Anne Jefferson
Anne Jefferson
  • 39
  • 88 908
Why climate changes (Part 4: Human activity causes climate change)
In this video, I show how greenhouse gas concentrations have been tightly linked to temperature over time and have increased dramatically since the start of the industrial revolution. I discuss how greenhouse gas emissions are linked to fossil fuel combustion and how the isotopic signature of carbon in the atmosphere has shifted to be more like the fossil plants we are burning. Finally, I show how climate models and atmospheric physics quantify the warming effects of human activities and different greenhouse gases.
Переглядів: 117

Відео

Why climate changes (Part 3: Greenhouse gases and global warming potential)
Переглядів 86Рік тому
In this video, I discuss the fact that different greenhouse gases have different impacts in the atmosphere, and I show that their concentrations are increasing over time.
Why Climate Changes (Part 2: The Greenhouse Effect)
Переглядів 52Рік тому
In this video, I describe the how the greenhouse effect works and discuss the major greenhouse gases.
Why climate changes (Part 1: Intro and Weather vs. Climate)
Переглядів 64Рік тому
In this video, I describe how to spot a logical fallacy (something that often comes up in climate arguments) and I explain the difference between weather and climate. In later videos, I'll discuss greenhouse gases and the greenhouse effect, how we know humans are causing the current climate change, and more. Thanks to Peter Berquist for the logical fallacies slides and framework available throu...
How to get water year precipitation from the Dry Creek weather stations
Переглядів 1062 роки тому
This video is for students in Watershed Hydrology at Kent State University working on the Precipitation Spatial Average project by Boise State University and following instructions here: www.boisestate.edu/drycreek/educational-resources/precipitation-spatial-average/#project-instructions
Water Years and Accumulated Precipitation
Переглядів 9092 роки тому
In this video, I give the definition of a water year and I show the difference between looking at precipitation data that are incremental versus accumulated. If you are looking at precipitation data that are accumulated and on a calendar year basis, I show you how to calculate the value for the water year. This video is for students in Watershed Hydrology at Kent State University.
Smiley in the snow
Переглядів 523 роки тому
Frolicking in Ft. Collins snow, November 2019
Renewable Energy: Solar (Week 11, Lecture 2)
Переглядів 1523 роки тому
In this video, we will talk about how this works and explain how solar energy can be used for direct heating and for electricity generation via concentrated heating and photovoltaic cells. We will also discuss some of the tradeoffs associated with large-scale solar energy production.
Renewable Energy: Wind (Week 11, Lecture 1)
Переглядів 2013 роки тому
In this video, we’ll discuss wind energy. We will summarize how electricity is generated using wind turbines, describe where the greatest wind energy resources are in the US, and discuss why offshore wind may be advantageous relative to onshore development in some areas. We will also describe what the human and environmental arguments are for and against wind energy.
Renewable Energy: Geothermal (Week 11, Lecture 3)
Переглядів 2033 роки тому
This is the final video in our series on renewable energy sources. In this lecture, I will describe how electricity is generated using geothermal energy, and what environmental constraints are faced by this type of energy generation. I will describe how geothermal energy can be used for space heating, and I will also explain the basic way a geothermal heat pump operates and how it differs from ...
Renewable energy: biofuels (Week 10, Lecture 1)
Переглядів 3033 роки тому
In this lecture, we will talk about biological forms of renewable energy, showing where they fit in the US energy portfolio and in terms of energy return on investment,. We will describe several sources of bioenergy and talk about the advantages and challenges of each.
Renewable Energy: Hydropower (Week 10, Lecture 2)
Переглядів 1043 роки тому
In this lecture, we’ll talk about how hydroelectricity is generated, where it is generated and where there is the potential for future hydropower production. We’ll also talk about how hydropower projects can change the hydrology and ecosystems of rivers, and some of the other drawbacks associated with the use of hydropower.
Renewable energy: tidal energy (Week 10, Lecture 3)
Переглядів 1723 роки тому
Continuing our discussion of renewable energy sources, in this lecture, we’ll talk about tidal energy and other sources of ocean energy, such as wave energy and thermal energy. Ocean energy is a form a renewable energy that isn’t much used in the United States, but the technology exists and it is used to a limited extent in other parts of the world. We’ll describe how tidal barrages and tidal t...
Unconventional fossil fuels - shale gas and tight oil (Week 9, Lecture 1)
Переглядів 3,9 тис.3 роки тому
This lecture will cover unconventional fossil fuels. We will describe the difference between unconventional fossil fuels and the conventional fossil fuels you learned about last week. We will also describe the use of horizontal drilling and hydraulic fracturing to produce shale gas and tight oil and the environmental hazards associated with this production.
Factors that affect flooding (Week 6, Lecture 3)
Переглядів 1963 роки тому
In this video, I'll discuss natural and human-related factors that affect flood severity, both those that make flooding worse and what we can do to mitigate floods. I'll also distinguish between flash floods and downstream floods.
What are floods, and how do we measure them?
Переглядів 1,7 тис.3 роки тому
What are floods, and how do we measure them?
Watersheds and hydrographs (Week 6, Lecture 1)
Переглядів 2313 роки тому
Watersheds and hydrographs (Week 6, Lecture 1)
What are soils? (Week 4, Lecture 1)
Переглядів 943 роки тому
What are soils? (Week 4, Lecture 1)
Environmental Earth Science Themes (Week 1, Lecture 1)
Переглядів 1804 роки тому
Environmental Earth Science Themes (Week 1, Lecture 1)
Soil Moisture Concepts and Measurement
Переглядів 1,1 тис.4 роки тому
Soil Moisture Concepts and Measurement
Soil Water Potential
Переглядів 12 тис.4 роки тому
Soil Water Potential
Flood frequency analysis: cautionary notes and examples
Переглядів 1,9 тис.4 роки тому
Flood frequency analysis: cautionary notes and examples
Flood Frequency Analysis Basics
Переглядів 34 тис.4 роки тому
Flood Frequency Analysis Basics
What is a flood? What distinguishes a moderate from a major flood?
Переглядів 5804 роки тому
What is a flood? What distinguishes a moderate from a major flood?
What do hydrologists do with streamflow data? Part 2
Переглядів 1,3 тис.4 роки тому
What do hydrologists do with streamflow data? Part 2
Basic streamflow analyses - hydrographs and flow duration curves
Переглядів 5 тис.4 роки тому
Basic streamflow analyses - hydrographs and flow duration curves
How to measure streamflow & create a rating curve
Переглядів 4,4 тис.4 роки тому
How to measure streamflow & create a rating curve
Saving tabular streamflow data and getting it into Excel
Переглядів 1 тис.4 роки тому
Saving tabular streamflow data and getting it into Excel
Field measurements of streamflow as shown through USGS NWIS
Переглядів 4264 роки тому
Field measurements of streamflow as shown through USGS NWIS
How to look at and download streamflow data from the USGS NWIS website
Переглядів 3,1 тис.4 роки тому
How to look at and download streamflow data from the USGS NWIS website

