thermo_diagrams_[EDocFind.com] - Thermodynamic Diagrams...

Info icon This preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
Thermodynamic Diagrams
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Thermodynamic Diagrams What are they and why do we need them? Need them to present & visualize thermodynamic processes They are used to keep track of how high in the atmosphere the air parcel is (P and z) and what temperature it has There are many other atmospheric variables on the thermo diagram so we can keep track of: whether the parcel of air is dry (or moist) or saturated, where clouds form (and how thick they are), how much precipitation may fall, how severe thunderstorms may get, what type of precipitation falls, etc. Another advantage … we can measure energy associated with parcels!
Image of page 2
3 Lines on a Tephigram Dry Adiabats – lines of constant lapse rate (DALR) Pseudo-adiabats or wet adiabats – lines of constant lapse rate (SALR) Temperature – in degrees Celsius Pressure – in millibars (mb) Mixing ratio – in g/kg Area between lifted parcel and environmental curve indicates stability
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
4 Closer Look at the Tephi Isotherms green li n es Deg F
Image of page 4
5 Closer Look at the Tephi mixing ratio – o ra n g e s olid l i nes
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
6 Closer Look at the Tephi adiaba ts – ora n ge s olid lines
Image of page 6
7 Closer Look at the Tephi isobars – green solid lines (curved)
Image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
8 Closer Look at the Tephi satu rated adiabats – o ra n ge so lid l in es ( cu rve d ) also called psuedo-adiabats Note how SALR slope becomes Similar to DALR as w decreases!
Image of page 8
9 Use of Tephigram To assess stability Stable, unstable, conditionally unstable Stable, unstable, conditionally unstable (or conditional (or conditional instability) instability) Slope of the atmospheric profile or environmental lapse rate relative to SALR or DALR Steeper the slope (leaning more to the left with height), more unstable Remember lapse rates are negative so bigger number Remember lapse rates are negative so bigger number
Image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '12
  • alibar
  • Atmospheric thermodynamics, lapse rate, Thermodynamic diagrams, potential temp, wet-bulb potential temp, env Td lapse

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern