| Contributors | Affiliation | Role |
|---|---|---|
| Spivak, Amanda | Woods Hole Oceanographic Institution (WHOI) | Principal Investigator |
| Ake, Hannah | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Atmospheric conditions were recorded by three meteorological towers at PIE-LTER. Wind speed (m s-1) and temperature (deg C, T15min) were measured 14 m above the marsh (42.742 deg N, 70.830 deg W). Wind speed was scaled to 10m height (wnd10). Photosynthetically active radiation (PAR15min; umol m-2 s-1) was recorded by two towers that were deployed at different times between May-November (42.724 deg N, 70.856 deg W and 42.739 deg N, 70.827 deg W).Raw benthic chlorophyll and phaeophytin data from each experimental time point in June, August, and October 2013.
Data are from the PIE-LTER database and information on instrumentation can be found at http://ecosystems.mbl.edu/PIE/data/MON/MON-PR-Met15min2014.html
References:
Spivak, AC and J Ossolinski. 2016. Limited effects of nutrient enrichment on bacterial carbon sources in salt marsh tidal creek sediments. Marine Ecology Progress Series. 544:107-130.10.3354/meps11587
Wind data were scaled from 14m to 10m; temperature and PAR data are 15 minute averages.The file includes raw and log10-transformed benthic chlorophyll and phaeophytin data.
BCO-DMO Data Processing Notes:
-reformatted column names to comply with BCO-DMO standards.
| File |
|---|
atmospheric_conditions.csv (Comma Separated Values (.csv), 689.63 KB) MD5:94bee977bda1103314738fc344b4a381 Primary data file for dataset ID 669760 |
| Parameter | Description | Units |
| date | Date of sampling; mm/dd/yyyy | unitless |
| time | Time of sampling; HH:MM | unitless |
| wind_speed | Wind speed was measured 14 m above the marsh; caled to 10m height | m s-1 |
| temperature | Temperature was measured 14 m above the marsh. | celsius |
| PAR | Recorded by two towers that were deployed at different times between May and November | umol m-2 s-1 |
| ISO_DateTime_UTC | Date/Time (UTC) ISO formatted | unitless |
| Dataset-specific Instrument Name | Temperature sensor |
| Generic Instrument Name | Air Temperature Sensor |
| Dataset-specific Description | Measured air temperature |
| Generic Instrument Description | Measures air temperature |
| Dataset-specific Instrument Name | PAR sensor |
| Generic Instrument Name | Photosynthetically Available Radiation Sensor |
| Dataset-specific Description | Recorded by two towers that were deployed at different times between May-November |
| Generic Instrument Description | A PAR sensor measures photosynthetically available (or active) radiation. The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis. This instrument name is used when specific type, make and model are not known. |
| Dataset-specific Instrument Name | Wind speed measured |
| Generic Instrument Name | Vector-Averaging Wind Recorder |
| Dataset-specific Description | Wind speed (m s-1) and temperature (deg C, T15min) were measured 14 m above the marsh. Wind speed was scaled to 10m height. |
| Generic Instrument Description | The Vector-Averaging Wind Recorder (VAWR) is a system designed by researchers at Woods Hole Oceanographic Institution (WHOI) to make surface meteorological measurements. The standard WHOI Vector Averaging Wind Recorder (VAWR) of the late 1980s through early 1990s was mounted on a toroid buoy (Dean and Beardsley, 1988). In addition to wind speed and direction, the VAWR could also be configured to record water temperature and conductivity data from sensors mounted at 1 meter depth on the mooring bridle of the buoy (Trask et al., 1995).
References:
Dean, JP and RC Beardsley. 1988. A vector-averaging wind recorder (VWAR) system for surface meteorological measurements in CODE (Coastal Ocean Dynamics Experiment). Published by Woods Hole Oceanographic Institution in Woods Hole Mass. Series: CODE technical report no. 44., WHOI-88-20, WHOI Technical report (Woods Hole Oceanographic Institution). 74 pp.
Trask, Richard P.; Way, Bryan S.; Ostrom, William M.; Allsup, Geoffrey P.; Weller, Robert A. 1995. Arabian Sea mixed layer dynamics experiment : mooring deployment cruise report R/V Thomas Thompson cruise number 40, 11 October-25 October 1994. (WHOI DLA URI: http://hdl.handle.net/1912/482) |
| Website | |
| Platform | shoreside Massachusetts |
| Start Date | 2012-09-01 |
| End Date | 2015-08-15 |
Extracted from the NSF award abstract:
This project will address how rates of benthic microalgal production respond to eutrophication and geomorphological changes in human-impacted tidal creeks. Excess nutrient loading increases benthic algal biomass and likely stimulates production rates but the magnitude of nutrient and geomorphological effects on rates of production is unknown. Will changes in benthic algal productivity affect algal-bacterial coupling? Furthermore, how is algal-bacterial coupling affected by geomorphological changes, which may be exacerbated by excess nutrient loading but can also occur in pristine marshes?
This project will take advantage of the infrastructure of the TIDE project, a long-term saltmarsh eutrophication experiment at the Plum Island Ecosystem - Long Term Ecological Research site in Northeastern Massachusetts. Specifically, the PIs will measure benthic metabolism and examine algal- bacterial coupling in fertilized and ambient nutrient tidal creeks in the first field season. The following field season, they will compare sediment metabolism and carbon dynamics on slumped tidal creek walls (i.e. areas where low marsh has collapsed into the tidal creek) to that on the bottom of tidal creeks. In both years, gross and net production will be determined using an innovative triple oxygen isotope technique and traditional dissolved oxygen and inorganic carbon flux measurements. Comparisons between these methods will be useful in informing studies of sediment metabolism. Lipid biomarkers will be used to characterize the sources of organic matter to creek sediments, and stable isotope analysis of bacterial specific biomarkers to identify the sources of organic carbon utilized by sediment bacteria. The biomarkers will reveal whether sediment bacteria use organic matter substrates, such as benthic microalgal carbon, selectively or in proportion to availability. Overall, results from the proposed study will provide important information about how sediment carbon dynamics in shallow tidal creeks respond to long term eutrophication. Furthermore, findings will enhance understanding of the role of tidal creeks in coastal biogeochemistry.
| Funding Source | Award |
|---|---|
| NSF Division of Ocean Sciences (NSF OCE) |