uid=PIE,o=EDI,dc=edirepository,dc=org all public read WAT-YSI-Forest-2006 Year 2006, 15-30 minute measurements of stage, water temperature, and conductivity in a small headwater stream draining draining a mainly forested catchment (55% forest + 19% wetland), Cart Cr., Newbury, MA. Wilfred Wollheim University of New Hampshire (603) 862-5022 Wil.Wollheim@unh.edu http://orcid.org/0000-0002-5009-3212 Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ 2007 English
Continuous measurements, every 15-30 minutes, were made of stage, water temperature, conductivity in Cart Creek, Newbury, MA, a small headwater stream draining a mainly forested catchment (55% forest + 19% wetland). Discharge is determined from stage using discharge vs stage regressions. Several day gaps occur periodically due to removal for recalibration.
Disturbance Core Areas Cart Creek forests disturbance discharge water stage conductivity water temperature conductivity Parker River watershed PIE LTER LTER Controlled Vocabulary
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https://pie-lter.ecosystems.mbl.edu/content/year-2006-15-30-minute-measurements-stage-water-temperature-and-conductivity-small-headwater Watershed water collection and stream characterization site for Cart Creek (forest landuse), Newbury, MA -70.916496276855 -70.916496276855 42.769199371338 42.769199371338 2006-01-06 2006-12-31   Periodic with improvement of rating curve, particularly as more high discharge events are incorporated. This file was initially posted in September 2007. Version 01, 30 Oct 2007 updated metadata to EML level 3+ Version 02, 21Jan2010 keyword update Version 03, 15May2013, metadata and data updated to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 3/14/13 12:02 PM for QA/QC to EML 2.1.0 Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems
YSI information is available from only a small portion of the year. This year, we shifted to using HOBO data loggers for our depth measurements. These can be deployed during the winter period. As a result, for most of the year, depth is based on measurements using a HOBO depth data logger. A borrowed HOBO was temporarily deployed between Jan and Mar 2006 in a temporary location. A new HOBO was permanently deployed in a stilling well in July 2006. Depth measurements by the HOBO deployed in the stilling well are considered reliable. YSI: YSI 6200 data sondes were deployed vertically in a pool deep enough to contain water during dry conditions. The sonde was deployed in a PVC tube, which was attached to ree-bar driven into the stream bed. The PVC tube had holes drilled to allow adequate water circulation. The PVC tube was surveyed upon original deployment in 2001 and resurveyed in 2002 to ensure that elevation did not change during winter ice period. No change was detected. No evidence of change has been noted through 2006 based on discharge measurements. See discussion below for development of the discharge-stage relationship. Recalibration of conducitivty and depth was performed roughly every 4-6 weeks. Instrument drift during deployment periods was not significant. HOBO: Depth and water temperature are recorded by the HOBO data logger. Depths are corrected for barometric pressure changes using readings in an additional HOBO datalogger deployed at Marshview Farm. Between Jan and March 2006, a borrowed data logger was deployed attached to a cinder block placed on the stream bottom. A newly purchased HOBO data logger was deployed in a permanent stilling well in July 2006. The HOBO is deployed in a a PVC tube, which was attached to ree-bar driven into the stream bed. The PVC tube has holes drilled to allow adequate water circulation. The hobo of Jan-Mar 2006 was standardized to the permanet HOBO using: Jan-Mar 2006: YSI_Depth = TEMP_HOBO_DEPTH + 0.0822. HOBO_Depth = YSI_Depth + 0.17549 ADDITIONAL RESEARCH LOCATION COORDINATES: In addition to the decimal degree coordinates given above, locations are also given here in Massachusetts State Plane coordinates. The stream is called Cart Cr. and is located in Newbury MA. Some residential area is present. (~ 10% of the basin). In addition, I-95 passes through the center of the catchment, resulting in roughly 8% impervious surface area STATION STATE X STATE Y YSI-CC 247680 946790 NOTES AND COMMENTS: Velocity measurements were made using a Marsh McBirney current meter. Discharge estimates in Cart Cr. are based on a power rating curve that contains measurements up to a depth of 0.8 meters, as standardized to depth measured with a HOBO datalogger (Column = HOBO_Depth), which is above bankfull stage. Rating curve has been standardized to HOBO_Depth to allow application of a single rating curve across years. Rating curve has an R2 of 0.96 using 32 measurements between 2001 and 2007. All files in this series (2001-2006) are currently standardized to HOBO_depth. The column Depth_Device is included when combining files from several years, over which several different devices were used to calculate depth. HOBO_Depth is the depth that is standardized across all measurement devices so that a single rating curve can be applied. CALCULATIONS: Discharge rating curve : Discharge (l/s) = 731.91 (depth) ^ 5.5172 where depth is HOBO_Depth
WAT-YSI-Forest-2006_csv Year 2006, 15-30 minute measurements of stage, water temperature, and conductivity in a small headwater stream draining draining a mainly forested catchment (55% forest + 19% wetland), Cart Cr., Newbury, MA. WAT-YSI-Forest-2006_0.csv 2393543 26412f5968c5d4a2f7314c364d5a9bab 98be07c4671cd5dc592d62d49defdc2787dd3588 1 0 column , https://pie-lter.ecosystems.mbl.edu/sites/default/files/data/WAT-YSI-Forest-2006_0.csv Date Date date (yyyy-mm-dd) date yyyy-mm-dd NA missing Time Time time (hh:mm) 24 hour date hh:mm NA missing Temp Temp water temperature (oC) celsius real NA missing SpCond SpCond specific conductivity (mS/cm) millisiemenPerCentimeter real NA missing DO% DO% dissolved oxygen percent of saturation (%) percent real NA missing DOConc DOConc dissolved oxygen concentration (mg/l) milligramPerLiter real NA missing pH pH log of the H+ ion concentration dimensionless real NA missing YSI_Depth YSI_Depth stage height measured by YSI (m) meter real NA missing TEMP_HOBO_DEPTH TEMP_HOBO_DEPTH stage height measured by HOBO deployed in temporary location (m) meter real NA missing HOBO_Depth HOBO_Depth stage height standardized to HOBO depth (m) meter real NA missing Depth_Device Depth_Device depth measurement device used to determine discharge string YSI YSI depth sonde | SIGMA = Sigma autosampler depth sonde | TEMP_HOBO = HOBO depth sonde deployed in temporary stilling well | HOBO = HOBO depth sonde deployed in permanent stilling well NA missing Discharge Discharge discharge literPerSecond real NA missing WAT-YSI-Forest-2006_xls Excel metadata and data file associated with the csv data source file. Excel file after downloading is to be used for adding/editing new metadata and data. WAT-YSI-Forest-2006.xls 8688128 5a8633162bbbcb247d88c4f77cc2045e 717c9bee29bd20540b43bb28ad65a1a62aa37491 application/vnd.ms-excel https://pie-lter.ecosystems.mbl.edu/sites/default/files/data/WAT-YSI-Forest-2006.xls document
A common unit of temperature millisiemen per centimeter, electrolytic conductivity of a solution ratio of two quantities as percent composition (1:100) milligrams / liter a designation asserting the absence of an associated unit SI unit of length liters per second