Hydraulic Conductivity and Transmissivity

This video describes the concepts of Hydraulic Conductivity and Transmissivity. I recommend checking the other videos out in this playlist before diving into this one, particularly the following:
• Unconfined Aquifers vs...
• Groundwater Flow Basics

[@robertoantoniofloresorozco286]

I have been trying to get this information for a while in spanish, I am glad you posted it, thanks

[@bellnoyd]

Great video - this helped me understand transmissivity much better. Thanks!

[@KamranAli-ke6gf]

Its very helpful , thanks a lot

[@anujkatheria1385]

thank you so much for clearing my concepts

[@eliinthewolverinestate6729]

My frog pond with burnt bluff sandstone along boundary line 4'x'8 at 4 feet deep. Only flows little over a gallon a minute out of overflow pipe. Farther down boundary line the seep in white sand layer above spring. It seeps about 5 gallons a minute. One point water runs under top soil but above white sand. I got no measurement of what the water runs under top soil at that point but is about what springs flow. There is a tree stump near that point too, so maybe a spring. The springs I have found come up through rotten tree roots in a sink. My water level of seeps seems very constant over 200 yards even as soil layers change.

[@faisalahmed8112]

Thank you for the presentation. ❤️

[@rab9212]

Great video, Thank you!

[@CheleChilindra]

Hey man this is really cool stuff; its a good refresher.

[@mohammadaasifkhaja1892]

Thanks for clearing our concepts sir. On a catchment scale how can we practically or empirically know the underground type of aquifer and calculate its hydraulic conductivity and transmissivity. I will be waiting for your response sir

[@mohamedraufmohamedaathiq7611]

Nice explanation, may god grant u more..

[@Arunachalii]

Tankew so much for clearing ma concept

[@ViMoviesHindi]

Best sir....
Thanks..

[@GodwinWamtasIsaac-xz7ri]

You explain it well.
How can I use vertical electrical sounding results to estimate hydraulic conductivity and transmissivity of an aquifer?

[@ach-ln2nn]

AWESOME. GOT CLARITY NOW!

[@joro8604]

Well done

[@mohammadaasifkhaja1892]

sir please a video on Drainage Characteristic timescale

[@Wyck7thCorp]

Isn't that equation of k missing the component of hydraulic gradient

[@ashokkumar-zv8rx]

Thank you sir

[@Ashish-li5yw]

What book did you read for understanding this concept ?
Or any other paper
Do tell

[@tigerbelly2152]

Perfecto!

[@AlbyBattyTECHannel]

Maybe you can make a video about permeability k (lowercase letter). In fact we have that the Hydraulic Conductivity K (uppercase letter) is K = (𝜌 g k) / μ. Thanks for your videos! :D

[@studioH20]

The relationship between hydraulic conductivity and transmissivity is not getting very clear. Could you please bring out that in an easier way?

[@daneandersen8181]

It's kind of confusing. Transmissivity is just hydraulic conductivity multiplied by the height of the aquifer, but a better way to think about it is that transmissivity describes how much water will move through the TOTAL aquifer body, while hydraulic conductivity describes water flow through a more discrete point in the aquifer. Transmissivity is better used in water supply applications (like determining how much water a well will produce for a drinking water purposes). Hydraulic conductivity is better used for describing how much water moves through a certain portion or bed within the aquifer, which is more applicable to contaminant hydrogeology, remediation, heterogeneous aquifers, etc.

[@deltarampock5978]

I think You may imagine transmissivity like a "plain" passing through aquifer per time unit.

[@kittuojha]

@@daneandersen8181 but in the darcy law we take the cross sectional area of the whole porous medium. when we try to fixate only on the water flowing through the pores we get seepage velocity, which is more than darcy velocity.
So, further multiyplying by width makes not much sense as the cross sectional area considered by darcy will automatically include the width b.. which begs the question why have you taken cross sectional areas differently

[@daneandersen8181]

@@kittuojha I'll have to think about that one... good question though.

[@siddalingeshwaradh5674]

Sir, what is the difference between hydraulic conductivity and permeability?

[@deltarampock5978]

@Google Genuine
Hydraulic conductivity is explaining and measuring how a Fluid able to flow
While permeability is explaining and measuring how a rock able to leting fluid to flow
Permeability unit is "Darcy", while Hydraulic Conductivity unit is "m/day" or else.
Hydraulic Conducitivity is depended on Viscosity, Type of Fluid, and Permeability, while Permeability isn't depend on those.

[@madabouthollyoaks411]

V helpful for my hw

[@jordanmarin8513]

How did you come up with the 10 gpm?

[@geoinfo631]

could you please explain more how to determine the area (A)? let say if we have two wells distance between them is 50m and delta h 10m

[@sarttfft]

The formula needs to modify slightly, actually u have forgot put the I, the formula should be like , K=Q/AI, thank u

[@daneandersen8181]

You're right, but in this example we are saying i=1, so it drops out of the equation. But yes, it is important to note i (hydraulic gradient) is part of this equation.

[@Leinerus]

Great video tho

[@ol-yadyetmgeta1535]

Can you give me list of books that helps me to understand calculating hydraulic conductivity using cumulative infiltration method or Auger hole method

[@daneandersen8181]

I'm not familiar with those methods... can you give me a little more information? For wells, hydraulic conductivity is estimated by aquifer testing. It sounds like what you're referring to may involve either bench-scale testing or soil science?

[@sidhantkumar1725]

Can you kindly make a video on storitivity

[@daneandersen8181]

Yes! I will get around to that for sure

[@talalmalki]

I heard about the Corona virus transmissivity and ended up here. Not sure if same for viruses. But probably close.