The Grill

Goals:

• Solve hydrology
• See 2026

Outcomes:

• A better understanding of some of the tools, semantics, and shenanigans I encountered last week.
• A clearer picture of what’s next.

Topics:

• LWIL (Last Week I Learned) / Story Time

For: Group updates, humanity, and human welfare (homage to (Chow 1988))
Title slide background from: https://media3.giphy.com/media/v1.Y2lkPTc5MGI3NjExazFtdGlvYnVmcHl5Z3FpZGJkYTZsMmw3eXJuZ3A3YnJta2UxbTN2diZlcD12MV9pbnRlcm5hbF9naWZfYnlfaWQmY3Q9Zw/111RMoa4bwH9zq/giphy.gif Background images from:

• OWP presentation template background: ./_Water_color.png or ./_Water_bw.jpg - “cover”
• My own efforts from Water PNGs by Vecteezy, https://www.vecteezy.com/members/ahasanaraakter: _vecteezy_ai-generated-water-wave-splash.png / _vecteezy_ai-generated-water-wave-splash_bw.png / _vecteezy_ai-generated-water-wave-splash_bw_blur.png - “contain”

Presentation Navigation Tips

Slide layout : This deck has one axis, use any key to advance.

: This deck has interactive elements

Items linked/bordered in green are cited in the tooltip on hover.

Items linked/bordered in blue are hyperlinked to relevant resources.

Photos are Allowed | Questions are Encouraged

: ~5 minutes | Last updated:08/25/2025 20:44:43

! PLEASE !

Interrupt me and ask questions or clarifications.

I’m here to talk with you now, not to these slides.

Control tips

My preferred (FOSS) flavor of slidedecks, revealjs, has intuitive but none the less unconventional PowerPoint presentation controls:

• Slides dynamically resize to use the entirety of the browser window, but you can still fullscreen with F.
  • This slide has a red border indicating the content extent.
• Slide navigation is mode dependent. If there are vertical slides, press space, N, or the down arrow key, not the right arrow to advance slides
• Press M to open to the menu, Press O for the slide deck overview, Press B to black out the presentation screen, Press S for a speaker view.
• You can use the chalkboard to freemouse/touchpad draw.
• Slides should render as designed¹ but you can press Alt/Opt + click on the slide to zoom in. Increase text size with Alt/Opt + +, Alt/Opt + - to decrease, and Alt/Opt + 0 reset to the default scale.
• Press C to declare victory and head home.²

This presentation

Speaker notes

1. tested in an updated version of google chrome

2. A favored quote from one of my giants: Dr. David Maidment

Project Status and Updates

%%---
%%displayMode: compact | The 7 P's of Project Management (needs a refresh) | Yesterdays weather | I have the estimation prowess of George RR Martin | This week's timeline by Captian Hindsight
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%% [Mermaid](https://mermaid.live/edit)
gantt
    dateFormat  YYYY-MM-DD
    title       I have the estimation prowess of George RR Martin
    excludes    weekends
    %% (`excludes` accepts specific dates in YYYY-MM-DD format, days of the week ("sunday") or "weekends", but not the word "weekdays".)
    %% todayMarker stroke-width:5px,stroke:#0f0,opacity:0.5

    section GANTT Chart Key
    Completed task                :done,       des1, 2025-07-20, 10d
    Completed critical task       :crit,done,  des2, after des1, 10d
    Active task                   :active,     des3, after des2, 10d
    Future task                   :            des4, after des3, 10d
    critical task                 :crit,       des5, after des4, 10d

    section Topics
    V3.0                           :active,crit, 2025-07-21, 35d
    River slope population         :done, 2025-07-28, 10d
    FIM pipeline resurrection      :done, 2025-08-04, 2d
    Slope feature pollination      :done, 2025-08-11, 4d
    Sword intigration prototype    :done, 2025-08-14, 2d
    Slope STATISTICS and DOCUMENTATION            :active,2025-08-21, 4d
    Slope targets and functionalization   :done,    2025-08-18, 3d
    STAC surface minting           :active,   2025-08-15, 11d
    Profile plotting and metrics   :active,   2025-08-25, 5d
    
    section Deadlines and Events
    Labor Day                      :2025-09-01, 1d

Risks:

• 3: Not enough time in the day.
• 4: Lack of ADCP.
• 5: Unable to afford to live in a van down by the river
• 6: (re 3) Rendering is delayed: solution - do it Friday
• 7: (pre 5) Coffee prices: solution -

← likelihood →

5

3

Progress:

• Metric scoping
• Domain selection
• Database draft
• Did NOT send sensitive information over group chat
• Calling it: Coheed covers christmas

4

7

6

← consequence →

Last updated: 08/25/2025
(A Tentative WIP)

Look at me, I’m project management now!
!IMPORTANT!: You should at least double every estimate I give you and nothing is ever done

Risk 1 (The general lack of forethought or concern from empowered blowholes) has evolved into risk 5
5: Retirement - I wasn’t going to make it that far anyways. - removed, risk was realized and no one likes risk

