Author: nweston

The lab will host a Research Experience for Undergraduates (REU) intern during summer 2018 with funding from the National Science Foundation.  Applications due March 16. Click here for more information and to apply.

After a pilot installation, we installed the full-scale sediment exclusion experiment in the Delaware River in summer 2017. At two tidal marsh sites in the Delaware (Dividing Creek and Dennis Creek), we installed 3 sediment exclusion plots and 3 control plots. Each plot consists of a surface elevation table (SET) and 4 marker horizon plots.…

We continued our tidal creek import/export measurements during the 2017 field season.  We’ve measured the tidal exchange of materials (water, sediment, carbon, nutrients) several times at high-elevation and low-elevation marsh sites, to understand if marsh geomorphology influences the exchange of these materials. Eric installs sampling equipment at low tide at the start of an import/export…

We’ve put effort into understanding the verical marsh-atmosphere exchange of CO2 (through both chamber measurements and eddy covariance towers), and the later exchange of carbon through the import/export measurements, but we wanted to evaluate the vertical exchange of C between the aquatic system and the atmosphere. Mikala’s project this summer was to measure CO2 (and…

We visited Plum Island for a winter sampling in March 2017.  We got our wish: a frozen marsh! Chamber measurements with ice over the collars yielded very low measurements of CO2 change, but we did observe some respiration. We can call our research vessel an ‘icebreaker’ now!  I’ve never needed to break through ice in…

We visited our pilot sediment-exclusion plots in the Delaware River in November 2016.  The plots had been installed in May 2016, and we weren’t sure how well they’d stand up after 6 months.  We were also measuring surface elevation tables (SETs) installed at several locations at the field site. The field crew: Arielle, Maddee, Brian,…

We conducted tidal creek import and export measurements in mid October on the four sites we’ve been working on during 2016.  Daylight is in somewhat shorter supply this time of year, though the tides still take about 12 hours.  So we had to get out to the sites while it was still dark, work through…