News
June
8-10, 2011. Three presentations were made (VerHoef, Welty,
McGuire) at the USGS-CUAHSI workshop on optical sensor networks http://www.cuahsi.org/ws-usgs.html
May
1-5, 2011. Three presentations were made (Bhaskar, Cui, VerHoef)
at the NGWA Groundwater Summit in Baltimore on sensor and modeling work.
March 24, 2011 - We have released a technical report summarizing our experiences with the sensors from the Fall 2010 deployment.
March 8, 2011 - We have begun to redeploy the sensors, now that the danger of a major freeze has passed.
December 7-8, 2010 - All sensors were brought in for the winter, owing to freezing temperatures.
October
27-28, 2010 - 6 papers were presented at the 2010 Annual meeting of the
Baltimore Ecosystem Study LTER on various aspects of ongoing work here.
October 20, 2010 - Trenching at DR4 was carried out in preparation for sensor deployment there.
October 10,
2010 - Support for USGS to provide Satlink transmission of the DR
stream gages has ended; Satlinks have been replaced with Ravens, with
support provided by NSF and NOAA through UMBC.
October 8, 2010 - Data are streaming into the TRC from the sensors at DR Franklintown.
October 6, 2010 - Deployment of SUNA and YSI sensors was completed at DR Franklintown.
September 30, 2010 - Roxanne Sanderson completed the web services for the BES rain gage system.
September 17, 2010 - UMBC and collaborators received a WSC Category 2 award from NSF.
August
30, 2010 - Jason VerHoef, BSME, joined the team as a graduate student
in Civil and Environmental Engineering. He will be working on the
SUNA sensor project.
July 31, 2010 - Lab testing of the nitrate and YSI sensors including the pumping and wiring systems was completed.
July 8, 2010 - Julia has a rain gage raven deployed and streaming data to the TRC.
July 6, 2010 - Julia Miller joined the CUERE team as Phil's replacement.
May 28, 2010 - Phil Larson's last day at CUERE. He will be missed.
March 2, 2010 - Melissa Grese joined the CUERE team to help with laboratory testing.
February
25, 2010 - Lab testing of the SUNA nitrate sensor is now underway.
February
12, 2009 - Robert Burns from Satlantic (manufacturer of the SUNA) was
slated to visit, but this was postponed owing to snow.
February 1, 2009 - Six YSI 600LS Level Sonde conductivity sensors were ordered.
December
15, 2009 - Aditi Bhaskar, Garth Lindner, Andy Miller, and Claire Welty
attended fall AGU and presented posters and papers. Abstract
titles are posted on our publications page.
November 9, 2009 - A technical memo on our experience with the Odessy capacitance probes has been posted on our publications page.
September 30, 2009 - Our first SUNA nitrate sensor was received and is ready for lab testing.
September
1, 2009 - UMBC freshman Roxanne Sanderson joined our team as an
Undergraduate Research Assistant. She will be helping out with
raingage calibration and GIS/database work.
August 29, 2009 - Two manuscripts from the 2007-2008 tracer tests was submitted for publication.
August 21, 2009 - Our eddy covariance data can be viwed online at the following loink put together by Mike McGuire: http://his09.umbc.edu/EddyViz/ECMap.html
August 9, 2009 - A manuscript from the 2007-2008 geophysical work was submitted for publication.
August
1, 2009 - We have received a testbed renewal award from NSF to deploy
nitrate sensors in nested watershed scenarios to obtain high-frequency
nitrate data. The data will be used in mass balance calculcations
and predictive modeling.
July 31, 2009 - Farewell to Chrissy Runyan who will be moving to UVa to start her PhD. She will be missed!
June
17, 2009 - We discovered that a Mud Dauber Wasp nest built inside the
horn antenna of the Red Run radar stage recorder caused the gauge
to fail during one of the largest peak discharges since the gauge was
installed. The stage at the downstream GF McDonogh streamgauge,
which responds similarly to Red Run, peaked at 7 feet. Photos
show (1) looking up at the horn antenna while the radar sensor is still mounted in the enclosure; (2) horn removed from its enclosure, and (3) the contents of the nest - a pile of spiders that the wasp sedated and then encapsulated in its mud tube to serve as food for its larvae.
June 5, 2009 - Sarah Poole and Peter Lapa-Lilly, UMBC
undergraduates supported by an NSF REU supplement on this project,
graduated with their BS degrees in environmental science on May 21.
Links to their completed REU project reports can be found on our
publications page.
May 29,
2009 - Two posters were presented at the spring 2009 AGU meeting
related to project goals. This work has been supported by our CNH
grant:
"Challenges in Urban Hydrologic Modeling: A Baltimore Case Study" by A. Bhaskar, C. Welty, and R. Maxwell
"Interactions Between Flow Patterns and Infrastructure in an Urban Stream" by G. Lindner and AJ Miller
April 20, 2009 - Documentation of our soil moisture setup can be can be found here.
December
20, 2008 - Our suite of soil moisture and heat flux measurement
equipment has been tested in the lab and now is deployed in the soil
behind the
TRC in the testing mode.
December 15, 2008 - The UMBC/CUERE visualization
lab was completed in mid-December.
December 10, 2008 - Two posters were presented at the fall 2008 AGU
meeting related to test-bed activities:
"An
Assessment of the use of the Temporal Microgravity Technique to
Estimate the Change in Aquifer Storage Across the Gwynns Falls
Watershed" by N.
Crook, C. Welty, R. Knight, M. McGuire
"Surface-Subsurface
Exchange and Transient Storage in Relation to Riparian Corridor Land
Cover in an Urban Watershed" by R.
Ryan, C. Welty, P. Larson, C. Runyan. S. Poole, P. Lapa-Lillu, A. Miller
December 4, 2008 - A poster presentation related
to test-bed activitieswas
made at the 14th Annual Meeting of the Maryland
Water Monitoring Council: "Subsurface Characterization of an
Urban Watershed at Multiple Spatial Scales" by C.
Welty, P. Larson, C. Runyan, M. McGuire, R. Ryan, N. Crook, A. Bhaskar,
A. Miller, J. Dillow, E. Doheny, D. Soeder, K. Belt.
November 26, 2008 - OTIS modeling has been completed by Rob Ryan and we
are putting together a presentation for AGU.
November 24, 2008 - We have a confirmed date of December 2 for
installation of LCD screens in our visualization lab.
November 17, 2008 - Our eddy covariance station is now properly
streaming data to our server via the RS 232-to-ethernet connector and
we will soon be able to serve temporal data in real-time.
November 10, 2008 - Today we learned from NOAA that years 2 and 3 funds
for this grant would not be forthcoming owing to agency lack of funds.
Therefore the planned well drilling has been cancelled. UMBC has
rebudgeted some unspent year 1 equipment funds to keep the real-time
telemetry going for the USGS stream gages and precipitation gages for
about another year. USGS is also committing additional resources to
keep the new telemetry going until a more permanent source of funds can
be identified. Arrangements are being made for servicing the gages and
keeping the QA/QC going.
November 3, 2008 - The bird spikes have been attached to the eddy
covariance equipment and seem to be working.
October
15-16, 2008 - Sarah Poole and Peter Lapa-Lilly presented the results of
their summer 2008 work (supported by a NSF REU supplement) at the
annual science meeting of the Baltimore Ecosystem Study. Phil
Larson and Chrissy Runyan also presented a poster on their recent
experiences with capacitance probes deployed in riparian zone
piezometers in Dead Run. Meeting abstracts can be found here.
October 14, 2008 - Birds have decided that our new eddy covariance
equipment makes a splendid roosting place. (See photo1, photo2).