Slope tests: domain context

todo

I clearly have no idea what I’m doing…

Slope methods: todo

I clearly have no idea what I’m doing…

Slope results: model slope

Data Table

Slope results: SWORD slopes

Data Table

	RRASSLER_key	pdsd	model_area	Permanent_Identifier	FDate	Resolution	GNIS_ID	GNIS_Name	LengthKM	ReachCode.x	FlowDir	WBArea_Permanent_Identifier	FType	FCode	MainPath	InNetwork	VisibilityFilter	Shape_Length	NHDPlusID	Enabled	StreamLeve	StreamOrde	StreamCalc	FromNode	ToNode	HydroSeq	LevelPathI	PathLength	TerminalPa	ArbolateSu	Divergence	StartFlag	TerminalFl	UpLevelPat	UpHydroSeq	DnLevel	DnLevelPat	DnHydroSeq	DnMinorHyd	DnDrainCou	FromMeas	ToMeas	ReachCode.y	RtnDiv	Thinner	VPUIn	VPUOut	AreaSqKm	TotDASqKm	DivDASqKm	MaxElevRaw	MinElevRaw	MaxElevSmo	MinElevSmo	Slope	SlopeLenKm	ElevFixed	HWType	HWNodeSqKm	StatusFlag	x	y	reach_len	n_nodes	wse	wse_var	width	width_var	facc	n_chan_max	n_chan_mod	obstr_type	grod_id	hfalls_id	slope	dist_out	lakeflag	max_width	n_rch_up	n_rch_dn	rch_id_up	rch_id_dn	swot_orbit	swot_obs	type	river_name	edit_flag	trib_flag	path_freq	path_order	path_segs	main_side	strm_order	end_reach	network	geometry
243	1115819_2360_ras_g01_1712630157	1115819	2398746646	104744344	2014-06-06T00:00:00	2	01375103	Neches River	1.69464	12020003008679	1	120028141	558	55800	0	1	0	0.0170621	3.00008e+13	1	4	8	8	3.00008e+13	3.00008e+13	3.00008e+13	3.00008e+13	186.7668	3.00008e+13	34124.71	1	0	0	3.00008e+13	3.00008e+13	4	3.00008e+13	3.00008e+13	0	1	0	100	12020003008679	0	NA	0	0	0.5837	18828.37	18823.73	-9998	2508	2530	2530	1e-05	1.69464	0	NA	NA	A	-94.40931	31.02562	11542.81	58	27.75	1.137485	42	141.1555	9544.698	1	1	0	0	0	0.2835481	279073.9	0	330	1	1	75120400446	75120400421		0	1	Neches River	NaN	0	1	136	178	0	1	0	8	LINESTRING (-95.74099 32.50...

Slope results: statistics

I clearly have no idea what I’m doing…

Next Steps

Early Findings

• SWORD is too sparse for our application scale
  • but could make for excellent POI’s!
  • Early draft here: link_todo
• Spatial conflation ; Network conflation
• Emphasis on the full representation of the ‘vector’ of the measurement
  • slope is not “grade”, but is conceptually conflated too frequently

Next Tasks

• More polish and reporting
• multi-surface slope continuity tests
• V3 creation
• Figure out how to make a better map (reveal fights with everything, leafpop is breaking things)…
• Update RRASSLER with sample data from M3

I like going outside

A Statement

I believe a competent modeler can use variations in modeling surface and the uncertainty in parameterizations to reach a suitable equifinality prediction.

Therefore, I find it very hard to find something useful to say in the face of competing objectives and value judgments, and a shameful lack of observation and geographic context.

I used to go outside…

A Contribution

My contribution to the science is a public, reproducible demonstration of technical and methodological excellence (ha). In order to communicate the nuances surroundings the quantification of accuracy and equifinality of FIM, I introduce concepts including mapping and modeling surfaces, and library creation and access patterns.

I used to go outside…

Making Sense Around Wicked(ly fun!) Problems

mindmap
  Wicked Problem
    Every problem is unique
      E.G.: Water is not the same as a biological outbreak
    Every problem is connected to others
    E.G.: FEWS
    There is no clear problem definition
    Are multi-causal, multi-scaler, and interconnected.
    Include multiple, invested stakeholders with different values, goals, and objectives.
    Straddle organizational and disciplinary boundaries
    Solutions to an aspect have implications/ramifications across the system
    Solutions are not right or wrong, but good and bad
    Can be difficult to measure or evaluate effects of implemented solutions
    Problems are never completely solved
      They are wicked problems, not wicked puzzles

I demonstrate that these are critical factors in the execution of FIModeling, and that with this new framing we can try and make a little more sense around our wicked problem.

I used to go outside…

Interested in learning more?

If the contents of these pages somehow resonate with you, you’re exactly who I want to talk to! Please reach out and don’t be afraid to bump your email if I don’t respond in a timely fashion. I am oversaturated, keep track of too many inboxes, and appreciate the reminder.

Thank you for entertaining my advanced idiocy. Now I should get back to work [[20240325082848]] _creating knowledge

Chow, Ven Te. 1988. Open-Channel Hydraulics. Reissued. McGraw-Hill Classic Textbook Reissue Series. Boston, Mass.: McGraw-Hill.