BEGIN:VCALENDAR VERSION:2.0 METHOD:PUBLISH PRODID:-//Tendenci - The Open Source AMS for Associations//Tendenci Codeba se MIMEDIR//EN BEGIN:VEVENT DESCRIPTION:--- This iCal file does *NOT* confirm registration.\r\nEvent d etails subject to change. ---\r\nhttps://www.grac.org/events/90/\r\n\r\nEv ent Title: Sacramento Branch Meeting - Potential of Using Agricultural Fie lds for Groundwater Recharge\r\nStart Date / Time: Mar 08, 2017 17:30 PM U S/Pacific\r\nLocation: Aviators Restaurant\r\nGoogle\r\nhttp://maps.google .com/maps?q=6151+Freeport+Blvd,Sacramento,California,95822\r\n\r\nForecast \nhttp://www.weather.com/weather/monthly/95822\r\n\r\n\r\nThe Sacramento B ranch is pleased to present:\r\n \r\n"Potential of Using Agricultural Fiel ds for Groundwater Recharge: Soil Water Balance, Crop Suitability and Surf ace Water Availability"\r\n Presented By:\r\nHelen E. Dahlke, Ph.D. Integr ated Hydrologic Sciences\r\nDepartment of Land, Air and Water Resources, U niversity of California, Davis\r\n \r\nPRESENTATION:\r\nOn-farm recharge ( agricultural groundwater banking) is a promising form of managed aquifer r echarge where agricultural land is flooded during the winter using surface water to recharge the underlying groundwater. Flooding agricultural fiel ds while the crop is dormant in winter or during fallow periods provides v ast land areas connected to irrigation infrastructure that could allow cap turing substantial amounts of surface water during wet periods. However, l ittle is known about how much water can be recharged on fields planted wit h perennial crops like alfalfa or almonds without causing crop injury. The study presented here considers experiments conducted in the Central Valle y and the Scott Valley, Siskiyou County between 2014-2016 to test the effe ct of different winter water application amounts (totals of 2-26 ft) and t imings (January through April) on the water balance and crop health of est ablished alfalfa stands and mature almond orchards. Using a water balance model and field observed soil moisture data we estimated that the majority of the applied water (>\;90%) went to deep percolation within less than 48 hours after the winter water application ceased. Further, yield measur ements from the two alfalfa fields and two almond orchards indicate no sig nificant yields loss for both crops. In addition, statistical analysis of daily streamflow records from 93 gauges within the Central Valley, CA reve al that high-magnitude (>\;90thpercentile) flows provide on average 1.6 and 1 million acre-feet in the Sacramento and San Joaquin River basin for ag-recharge. Together these results highlight the opportunity and potentia l benefits for growers and water districts to implement on-farm recharge a s part of their sustainable groundwater management plans. \r\n \r\nSPEAKER BIO: \r\nHelen E. Dahlke, Ph.D., is an assistant professor in Integrated Hydrologic Sciences at the Department of Land, Air and Water Resources at the University of California. Her research focuses on contributing to a be tter mechanistic understanding of hydrological processes and their links t o climate and biogeochemical cycling. She has extensive experience researc hing a wide range of hydrological processes in the field including the tra nsport of various constituents (phosphorus, carbon, nitrate) and conservat ive tracers. She received her B.S. and M.S. in Geography from the Friedric h-Schiller University of Jena, Germany and her Ph.D. in 2011 in Environmen tal Engineering from Cornell University with emphasis on soil and water en gineering, water resources and environmental geophysics. Before coming to UC Davis in 2013 Dr. Dahlke was a postdoctoral research associate at the D epartment of Physical Geography at Stockholm University, Sweden where she studied climate change impacts on subarctic hydrologic systems and glacier s in the Scandinavian Mountains. Dr. Dahlke&rsquo\;s current research inte rests include surface water &ndash\; groundwater interaction, water resour ces management, vadose zone transport processes, hydrologic response funct ions and transit time. On-going projects include testing a new type of env ironmental tracer consisting of synthetic DNA strands encapsulated by poly mer microspheres for flow path characterization in porous media and explor ing the feasibility of using agricultural fields as recharge sites for gro undwater banking. She has given over 30 presentations and interviews on ag -recharge opportunities in California over the past 2 years.