КОМЕНТАРІ

  • @eberenwosu6098
    @eberenwosu6098 5 місяців тому

    Please, kindly send links (including UA-cam links) on how to SPLIT PEAK SERIES into two and analyze Flood frequency analysis using PEAKFQ or HEC-SSP. Thank you very much.

  • @eberenwosu6098
    @eberenwosu6098 5 місяців тому

    Please, kindly send links (including UA-cam links) on how to SPLIT PEAK SERIES into two and analyze Flood frequency analysis using PEAKFQ or HEC-SSP. Thank you very much.

  • @erniebanares1401
    @erniebanares1401 6 місяців тому

    Thanks, very informative.

  • @Sep78658
    @Sep78658 8 місяців тому

    Super helpful! Thanks Anne 🙂

  • @hsahil_10
    @hsahil_10 8 місяців тому

    Very well explained! thank you.

  • @akoskalman3897
    @akoskalman3897 Рік тому

    Hey Anne thanks for the video! Could you explain please what to do in case you have duplicates in your dataset?

  • @sumbalriaz5124
    @sumbalriaz5124 Рік тому

    Great explanation. Many thanks

  • @divymathur4163
    @divymathur4163 Рік тому

    Thank you so mch

  • @joseiturri6006
    @joseiturri6006 Рік тому

    What an outstanding explanation from a pedagogical point of view.

  • @qadrmuhamad6706
    @qadrmuhamad6706 Рік тому

    Thanks 😊

  • @nkundizanaabbas3006
    @nkundizanaabbas3006 Рік тому

    Thank You for this tutorial..Where can we get the details of how to do the analyses

  • @qadrmuhamad6706
    @qadrmuhamad6706 Рік тому

    Thank you 🙏🏼

  • @jacinthdavid1122
    @jacinthdavid1122 Рік тому

    Got this video recommended to me, great stuff. I want to understand ENSO, looking for resources to learn that

  • @ewunetutarkegn1737
    @ewunetutarkegn1737 2 роки тому

    thank you!

  • @CalifornianViking
    @CalifornianViking 2 роки тому

    Great video

  • @workflowai
    @workflowai 2 роки тому

    Create your own workflow now ua-cam.com/channels/Y94dsdGClsDcgQxg_D6Bjw.htmlfeatured

  • @christossylalika6032
    @christossylalika6032 2 роки тому

    Works only for USA

  • @svennorthwest6233
    @svennorthwest6233 2 роки тому

    Awesome explanation of basic hydrometry. Thank you for sharing this with the world here

  • @user-fv6zx8bu5i
    @user-fv6zx8bu5i 2 роки тому

    thank y

  • @mohammedazeez1504
    @mohammedazeez1504 2 роки тому

    very informative and useful.... Thanks

  • @Hope-ig8ir
    @Hope-ig8ir 2 роки тому

    and under which situation should we use Gumbel method? This is really confusing me.