As much as we love birds, their droppings are getting all over the
sonic anaemometer, the Li-Cor open path analyzer, and the net
radiometer. We have identified a source of stainless steel bird spikes
at Bird-X.com
and have ordered 10 ft. we intend to attach the spikes to the equipment
to deter birds from roosting there.
October 13, 2008 - A model of Parflow with the overland flow option for
the Dead Run subwatershed is now running. Aditi Bhaskar, new IGERT
fellow and also on our biocomplexity project has gotten this up and
running in two months. Now that testing is nearly done, we are about
ready to start incorporating field data. Reed Maxwell has provided
continued help through our NOAA project.
October 10, 2008 - The eddy covariance equipment, currently deployed on
the top of the UMBC physics building, is now streaming data. We need a
RS232-to-ethernet converter to stream it to our server reserved for
this purpose. The memory built into the CS data logger will hold only a
few hours worth of data. We have also requested the interface graphing
program from Mary Lynn Baeck developed at Princeton so as to avoid
duplicating this effort. We plan on streaming this data to our new
IGERT visualization lab. One problem we are having with the deployment
is the attraction of wasps to the equipment.
Photos of the installation can be viewed here: View from roof of
the Physics Building; Chrissy Runyan,
Jeff Campbell, and Chris, data logger and cable housing,
Jeff, equipment installed on
Physics tower.
October 6, 2008 - Our Hydro-Nexrad jobs for 2006 and 2007 (Nexrad data
bias-corrected data for the Gunpowder-Patapsco) have been completed and
are ready for download. The data contains 32,000 records because of
course there are many dry days. Mike McGuire will load this to our
server and then a revised data set to the ODM, where it will be
available to use in our MODFLOW and Parflow modeling efforts.
October 1, 2008 - We have obtained a set of soil moisture sensors to
first test in the lab and then to deploy in a test plot behind the TRC.
The suites of instrumentation will be co-located with the wells to be
drilled. We were successful in renting a data logger from the USGS HIF
under our cooperative agreement with the USGS MD-DE-DC Water Science
Center and CUAHSI to be used in testing.
September 30, 2008 - All BES raingages have been replaced by real-time,
dual tipping buckets. We await the url addresses from USGS. A QA/QC
protocol will be agreed upon, and UMBC will maintain the data but it
will be stored in the USGS data base.
September
15, 2008 - A testbed "renewal" proposal was submitted to NSF that
focuses on deploymeny of nitrate sensors in the Gwynns Falls watershed.
This effort would complement the ongoing weekly (manual) data
collection.
September 26, 2008 - In order to test one of the hypotheses we had
about the poor performance of the capacitance probes in the urban
environment, Stu, Chrissy and Phil re-calibrated the capacitance probes
in the field using two different methods. One method was the pictured
bucket method in the Odyssey handbook and the other was the described
pvc pipe calibration method also in the Odyssey handbook. The pipe
method resulted in greater errors when applied to the raw data Odyssey
files, compared to the bucket method. A Hobo Water Temp Pro was
deployed at Transect 10 so the effect of diurnal temperature on the
performance of the capacitance probe could be investigated.
October 8, 2008 - Meeting with USGS to go over well drilling plans.
Awaiting permission from schools. Drilling bids are due October 10th.
October 1, 2008 - We are being told by Campbell Scientific that we need
to either purchase a $6000 piece of equipment to use to calibrate the
eddy covariance station, or alterntively send our equipment to Campbell
for calibration several times per year at the cost of several hundred
dollars per calibration.
September 22, 2008 -The winch cable for the tower was secured with the
crimper. Next, the tower was raised at its location behind Tech 2. Phil
purchased a Kricket belt tension tester to ensure that 100 pounds of
tension were applied to each guy.
September 22, 2008 - Meeting with USGS at UMBC to discuss well drilling
plans.
September 19, 2008 - Abstracts submitted to the BES annual science
meeting.