\r\n \r\nANNOU NCING SCHOLASTIC SPONSORSHIP OPPORTUNITIES:\r\nAll Proceeds to Benefit Sci ence Students\r\nThe GRA Sacramento Branch has a history of supporting uni versity-level science students. Our Scholastic Sponsorship Program is an opportunity to publicize your business while contributing toward a good ca use. The cost is minimal\; if interested, please contact Linda Bond at 91 6-651-9224 or 530-757-1500 or Linda.Bond@water.ca.gov. \r\n \r\nTHIS MONTH 'S SPONSOR:\r\nGeocon Consultants, Inc. is a California based multi-discip lined engineering firm specializing in environmental engineering and contr acting, geotechnical engineering, engineering geology, materials testing, and special inspection services for State agencies, municipalities, and pr ivate entities. With over 200 professionals and support staff housed in n ine strategically located offices throughout California, Geocon can easily meet the needs of our clients.\r\n \r\nAGENDA: Social Hour 5:30-6:30 p. m.Announcements &\; Dinner 6:30-7:30 pmPresentation 7:30-8:30 pmUsual g reat food, including two meat entré\;es, salad, rice, potatoes, vege table and Iced Tea. A No-host beer and wine bar will be available.MEETING COSTS:Members: $27.00Non-Members: $32.00Students: $10.00\r\n \r\nQuestions about the meeting or to contact the Sacramento Branch in general, includi ng submittal of your ideas and/or desires for future presentations, please telephone Rodney Fricke at 916-407-8539 or email him at rodneyafricke@gma il.com\r\nUPCOMING MEETINGS &\; EVENTS:April 17th (Monday): Dr. Rosemar y Knight with Stanford UniversityGeophysical Methods for Groundwater Evalu ation and Management, Meeting Location: CSUS Alumni CenterMay 10th: Rick C ramer with Burns &\; McDonnellGeology-Focused Conceptual Models: Apply ing Sequence Stratigraphy to Environmental and Groundwater Production Proj ectsIf you RSVP after Noon on Monday, March 6th, or walk-in, a $3.00 surch arge will be added to the meeting costs. Cancellations must be made by Noo n on Monday, March 6th.--- This iCal file does *NOT* confirm registration. Event details subject to change. ---\r\n\r\n--- By Tendenci - The Open Sou rce AMS for Associations ---\r\n UID:uid90@grac.org SUMMARY:Sacramento Branch Meeting - Potential of Using Agricultural Fields for Groundwater Recharge DTSTART:20170309T013000Z DTEND:20170309T043000Z CLASS:PUBLIC PRIORITY:5 DTSTAMP:20240329T135331Z TRANSP:OPAQUE SEQUENCE:0 LOCATION:Aviators Restaurant X-ALT-DESC;FMTTYPE=text/html:
 \;
"Potential of Using Agricultural Fields for Groundwater Rechar ge: Soil Water Balance, Crop Suitability and Surface Water Availability" strong>
 \;
Helen
E. Dahlke, Ph.D. \;
Integrated Hydrologic Sciences<
/em>
Department of Land, Air and W ater Resources, University of California, Davis
 \;
PRESENTATION:
On-farm recharge (agricultural grou ndwater banking) is a promising form of managed aquifer recharge where agr icultural land is flooded during the winter using surface water to recharg e the underlying groundwater. \; Flooding agricultural fields while th e crop is dormant in winter or during fallow periods provides vast land ar eas connected to irrigation infrastructure that could allow capturing subs tantial amounts of surface water during wet periods. However, little is kn own about how much water can be recharged on fields planted with perennial crops like alfalfa or almonds without causing crop injury. The study pres ented here considers experiments conducted in the Central Valley and the S cott Valley, Siskiyou County between 2014-2016 to test the effect of diffe rent winter water application amounts (totals of 2-26 ft) and timings (Jan uary through April) on the water balance and crop health of established al falfa stands and mature almond orchards. Using a water balance model and f ield observed soil moisture data we estimated that the majority of the app lied water (>\;90%) went to deep percolation within less than 48 hours a fter the winter water application ceased. Further, yield measurements from the two alfalfa fields and two almond orchards indicate no significant yi elds loss for both crops. In addition, statistical analysis of daily strea mflow records from 93 gauges within the Central Valley, CA reveal that hig h-magnitude (>\;90thpercentile) flows provide on average 1.6 and 1 million acre-feet in the Sacramento and San Joaquin River basin for ag-recharge. Together these results highlight the opportunity and potentia l benefits for growers and water districts to implement on-farm recharge a s part of their sustainable groundwater management plans. \;
