NWDTW 2026: Full Schedule

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8:30am CDT

Future Directions in GNSS Surveying- Intro to the New NSRS

Thursday July 23, 2026 8:30am - 9:20am CDT

In 2026 the National Geodetic Survey is releasing the North American-Pacific Geopotential Datum of 2022. This will have a wide range of implications on how we collect and disseminate spatial data. This session is an introduction to the new datum and its parts as well as discussion of how it will impact USGS Water systems and interpretive data.

Speakers

Bryce McClenney

hydro tech, USGS-South Atlantic

I am presenting on both the GNSS and Storm Response tracks. I have been involved with both GNSS and storm response campaigns all over the country and hope to convey some of my lessons learned as well as learn from others.

Thursday July 23, 2026 8:30am - 9:20am CDT
BCC - Lackey (54 Tiered Class Only)

GNSS/SURVEYING

Length 50 minutes

9:30am CDT

Break

Thursday July 23, 2026 9:30am - 10:00am CDT

BCC - Lackey (54 Tiered Class Only)

Thursday July 23, 2026 9:30am - 10:00am CDT
BCC - Lackey (54 Tiered Class Only)

10:00am CDT

Future Directions in GNSS Surveying: Proposed Changes to Field Data Collection Methods

Thursday July 23, 2026 10:00am - 11:20am CDT

BCC - Lackey (54 Tiered Class Only)

This session will focus on a new tech memo from the NGS (NOS NGS 92). I will present the changes in field survey methods the NGS has outlined in the document and discuss potential changes to USGS GNSS data collection methods to bring us into compliance.

Speakers

Bryce McClenney

hydro tech, USGS-South Atlantic

Thursday July 23, 2026 10:00am - 11:20am CDT
BCC - Lackey (54 Tiered Class Only)

GNSS/SURVEYING

Length 80 minutes

11:30am CDT

Lunch

Thursday July 23, 2026 11:30am - 1:00pm CDT

BCC - Lackey (54 Tiered Class Only)

Thursday July 23, 2026 11:30am - 1:00pm CDT
BCC - Lackey (54 Tiered Class Only)

1:00pm CDT

HDAC - Workshopping a workshop and how the sausage is made

Thursday July 23, 2026 1:00pm - 1:20pm CDT

BCC - Lackey (54 Tiered Class Only)

Have you ever paused to wonder what it really takes to organize a training workshop or to be a part of a high-functioning, collaborative, national level team? Well, this is your chance to get a clear, behind-the-scenes look at the role and how HDAC members can influence different initiatives and create tangible improvements within the data collection community. Join us to discover the wide range of activities HDAC undertakes — from workshop planning to offering practical, front line input that helps shape procedures, policies, and best practices across the organization.

During this open session, HDAC Chair Chris Smith along with current HDAC members will be on hand to share detailed insight into the group’s inner workings. Come prepared with your questions.

Speakers

Chris Smith

Field Office Chief, USGS

I am the Field Office Chief of the Norcross (Atlanta) Georgia office. I am also the Chair of the Hydrologic Data Advisory Committee (HDAC). I am proudest of my years helping others learn the job and my years of field work, where I have always tried to set a good example. My most significant... Read More →

Maria Clemens

Hydrologic Technician, USGS - OKI WSC

Member of HDAC and NWDTW 2024 Planning Team

Jordan Vance

Hydrologic Technician, USGS

Brian Imig

Hydrologic Technician, USGS

Ernie McCoy

Hydrologic Technician, USGS-Dakota WSC

Hydrotech at the Grand Forks field office in North Dakota. I started as a student the summer of 09, graduated from UND with a bachelors degree in Environmental Geoscience. I stream gage, collect discrete samples and run continuous monitors collecting the big five.

Sean Townsend

Hydrographer, USGS

Seth Bishop

Hydro Tech, USGS

Seth Bishop is a hydrologic technician in the Urbana, Illinois office of the Central Midwest Water Science Center. He has been with the USGS for eight years, focusing on surface water.

Hampton Childres

Georgia Michael

Hydrologic Technician, USGS

Crystal Hammer

Supervisory Hydrologic Technician/Field Office Chief (Columbus, OH), U.S. Geological Survey

I'm the Columbus OH Field Office Chief for the Ohio-Kentucky-Indiana WSC. For my 1st 2.5 years in the USGS, I worked out of the Pacific Islands WSC in Honolulu, Hawaii. I accepted a position in Columbus, Ohio to return to my home state and be closer to family having grown up in Cincinnati... Read More →

Thursday July 23, 2026 1:00pm - 1:20pm CDT
BCC - Lackey (54 Tiered Class Only)

Field Support

1:30pm CDT

Peak Precision from Your Desk: In-Office Validation of the Upper End of Stage-Discharge Rating Curves

Thursday July 23, 2026 1:30pm - 2:20pm CDT

BCC - Lackey (54 Tiered Class Only)

Developing reliable upper-end extensions of stage-discharge rating curves is often challenging due to limited high-flow measurements. This presentation outlines a clear hierarchy of preferred approaches—starting with direct flow measurements, followed by indirect methods—and then focuses on practical in-office techniques that can be performed without field work. Methods include estimating peak flows using areal regression (Q vs. drainage area), transferring peak discharges from upstream or downstream gages, and leveraging the StreamStats cross-section cutting tool along with the AreaComp3 software program to generate control and channel geometry. These desk-based strategies allow hydrologists to effectively vet rating descriptor pairs, assess curve shape, and confidently extend ratings to higher stages.

Speakers

Arthur Lilienthal

Hydrologist, USGS

Thursday July 23, 2026 1:30pm - 2:20pm CDT
BCC - Lackey (54 Tiered Class Only)

SURFACE WATER

Length 50 minutes
Can't teach Monday, AM;Monday, PM;Thursday, AM;

8:30am CDT

9:30am CDT

10:00am CDT

11:30am CDT

1:00pm CDT

1:30pm CDT

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