September 19, 2008 - To secure the winch cable on the portable tower, a
"crimper"
is required. Borrowed one from the UMBC theater department. (They work
with cables
on stage sets ...)
September 18, 2008. Meeting at USGS to get update on well drilling
plans. New USGS employee Brandon Fleming has experience using a
heat-pulse flowmeter and we are now talking about logging all drilled
wells with this equipment to obtain vertical distributions of hydraulic
conductivity.
September 18, 2008 - Dual tipping bucket raingage, solar panel, and
antenna installed in TRC parking lot to replace the first of the BES
raingage stations.
September 10, 2008 - Abstracts submitted to AGU on (1) tracer test
work, and (2) microgravity survey.
September 6, 2008 - Our eddy covariance station was successfully
deployed on the roof of the Physics building at UMBC, in order to
conduct preliminary testing while our portable tower awaits repair.
September 5, 2008 - IC analysis of the bromide
samples is now complete, after keeping the machine running almost
nonstop for two months. Rob Ryan has been doing OTIS modeling as
station sites have been processed.
August 22, 2008 - Meeting at USGS to discuss progress on contracting
for local well driller.
August 20, 2008 - Two of our calibrated tipping bucket raingages were
installed at DR5, co-located at the stream gage. The data link
August 4, 2008 - While doing a test raise of the
Alunma portable tower, the winch cable snapped. Upon investigation it
turned out that the company supplied us with conflicting sets of
instructions; following the incorrect instructions led to the cable
snap. Fortunately, no one was hurt in the process and the company is
willing to pay for the repair.
July 30 - Andy Miller worked with Chrissy and Phil to obtain total
station survey data of Dead Run that Rob will use in his modeling HEC-
July 26-30, 2008 - Chrissy attended the
Hydropedology meeting at Penn State on behalf of the project team and
presented a poster.
July 23, 2008 - Scouting for additional well drilling sites.
July 22, 2008 - The Erickson Construction company has graciously
allowed us to use their on-site trailer office as an electricity source
and deployment point for testing our portable tower on which we will
deploy the eddy covariance equipment. They also offered to construct a
fence around the base of the tower to deter vandalism.
July 18, 2008 - Meeting with USGS to discuss parameters of well
drilling contract for the fall. We are now seeking local drillers in
order to expedite the deployment to occur by late fall.
July 16 - 18, 2008 - Phil attended the HMF wireless sensor workshop
that followed the CUAHSI science meeting.
July 14 - 16, 2008 - Claire and Phil attended the first biennial CUAHSI
science meeting in Boulder.
July 14, 2008 - Pascaline Cette and Tracy Kerchkof digitized an old MGS
report that contains spatially-distributed specific capacity data.
July 14, 2008 - Borehole/coring data arrived from the State Highway
Department.
July 1 - Sarah and Peter have started on summer projects of measuring
soil infiltration and streambed conductance across the watershed, to
use as input to Tracy's MODFLOW model.
June 18, 2008 - The Alumna tower was delivered to UMBC's warehouse.
June 16, 2008 - Filtration of the 1400 tracer test samples was
completed. Analysis on the IC is proceeding.
June 5, 2008 - We met with USGS collaborators to go over progress to
date and next steps on deployments funded by our NOAA grant. We will
next be replacing the BES raingages with dual research-grade raingages;
data will be telemetered to the GOES satellite and served on the web.
June 2, 2098 - The first data from In-Situ loggers deployed at our
"adopted" wells have been downloaded and will be posted to the HIS
site. The logged data appear to have drifted (they differ from measured
values at download by 0.1 - 0.2 ft.) We are checking with USGS on what
to do to correct the data.
May 31, 2008 - The spring tracer test was successfully completed. The
ISCOs needed to be pulled out a bit earlier owing to thunderstorms.
