity Name: LT_ND_Grahl_003 Entity Description: Water Quality Data (Porewater) from the Shark River Slough, Everglades National Park, South Florida Object Name: LT_ND_Grahl_003.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: text Measurement Scale: text Missing Value Code: Attribute Name: Plot Attribute Label: plot Attribute Definition: Plot number Storage Type: ordinal ID Measurement Scale: text Missing Value Code: -9999 (Value will never be recorded) Attribute Name: Date Attribute Label: date Attribute Definition: Collection date - only precise to Month and Year (NOT DAY!) Storage Type: datetime Measurement Scale: Missing Value Code: 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: NandN Attribute Label: nitrate and nitrite Attribute Definition: Composite nitrate and nitrite Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: NO3 Attribute Label: nitrate Attribute Definition: nitrate Storage Type: data Measurement Scale: Units: microMolesPerLiter 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: microMolesPerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: NH4 Attribute Label: ammonium Attribute Definition: ammonium Storage Type: data Measurement Scale: Units: microMolesPerLiter 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: microMolesPerLiter 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: microMolesPerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (Value will never be recorded) Methods Method Step Description Porewater samples are collected at FCE LTER Shark River Slough sites SRS1b (not active), SRS1c (not active), SRS1d, SRS2, and SRS3 within the 1 m^2 aboveground sawgrass nondestructive biomass plots. Airstones connected to Tygon tubing are inserted 10-15 cm below the soil surface. Biannually during the wet season, Monoject 140cc syringes are used to collect at least 80 mL of porewater sample and after collection they are immediately placed in an ice filled cooler. The lab processing of these samples include salinity measurements using a YSI, and filtering the sample through a Whatman GF/F filter. Samples are analyzed for inorganic nutrients such as NO2-,NO3-,NH4+,SRP, and DOC. Dissolved nutrients are measured using standard rapid flow analyzer (RFA) techniques and DOC is quantified on a Shimadzu TOC Analyzer. Submission notes: Date (Column 3) is only precise to Month and Year (NOT DAY!) For SRS1b during the 2004 "wet season", the site was only measured 1 time. For SRS3 during the 2001 and 2002 "wet season", the site was only measured 1 time. In the 2007 "wet season," no sites were measured. No salinity values for SRS1b from Nov-2001 to Nov-2004; for SRS1c from Dec-2005 to Jan-2006; for SRS1d from Nov-2006 to Jan-2017; for SRS2 from Jan 2001 to Jan 2017 and for SRS3 from Jan 2001 to Jan 2017. Instrumentation Airstone, Tygon tubing (1/16 inner diameter), Whatman GF/F filters (0.7 um), Nalgene Reusable Inline Filter Holder, Monoject 140cc syringes, Computer Quality Control Field data are written in pencil on waterproof paper and photocopied upon return to the laboratory. They are then entered into the appropriate digital format. These data are reviewed in hard copy and digital format by the lab manager. Laboratory data are written in pencil on waterproof paper, photocopied prior to computer entry and then entered digitally in duplicate and cross-referenced to hard copy notes. Data outliers, determined by comparison to long-term variance in that parameter, are highlighted in resulting spreadsheets for examination by the principal investigator, who may discard the values. Distribution Online distribution: https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1069/17/6376dd06d6548631ec826f570cce8d42 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 ecological research long-term monitoring nitrate and nitrite water quality wetlands long term monitoring dissolved organic carbon soluble reactive phosphorus ammonium nitrate nitrite porewater biogeochemistry salinity water inorganic nutrients inorganic nutrients Maintenance 1069.17: Added data through 2024-01-01; updated metadata (including abstract, methods, projects, and addition of QUDT unit annotations) Dataset Contact 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 National Park Service scientific research and collecting permit EVER-2001-SCI-0071 National Park Service scientific research and collecting permit EVER-2002-SCI-0070 National Park Service scientific research and collecting permit EVER-2003-SCI-0067 National Park Service scientific research and collecting permit EVER-2004-SCI-0070 National Park Service scientific research and collecting permit EVER-2005-SCI-0081 National Park Service scientific research and collecting permit EVER-2007-SCI-0065 National Park Service scientific research and collecting permit EVER-2009-SCI-0070 National Park Service scientific research and collecting permit EVER-2011-SCI-0071 National Park Service scientific research and collecting permit EVER-2013-SCI-0058 National Park Service scientific research and collecting permit EVER-2015-SCI-0062 National Park Service scientific research and collecting permit EVER-2017-SCI-0054 National Park Service scientific research and collecting permit EVER-2019-SCI-0055 National Park Service scientific research and collecting permit EVER-2022-SCI-0029 National Park Service scientific research and collecting permit EVER-2023-SCI-0011