Christmas cracker
We are calling this our “Christmas Cracker” webinar for two good reasons. Firstly, it was held just 10 days before Christmas. Secondly, it was entertaining, and easy to listen to.
October 19, 2020
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basic, technical, Webinars
Webinar series: Decision-Support Modelling Principles and Practice
In May and June 2020, GMDSI offered a four-part webinar series on decision-support modelling principles and practice. John Doherty and Catherine Moore presented the first
July 8, 2020
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PEST++ V5
On 22 September 2020, Jeremy White and Mike Fienen from the USGS presented a GMDSI sponsored webinar on PEST++ V5. PEST++ V5 includes a wide
May 3, 2020
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Who cares? What will it cost?
Approaches to improve the value of models and to reduce total project costs. Presented by Ty Ferre, University of Arizona. Download on VIMEO
April 21, 2020
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Getting the Most out of PEST – Part 2
This second video of a two-part series covers calculation of finite-difference derivatives, defences against model output numerical granularity, some aspects of observation weighting, termination criteria,
April 21, 2020
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Getting the Most out of PEST – Part 1
This is the first video of a two-part series whose intention is to provide PEST users with some information on how to use PEST, and
April 21, 2020
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What is PEST?
This video provides an overview of PEST and the three families of utility software that accompany it. It also provides a brief discussion of the
April 21, 2020
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3. Well Posed Inversion
This video shows how parameters can be estimated when model calibration constitutes a well-posed inverse problem. However, in groundwater modelling, well-posedness does not occur unless
April 21, 2020
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1. Vectors and Statistics
This video provides a short refresher on some aspects of matrix and vector algebra that we all learned at school but have since forgotten. It
April 21, 2020
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2. What is Calibration?
This short video discusses what it means to calibrate a groundwater (or other) model. Calibration implies uniqueness. The quest for uniqueness is not a quest
April 21, 2020
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