May 30, 2008 - A new USGS stream gage has been installed on Maiden
Choice Run. Data can be viewed in real time at http://waterdata.usgs.gov/md/nwis/uv/?site_no=01589351
May 29, 2008 - Jim Gerhart (USGS), Jon Dillow (USGS) and Claire Welty
went scouting for locations for USGS well drilling to be carried out in
fall 2008, supported by NOAA. Sites were chosen in Dead Run and Delight
subwatersheds.
May 29, 2008 - An anthropogenic perturbation to the
tracer test occurred when personnel from a pool service started to
empty a residential swimming pool into DR5. Rob was able to talk them
into stopping and we caught the flow anomaly on the DR5 stream gage.
May 28, 2008 - After a small sprinkle in the night, the second tracer
(upstream) injection began in the DR5 branch of Dead Run (Winters
Lane). Injection was delayed by a couple of hours in order to ensure
that conditions were back down to base flow.
May 22, 2008 - The first injection of the spring tracer test began at
the Fox Auto site on DR4 branch without incident.
May 22, 2008 - The T-175 telescoping aluminum tower
was ordered from Aluma Tower Company Inc. Shipping time is
approximately 1 month.
May 20, 2008 - Rob Ryan is in residence now at UMBC to orchestrate the
spring tracer test in Dead Run.
May 16, 2008. All preparations are completed for the spring tracer
test, which is scheduled for 5/22 - 6/1. The spring well synoptic is
nearly complete. There are now approximately 100 wells in our data base.
May 15, 2008 - A new USGS gage has been installed on the Gwynns Falls
above Horsehead Run. Data can be viewed in real time at http://waterdata.usgs.gov/md/nwis/uv/?site_no=01589240.
May 6, 2008 - A new USGS gage gas been installed at Red Run. Data can
be viewed in real time at http://waterdata.usgs.gov/md/nwis/uv/?site_no=01589230.
Note that this site employs radar technology, which is described at http://www.waterlog.com/products/H3611/H-3611.html.
May 1, 2008 - A fiinal water-level synoptic of homeowner wells and
seepage transects covering the entire Gwynns Falls were started today.
These data will be used as calibration targets in Tracy's MODFLOW
groundwater model for high-water levels, compared to dry conditions
last fall.
May 1, 2008 - For the eddy covariance system deployment, Todd Scanlon
suggests purchasing a portable telescoping tower, attaching it to the
side of a building, and standing on the building to do the instrument
attachment, then raising up the tower. We are looking into purchasing
this system from Aluma Tower Company Inc. http://www.alumatower.com
April 23, 2008 - We have made contact with William Adzimahe, Division
Chief
Field Explorations Division, Maryland State Highway Administration to
obtain boring logs from all state roads in the metropolitan region.
These data will enable us to better define the third dimension of our
subsurface domain, to define the spatially variable saprolite thickness.
April 22, 2008 - The USGS gage at DR1 is now public http://waterdata.usgs.gov/md/nwis/uv?site_no=01589317.
April 20, 2008 - The new eddy covariance systemhas been assembled, data
loggers are programmed, and the system is ready for field testing. The
original site chosen in Dead Run for field deployment - a radio tower
at Dead Run fire station - is now somewhat problematic because we need
a $2200 ride to get up the tower by a private lift company, and the
fire station wants to carge us $2200 for burying the electric cable
that would be plugged into the station. Onward to a new solution on
this one.
April 11, 2008 - IC analysis of summer tracer test is finally completed
and preparations for spring (high-flow) test have been started. A
spring tracer test is planned beginning May 22.
April 4, 2008 - In-Situ Troll 700s have been installed in 6 cooperating
homeowner (non-pumped) wells and one USGS well. We are "adopting" wells
no longer in use by homeowners who have switched to public water.
March 31, 2008 - Final scouting for wells for spring synoptic began.
March 31, 2008 -All USGS streamgages in the Gwynns Falls/BES sites are
now real-time.
March 3, 2008 - Our new Campbell Scientific eddy covariance station
arrived in boxes!
