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April 2020 Calendar

GCE-Exec Videoconference
date: 04/08/2020
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Disturbance VTC
date: 04/09/2020
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Predex Meeting
date: 04/17/2020
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Flux Tower VTC
date: 04/21/2020
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Remote Sensing Meeting
date: 04/28/2020
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(View all 6 upcoming events for April 2020)

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New or Updated Publications

03/12/2020 –
Zhang, Y., Li, B., Wu, J. and Pennings, S.C. 2020. Contrasting latitudinal clines of nematode diversity in Spartina alterniflora salt marshes between native and introduced ranges. Diversity and Distributions. (DOI: 10.1111/ddi.13054)
02/28/2020 –
Crotty, S.M. 2019. Drivers and consequences of ribbed mussel spatial patterning in southeastern US salt marshes. Ph.D. Dissertation. University of Florida. 1-6 pages.
02/28/2020 –
Vedogbeton, H. and Johnston, R.J. 2020. Commodity Consistent Meta‑Analysis of Wetland Values: An Illustration for Coastal Marsh Habitat. Environmental and Resource Economics. (DOI: https://doi.org/10.1007/s10640-020-00409-0)

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Latest Data Releases

06/14/2019 – Data Release

Provisional SALTEx well logger monitoring data are available on the Project Data page through February 2019. The Schlumberger logger files were corrected for atmospheric pressure and sensor elevation for calculation of water level, and salinity and density were calculated from temperature and conductivity measurements.

04/26/2019 – Data Release

Two data sets investigating the effects of elevation on surface soil temperature gradients within salt marshes was added to the GCE Data catalog by Merrly Alber and Jessica O'Connell.

MSH-GCE0-1904: Variation in Landsat 8-estimated land surface temperature with elevation from Spartina alterniflora marsh cross sections in the Georgia Coastal Ecosystems Long Term Ecological Research (GCE-LTER) site and Virginia Coast Reserve (VCR) LTER sites for winter and summer observations spanning 2013-2018

MSH-GCED-1904: Continuous soil temperature measurements at 10 cm depth from 3 month-long deployments in summer and winter within the Georgia Coastal Ecosystems Long Term Ecological Research (GCE-LTER) site in 2017 and 2018

 

11/20/2018 – Data Release

Provisional SALTEx well logger monitoring data are available on the Project Data page through September 2018. The Schlumberger logger files were corrected for atmospheric pressure and sensor elevation for calculation of water level, and salinity and density were calculated from temperature and conductivity measurements.

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Latest File Uploads

01/31/2020 – Document
RAPID Bankside Vegetation Protocol (details)

01/31/2020 – Document
RAPID porewater sampling protocol (details)

01/30/2020 – Spreadsheet (GCE only)
Maintenance log for the GCE Flux Tower (details)

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GCE Project Announcements

03/21/2020 – Publication News

This is a difficult time, you're social distancing, maybe working from home, and the kids are driving you nuts. What you need is to get a copy of the adventures of Jacob the technician. You can order hard copies from Steve (spennings@uh.edu) or go to Amazon and download the kindle version at https://www.amazon.com/dp/B08672S95H/ref=sr_1_2?dchild=1&keywords=the+adventures+of+jacob+the+technician&qid=1584820941&s=books&sr=1-2 

(keep reading)

(contact Steve Pennings for additional information)
03/12/2020 – Monitoring Program

After a month of extremely high flows in the Altamaha River (see article), freshwater is now starting to pool up in the sounds near Sapelo Island. The tidal salinity range at the Hudson Creek ferry dock is now 4 PSU at low tide and only 20 PSU at high tide, and similar low tide salinities are also being recorded by the SINERR Lower Duplin sonde on the Marsh Landing dock. Low tide salinity was 15 PSU just a week ago. These are the lowest salinity values measured at Hudson Creek since October 2005 (see long-term plot).

(keep reading)

(contact Wade Sheldon for additional information)
02/29/2020 – Monitoring Program

As reported last week (see article), the Altamaha River flow has been ramping up during February following heavy rains across north Georgia. Discharge is currently over 2700 m^3/sec and continuing to rise, matching the highest freshwater flows into the coastal zone since the GCE program began in 2000. Similar peak discharges have only occurred in 2005, 2009 and 2016 (see long-term daily plot).

(keep reading)

(contact Wade Sheldon for additional information)
02/18/2020 – Monitoring Program

The flooding rains that have been impacting much of north Georgia over the past two months have reached the coast. Discharge at the Altamaha River Doctortown gauge has jumped from 150 to over 2000 m^3/sec, and is still rising rapidly. The current river flow is the highest recorded since 2016, and may signal the beginning of a major freshwater intrusion event into the coastal zone.

(keep reading)

(contact Wade Sheldon for additional information)
02/17/2020 – Monitoring Program

The SINERR Marsh Landing meteorological station near the landing parking lot suffered a GPS failure on 12/3/2019, disrupting satellite communications, but the equipment has now been replaced and upgraded. Near-real-time data telemetry resumed on 2/14/2020, and data sets and plots in the GCE Data Portal and plots on the Current Conditions page are once again being updated every 30 minutes.

Most of the data collected during the outage have already helpfully been provided by SINERR, and we will incorporate the missing data from early February when the monthly data sets are reviewed at the end of the month.

(contact Wade Sheldon for additional information)
02/13/2020 – IM News

As Steve Pennings recently described (see article), the GCE now routinely flies drones over our study area to map vegetation and disturbance. Jacob Shalack has been processing the drone imagery at Sapelo using Pix4D software to create ortho-mosaics for analysis, but getting those bulky data sets to UGA for broader access has been a bottleneck in the process until now.

(keep reading)

(contact Wade Sheldon for additional information)

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This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959, OCE-1237140 and OCE-1832178. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.