 \;
SPEAKER BIO: \;
Helen E. Dahlke, Ph.D strong>., is an assistant professor in Integrated Hydrologic Sciences at t he Department of Land, Air and Water Resources at the University of Califo rnia. Her research focuses on contributing to a better mechanistic underst anding of hydrological processes and their links to climate and biogeochem ical cycling. She has extensive experience researching a wide range of hyd rological processes in the field including the transport of various consti tuents (phosphorus, carbon, nitrate) and conservative tracers. She receive d her B.S. and M.S. in Geography from the Friedrich-Schiller University of Jena, Germany and her Ph.D. in 2011 in Environmental Engineering from Cor nell University with emphasis on soil and water engineering, water resourc es and environmental geophysics. Before coming to UC Davis in 2013 Dr. Dah lke was a postdoctoral research associate at the Department of Physical Ge ography at Stockholm University, Sweden where she studied climate change i mpacts on subarctic hydrologic systems and glaciers in the Scandinavian Mo untains. Dr. Dahlke&rsquo\;s current research interests include surface wa ter &ndash\; groundwater interaction, water resources management, vadose z one transport processes, hydrologic response functions and transit time. O n-going projects include testing a new type of environmental tracer consis ting of synthetic DNA strands encapsulated by polymer microspheres for flo w path characterization in porous media and exploring the feasibility of u sing agricultural fields as recharge sites for groundwater banking. She ha s given over 30 presentations and interviews on ag-recharge opportunities in California over the past 2 years.
 \;
ANNOUNC ING SCHOLASTIC SPONSORSHIP OPPORTUNITIES:
All Proceeds to Benefit Science Students
< p style="text-align: left\;">The GRA Sacramento Branch has a history of su pporting university-level science students. \; Our Scholastic Sponsors hip Program is an opportunity to publicize your business while contributin g toward a good cause. \; The cost is minimal\; if interested, please contact Linda Bond \;at 916-651-9224 or 530-757-1500 or Linda.Bond@wat er.ca.gov. \; \;
THIS MONTH'S SPONSOR:
Geocon Consultants, Inc. is a California based
multi-disciplined engineering firm specializing in environmental engineer
ing and contracting, geotechnical engineering, engineering geology, materi
als testing, and special inspection services for State agencies, municipal
ities, and private entities. \; With over 200 professionals and suppor
t staff housed in nine strategically located offices throughout California
, Geocon can easily meet the needs of our clients.
 \;
AGENDA:
Social Hour  \;5:30-6:30 p.m.
Announcements &\; Din
ner 6:30-7:30 pm
Presentation 7:30-8:30 pm
Usual great foo
d, including two meat entré\;es, salad, rice, potatoes, vegetable an
d Iced Tea. A No-host beer and wine bar will be available.
Members: $27.00
Non-Members: $32.00<
br />Students: $10.00
 \;
Questions about the meeting or to contact the Sacr amento Branch in general, including submittal of your ideas and/or desires for future presentations, please telephone Rodney Fricke at 916-407-8539 or email him at rodneyafricke@ gmail.com
UPC
OMING MEETINGS &\; EVENTS:
April 17th (Monday):&n
bsp\;Dr. Rosemary Knight with Stanford University
Geophy
sical Methods for Groundwater Evaluation and Management,
Meetin
g Location: CSUS Alumni Center
May 10th: \;Rick
Cramer with Burns &\; McDonnell
Geology-Focused Conceptual Mod
els: \; Applying Sequence Stratigraphy to Environmental and Groundwate
r Production Projects
If you RSVP
after Noon on Monday, March 6th, or walk-in, a $3.00 sur
charge will be added to the meeting costs. Cancellations
must be made by Noon on Monday, March 6th.