March 3, 2008 - Welcome Chrissy Runyan, new full-time RA/tech to work
with Phil on getting all of our instrumentation deployed. Chrissy is
finishing up a MS in Environmental Science and Policy at JHU this
spring. Her BS degree is from U. Wyoming, where she was on the women's
rodeo team. Having also experience as a ranch hand, Chrissy is a
wonderful addition to our bionic field team.
February 14, 2008. USGS streamgages have now been installed at DR2,
DR3, DR4, and DR5. Links to the gages are provided here:
http://waterdata.usgs.gov/md/nwis/uv/?site_no=01589316
(DR2)
http://waterdata.usgs.gov/md/nwis/uv/?site_no=01589320
(DR3)
http://waterdata.usgs.gov/md/nwis/uv/?site_no=01589315
(DR4)
http://waterdata.usgs.gov/md/nwis/uv/?site_no=01589312
(DR5)
February 4 - 8, 2008 - Nigel Crook was in residence to carry out the
second microgravity survey.
February 2, 2008 - The first bromide IC data (collected by Phil Larson)
was delivered to Rob Ryan for analysis.
January 29, 2008 - Tracy Kerchkof got a first run of her MODFLOW model
of the Gwynns Falls, that is being used as the major anaytical tool in
this project.
January 24, 2008 - A new eddy covariance station was ordered under our
NOAA project that can also be used in this study.
January 22, 2008 - We visited the Maryland Geological Survey to review additional information in their data bases as may complement our other sources of well data.
January 21, 2008 - After many false starts, the IC
is up and running and the August 2007 tracer test samples are being
analyzed.
January 15, 2008 - Six homeowners whom are no longer using their wells
have given us permission to place water level recorders in these wells.
We will likely order the In-Situ Level 500 TROLLs for this purpose,
since USGS has had positive experience with this equipment. In addition
to the six homeowner wells, we will place water level recorders in two
USGS wells.
December 31, 2007 - USGS stream gages have been installed at DR4 and
DR5. A link to the DR4 gage is provided here: http://waterdata.usgs.gov/md/nwis/uv?site_no=01589315.
December 10, 2007 - A project poster was presented at Fall AGU meeting.
December 6, 2007 - Project poster presented at the annual conference of
the Maryland Water Monitoring Council.
October - December, 2007 - Tipping-bucket raingages
(Qualimetrics) were calibrated dynamically in the laboratory at UMBC
using the U. Iowa TipCal procedure, by Sarah Poole and Peter
Lapa-Lilly. These will be deployed in pairs to augment the exisiting
BES raingage network and other regional Baltimore networks.
Coordination with Baltimore City and Baltimore County is being pursued
to assess feasibility of tying together all regional precipitation
networks.
November 27, 2007 - Met with USGS to discuss precipitation gage network
design.
November 8, 2007 - Met with Baltimore County DEPRM Director and Dept
Heads to discuss coordinating with project.
October 15, 2007 - Water levels representing the dry
season were measured during the week of October 15, 2007. Details can
be found here.
October 4, 2007 - A stream base-flow synoptic was conducted during the month of October of the entire Gwynns Falls to coincide with the well synoptic.
August 15 - October 15, 2007 - Phil Larson and
Betsy Marchand continued scouting for wells. A total of 80 wells was
available by October for the fall snoptic.
September - December 2007 - Sediment samples from tracer test were
processed by Peter Lilly and Sarah Poole.
September, 2007 - All 1400 tracer test samples were
sorted and filtered by undergraduate research assistants Dan Hoff,
Sarah Poole, and Peter Lapa-Lilly.
August 2007 -Mike McGuire successfully implemented the CUAHSI HIS DASH
software to serve Baltimore WTB data. A link to the web site is
provided here.
August
1 - 9, 2007 - An extensive 4-km tracer test was designed, coordinated,
and carried out by Rob Ryan under low flow conditions. Details of the
tracer test can be found here.
The
test will be repeated in May 2008 under higher-flow conditions.
August 1, 2007 - Annual report submitted to NSF.
July 31, 2007 - 2005 and 2006 NEXRAD reflectivity
data Sterling, Virginia WSR-88D radar have successfully been
incorporated into U. Iowa's beta HydroNEXRAD system, providing
archived, bias-corrected 1 km^2 pixel coverage of precipitation fields
of the Baltimore area. This NSF-supported effort is being led by Witek
Krajewski at the University of Iowa, in collaboration with Jim Smith
and Mary Baeck of our team, among others.
July 31, 2007 - Marathon labelling of 1400 bottles for the tracer test
carried out by CUERE staff at lunchtime.
July 19 - 31, 2007 - Completion of preparations for tracer test -
checked supply orders; readied ISCO samplers.
July 18 - 25, 2007 - Phil Larson worked on further well scouting.
July 2, 2007 - We learned that an application to the NOAA BAA program
to build onto our NSF testbed project had been approved for funding.
This three-year project will enable us to telemeter our gaging network,
and install a network of bedrock wells, tensiometers and soil moisture
probes, as well as an eddy covariance system.
July 2-18, 2007 - Nigel Crook from Stanford
University and CUAHSI HMF was in residence to carry out selected
geophysical surveys. Details can be found here.
June 25 - 29, 2007 - Riparian zone piezometers (approx 2 m
deep) installed on the banks of 7 locations from Franklintown to the
headwaters of DR5 (locations 1, 7, 8, 9, 10, 16, 20).
June 20, 2007 - Permission received from Miss Utility for piezometer
installations.
June 18, 2007 - Permission filed with Miss Utility for piezometer
installations.
June 15, 2007 - Phil Larson joined the project as a full-time
Hydrologic Science Technician/Research Assistant. Phil just graduated
from U. Wisconsin Stevens Point with a BS in Water Resources. He much
field experience and a a perfect fit for this position.
June 11, 2007 - Meeting with Baltimore City DPW personnel to discuss
coordination with project.
June 11 and 13, 2007 - Stream walk from DR Franklintown to DR 5
headwaters to scout for geophysics transect and riparian piezometer
locations approximately every 400 m (20 locations noted).
June 4, 2007 - Tracy Kerchkof joined UMBC as an IGERT Fellow and PhD
student in Civil and Environmental Engineering. She is interested in
participating in the Test Bed project as part of her graduate studies.
May 15 and May 30, 31 - Rob Ryan was in residence to carry out
preliminary dye tests to estimate travel times in Dead Run.
April 9 - 13, 2007 - Spring well water level synoptic carried out by
USGS (32 wells).
April
3 - 7, 2007 - Nigel Crook visited to carry out reconnaissance in
preparation for summer geophysical field work. Nigel informs team that
riparian zone piezometers are needed for ground-truthing the
riparian-zone geophysics transects.
March 13, 2007 - Thermal infrared aerial images using a FLIR camera
were taken of the Gwynns Falls in an effort to help identify locations
of groundwater inputs. This effort was coordinated by Juying Warner.
March 8, 2007 - Todd Scanlon visited to scout for
locations for eddy covariance equipment.
March 5 and 8, 2007 - Rob Ryan visited to carry out reconnaissance in
preparation for summer tracer tests.
March 5, 2007 - USGS well scouting commenced.
February 28, 2007 - Well atlas and data compilation completed.
February 4, 2007 - 18 Hobo thermal sensors were placed throughout the
main stem of the Gwynns Falls for ground truthing of the planned FLIR
flyover.
November 21, 2006 - Meeting w/Juying Warner at USGS to discuss IR
flyover; meeting with Doug Yeskis to review well data base information.
November 10, 2006 - Meeting with Doug Yeskis (USGS) at UMBC to discuss
planning well synoptic.
October 27, 2006 - Meeting with Juying Warner to discuss IR flyover.
