CSDMS - User contributions [en]

2022 CSDMS meeting-056

2022-04-11T16:06:16Z

Jed:

{{CSDMS meeting personal information template-2022
|CSDMS meeting first name=Jedidiah
|CSDMS meeting last name=Dale
|CSDMS Pronouns=he/him
|CSDMS meeting institute=Washington University in St. Louis
|CSDMS meeting city=St. Louis
|CSDMS meeting country=United States
|CSDMS meeting state=Missouri
|CSDMS meeting email address=jed@wustl.edu
|CSDMS meeting phone=6313165001
}}
{{CSDMS meeting select clinics1 2022
|CSDMS_meeting_select_clinics1_2022=1) Environmental seismology and distributed acoustic sensing (DAS)
}}
{{CSDMS meeting select clinics2 2022
|CSDMS_meeting_select_clinics2_2022=4) Xarray for Scalable Scientific Data Analysis
}}
{{CSDMS meeting select clinics3 2022
|CSDMS_meeting_select_clinics3_2022=2) Rapid hypothesis testing and analysis with the open-source delta model pyDeltaRCM
}}
{{CSDMS meeting abstract yes no 2022
|CSDMS meeting abstract submit=Yes
}}
{{CSDMS meeting abstract title temp2022
|CSDMS meeting abstract title=Disentangling controls on bedrock valley morphology of the Upper Mississippi River Valley
|Working_group_member_WG_FRG=Terrestrial Working Group
}}
{{CSDMS meeting authors template
|CSDMS meeting coauthor first name abstract=Claire
|CSDMS meeting coauthor last name abstract=Masteller
|CSDMS meeting coauthor institute / Organization=Washington University in St. Louis
|CSDMS meeting coauthor town-city=St. Louis
|CSDMS meeting coauthor country=United States
|State=Missouri
}}
{{CSDMS meeting authors template
|CSDMS meeting coauthor first name abstract=Henry
|CSDMS meeting coauthor last name abstract=Chandler
|CSDMS meeting coauthor institute / Organization=Washington University in St. Louis
|CSDMS meeting coauthor town-city=St. Louis
|CSDMS meeting coauthor country=United States
|State=Missouri
}}
{{CSDMS meeting abstract template 2022
|CSDMS meeting abstract=Fluvial valley width is determined by a combination of factors including regional lithology and drainage organization, as well as regional glacial and uplift history. In both topographic analysis and numerical modeling-based studies, valley width has been observed to follow a power law scaling relationship with drainage area. Local to regional scale studies have also demonstrated the influence of lithology, differential uplift, and drainage reorganization on this relationship. Yet, significant uncertainty remains regarding how these trends extend to the scale of large river networks and how they are influenced by transient forcing. The Upper Mississippi River Valley, initially incised during the early Pleistocene, presents a case study that encompasses a wide range of valley forms likely influenced by some combination of these factors, including by not limited to Spatially variable glacial history, bedrock lithology, and punctuated drainage reorganization events. This research aims to analyze the variable contribution of lithology, downstream changes in drainage area and history of reorganization, and regional variability in glacial isostatic adjustment in determining downstream trends in valley morphology. By isolating these effects, we aim to determine whether there is an extractable signal of the conditions during initial valley incision embedded in modern valley topography. Here we present a dataset of high-resolution valley aspect ratio and curvature, paired with longitudinal trends in drainage area and bedrock lithology. This is compared with empirical expectations for valley width scaling. Preliminary analysis found an overall downstream valley widening trend, however with multiple perturbations, including narrow gorges, and locally beveled valley walls caused by a combination of lithologic transitions and differing drainage integration histories.
}}
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2022 CSDMS meeting-056

2022-02-23T18:55:53Z

Jed: Created page with "{{CSDMS meeting personal information template-2022 |CSDMS meeting first name=Jedidiah |CSDMS meeting last name=Dale |CSDMS Pronouns=he/him |CSDMS meeting institute=Washington..."

User:Jed

2022-02-17T20:29:19Z

Jed: Created page with "{{Signup information member |First name member=Jedidiah |Last name member=Dale |Pronouns=He/Him |Institute member=Washington University in St. Louis |Department member=Earth a..."

{{Signup information member
|First name member=Jedidiah
|Last name member=Dale
|Pronouns=He/Him
|Institute member=Washington University in St. Louis
|Department member=Earth and Planetary Sciences
|City member=St. Louis
|Country member=United States
|State member=Missouri
|Confirm email member=jed@wustl.edu
|Working group member=Terrestrial Working Group, Human Dimensions Focus Research Group
|Emaillist group member=yes
|Memberagreement=I have read and agree to the Privacy Policy
}}