  • @GeoscienceImaging
    @GeoscienceImaging 2 роки тому

    What about melt water from ice & snow, etc.? Seems like could produce a spring high flow event in mountain streams, and could produce "storm"-like hydrograph peaks in spring from warm days.

  • @kolakareem2441
    @kolakareem2441 2 роки тому

    Dear Dr Jefferson, this was so helpful to me. I really appreciate the effort. I have subscribed to your channel and I will visit this channel regularly. Please, keep creating contents.

  • @jeremymorris1307
    @jeremymorris1307 2 роки тому

    Great lecture, thanks for sharing.

  • @tanyongboon1082
    @tanyongboon1082 2 роки тому

    Thank you for this wonderfully clear and insightful video! I like your analogy of jelly donut and tiramisu

  • @englishspeaking2533
    @englishspeaking2533 3 роки тому

    Thank you so much

  • @anilkumarsharma8901
    @anilkumarsharma8901 3 роки тому

    indian pandits do this type of analysis from first day of universe

  • @anilkumarsharma8901
    @anilkumarsharma8901 3 роки тому

    i will do it very easily with volume analysis

  • @miriamndini4825
    @miriamndini4825 3 роки тому

    thank you for the video. Why you say that recurrence interval is not the same as return period? indeed they are the same

    • @audiophile...
      @audiophile... 2 роки тому

      She was talking about the probability being a better refference than return period. Because a 100yr return period sends a wrong notion when it can actually occur the very next day, although you r right in saying that RI and RP are the same.

  • @DHONEKPAGPB
    @DHONEKPAGPB 3 роки тому

    Very good mam

  • @santabanana
    @santabanana 3 роки тому

    It is P= m/(n+1) => Weibull plotting position not P= m/n + 1

  • @wangechijefferson6067
    @wangechijefferson6067 3 роки тому

    We can all agree that that's a heap of snow

  • @hamishthecat666
    @hamishthecat666 3 роки тому

    Nice presentation! The plot at 3:30 actually shows hydraulic conductivity declining logarithmically with depth, not exponentially. Regarding terminology, we use "interflow" only to refer to the perched saturated lateral flow; subsurface stormflow that is not perched we still call (shallow) groundwater. Thanks for this :)

  • @nathanedmunds9802
    @nathanedmunds9802 3 роки тому

    Your lectures are very good.

  • @MrCaraccho
    @MrCaraccho 3 роки тому

    Premium content

  • @joannmossa5509
    @joannmossa5509 3 роки тому

    Excellent presentation and graphics. Thanks for sharing.

  • @user-kn9gx3nm4k
    @user-kn9gx3nm4k 3 роки тому

    In your answer, consider magnitude, frequency, duration, rate of change and timing of flow . Thank you.

  • @fan2200
    @fan2200 3 роки тому

    Thanks for clear explanation... I would like to ask about how to estimate the uncertainty ( red lines ) for the data plotted in the graph

  • @dpeboy3634
    @dpeboy3634 3 роки тому

    How to connect with u mam?

  • @rjwilliford1
    @rjwilliford1 3 роки тому

    Excellent! Thank you.

  • @alithearsenalfan
    @alithearsenalfan 3 роки тому

    THANK YOU

  • @chrisfrissell3081
    @chrisfrissell3081 3 роки тому

    This is a dead-on excellent video series on runoff generation mechanisms. Perfect for my undergrad hydrology classes. I greatly appreciate your sharing them, as do my students. Thanks!

  • @adityaprakash3745
    @adityaprakash3745 3 роки тому

    Great illustration, thanks a lot

  • @saxoucheri
    @saxoucheri 4 роки тому

    Very good presentation, super clear. Thanks a lot

  • @yaorongliu3497
    @yaorongliu3497 4 роки тому

    thanks! i was taking an hydrology class and got confused by subsurface storm flow

  • @mohammedmirghani6750
    @mohammedmirghani6750 4 роки тому

    Thank you, very helpful video. I have a question !! how can I know the best distribution to use at the fitting stage ? I know that there are so many like pearson type 3 and Extreme value etc... and is there a software that can do this for me ?i.e. show me the best fit distribution and thanks again

    • @mohammedmirghani6750
      @mohammedmirghani6750 4 роки тому

      I need this for river water level frequency analysis to select the best location for an agricultural pump station

  • @nareshsuwal9500
    @nareshsuwal9500 4 роки тому

    Need to mention the link on the descriptions. It will be helpful.

  • @esaugarwi3575
    @esaugarwi3575 4 роки тому

    thank you very much

  • @marycorrigan2718
    @marycorrigan2718 5 років тому

    Hey kids this is not a very safe place to play. The current in that river is very strong

  • @marycorrigan2718
    @marycorrigan2718 5 років тому

    WOW