>Chapter 3
Home » Teaching » HYD 143 : Ecohydrology » Syllabus » Chapter 3
In this Section: Instructor » Grading Policy » Syllabus » Online TA Help » Video Response Quizzes » Group Presentations » In-class Assignments
In this Section: Chapter 1 » Chapter 2 » Chapter 3 » Chapter 4 » Chapter 5 » Group Activity 1 » Group Presentations 1 » Chapter 6 » Chapter 7 » Chapter 8 » Chapter 9 » Group Activity 2 » Group Presentations 2 » Chapter 10 » Chapter 11 » Chapter 12 » Chapter 13 » Chapter 14 » Chapter 15 » Group Activity 3 » Group Presentations 3 » Chapter 16 » Chapter 17 » Chapter 18 » Chapter 19 » Chapter 20 » Chapter 21

Chapter 3

Forest Hydrology- Evapotranspiration

Outline:

  • Evaporation as a component in the watershed water balance
  • Energy balance for a generic point
  • Forest energy balance
  • Penman-Monteith equation
  • Large eddy simulation of vapor and heat tranport through and above a forest

Course Reader:

  • "FAO Penman-Monteith equation". In: Allen, R. G., Pereira, L. S., Raes, D., Smith, M. (Eds.). Crop evapotranspiration - Guidelines for computing crop water requirements. FAO Irrigation and drainage paper 56. http://www.fao.org/3/X0490E/x0490e00.htm#Contents

Introductory ET web links:

  • What is evapotranspiration?
  • Importance of evapotranspiration
  • Detailed explanation of transpiration
  • How the stomata and guard cells work

ET measurement related web links:

  • Net radiometer image
  • Weighing Lysimeter image
ET Research web links:
  • Global ET
  • Remote sensing of ET in the Rio Grande
  • Heat Island Research

Penmen-Monteith web link:

  • P-M online calculator
  • P-M derivation details

Video Podcast: Forest Hydrology- Evapotranspiration, part 1

This 25-minute presentation introduces energy balance concept at watershed scale and conceptualizes evaporation, transpiration, and sap flow.

  • 640 x 480 (480p) format that balances speed and quality. (225 MB file)
  • 1920 x 1280 (HD) format that provides larges size and best quality. (1.3 GB file)

Errata

On slide 2, I want to be clear that the terms "SM" and "depression storage" come into the water balance to the extent that they are changing.  The left side of the equation is show influx and the right side outflux.  Soil moisure storage and depression storage in and of themselves are not fluxes.  It is when they change that there is a flux. Sometime they will go up and other times down.  It is the addition or loss of water that is in the equation, not the storage itself.

On slide 25, there is an internet link to get to the online PM calculator. That link has changed. The new link is http://www.geos.ed.ac.uk/homes/rclement/micromet/java/netpmont.html. Because this tool uses Java, some browsers block its use as a security risk, so it may not work for you if your browsers settings prevent it.

Your browser does not support the video tag.

Video Podcast: Forest Hydrology- Evapotranspiration, part 2

This 35-minute presentation works through the Penmen-Monteith (PM) equation and explains the terms in it, illustrate ecohydrologic processes with the PM equation, and introduces atmospheric boundary layer water and heat flux concepts.

NOTE: the content beginning at slide 3-29 is optional.  It will not be on any test or assignment.  This optional content begins at 31 min 32 sec into the video.  

  • 640 x 480 (480p) format that balances speed and quality. (352 MB file)
  • 1920 x 1280 (HD) format that provides larges size and best quality. (1.57 GB file)
Your browser does not support the video tag.

Last Chapter :: Next Chapter

In this Section: Instructor » Grading Policy » Syllabus » Online TA Help » Video Response Quizzes » Group Presentations » In-class Assignments
In this Section: Chapter 1 » Chapter 2 » Chapter 3 » Chapter 4 » Chapter 5 » Group Activity 1 » Group Presentations 1 » Chapter 6 » Chapter 7 » Chapter 8 » Chapter 9 » Group Activity 2 » Group Presentations 2 » Chapter 10 » Chapter 11 » Chapter 12 » Chapter 13 » Chapter 14 » Chapter 15 » Group Activity 3 » Group Presentations 3 » Chapter 16 » Chapter 17 » Chapter 18 » Chapter 19 » Chapter 20 » Chapter 21
>Chapter 3
  • Home
  • About Me
  • Research
    • Scientific Highlights
    • Projects
      • Near-Census River Science
        • 2DMUs
        • Hydraulic Topography
        • Topographic Change Detection
        • Topographic Change Processes
        • Floodplain Inundation
        • Streamwood Storage
        • Upper South Yuba
        • Salmonid Migration
        • North Yuba River
        • Salmon Migratory Habitat
      • Geomorphic Covariance Structures
      • Synthetic River Valleys
      • Watershed Processes
        • Watershed Sediment Transport
        • Watershed Streamwood
        • Watershed Sedimentation
      • River Rehabilitation
        • Spawning Habitat Rehabilitation
        • Cobble/Gravel Injection
        • Streamwood Jams
        • Geomorphologist's Guide
      • Waterfalls
        • Horseshoe Falls
        • NSEAM 1.0
        • Hydraulic Jumps
        • Small Step Mapping
        • Small Step Hydraulics
      • Tidal Freshwater Deltas
        • TFD Introduction
        • TFD Vegetation
        • TFD Sediment Cycles
        • TFD Ecogeomorphology
        • TFD Hydrometeorology
        • TFD Sediment Transport
        • TFD Modeling
        • TFD Animal Response
        • Bush River, MD
        • Winter's Run, MD
      • Estuarine Processes
        • Salinas River Estuary
        • San Joaquin-Sacramento Delta
        • Blackwater National Wildlife Refuge
        • Long Island Sound
      • Functional Flows Model
      • Volcanic Lakes
        • VL Classification & Modeling
        • VL Bibliography
        • Keli Mutu
          • Remote Sampling Strategy
        • Lake Batur
        • Other Volcanic Lakes
      • Agricultural Sediment
      • Urban Rivers
      • Chaos in Hydrology
      • Channel Types
    • Methods
      • Net Sedimentation Tile (NST) Protocol
      • Sediment Core Processing Protocol
      • Vibracoring Protocol
      • Loss-On-Ignition Protocol
      • C-14 Sample Selection and Prep Protocol
      • Cation Sample Prep and Analysis Protocol
      • Grain Size Distirbution Protocol
      • MS Word Fig. code
      • Kite Blimp Method
      • Laser Granulometer Protocol
    • Software
      • River Builder
    • Sponsors
  • Teaching
    • SAS 004Y : Water in Popular Culture
      • Course Logistics
      • Sections
      • Syllabus
        • SAS004 Introduction
        • Water Scarcity
        • Water Scarcity Discussion
        • Floods
        • Flood Insurance Discussion
        • Water Quality
        • Water Quality Discussion
        • Water & Psychology
        • Water Psychology Discussion
        • Conquering Nature
        • Conquering Nature Discussion
        • Pro Poor Water
        • Pro Poor Water Discussion
        • Arctic Socio-Ecology
        • Indigenous Knowledge
        • Earth Stewardship
        • Earth Stewardship Discussion
        • Global Climate Change
        • Global Climate Change Discussion
        • Coastal Zone in Crisis
        • Coastal Zone Crisis Discussion
        • Course Review
      • Readings
      • Instructor
      • Classroom Behavior
      • Grading Policy
      • Movie Logs
      • Discussion Activities
      • Expository Essay
      • Study Guide
      • Online TA Help
    • ESM 125: River Conservation
      • Syllabus
        • River Conservation Introduction
        • Navigability For Title - Law
        • River Segmentation
        • Historical Hydrology
        • Indigenous River Conservation
        • Habitat Conservation Law
        • Aquatic Habitat
        • Riparian Habitat
        • Water Temperature
        • Sediment Sampling
        • Water Quality
        • CA State Water Boards
        • Biological Opinions
        • Setting Biological Goals
        • County-Level Water Management
        • River Restoration
        • Fish Passage & Fishways
        • Beaver-Assisted Restoration
        • Water Management Lessons
      • Instructor
      • Grading Policy
      • Readings
      • Exams
      • Individual Assignments
      • River Presentations
      • Video Response Canvas Quizzes
      • Reading Response Canvas Quizzes
    • HYD 143 : Ecohydrology
      • Instructor
      • Grading Policy
      • Syllabus
        • Chapter 1
        • Chapter 2
        • Chapter 3
        • Chapter 4
        • Chapter 5
        • Group Activity 1
        • Group Presentations 1
        • Chapter 6
        • Chapter 7
        • Chapter 8
        • Chapter 9
        • Group Activity 2
        • Group Presentations 2
        • Chapter 10
        • Chapter 11
        • Chapter 12
        • Chapter 13
        • Chapter 14
        • Chapter 15
        • Group Activity 3
        • Group Presentations 3
        • Chapter 16
        • Chapter 17
        • Chapter 18
        • Chapter 19
        • Chapter 20
        • Chapter 21
      • Online TA Help
      • Video Response Quizzes
      • Group Presentations
      • In-class Assignments
    • HYD 151 : Field Methods in Hydrology
      • Instructor
      • TA Info
      • Grading Policy
      • Syllabus
        • Chapter 21
        • Chapter 1
        • Chapter 2
        • Chapter 3
        • Chapter 4
        • Assignment 1
        • Chapter 5
        • Chapter 6
        • Assignment 2
        • Chapter 7
        • Chapter 8
        • Chapter 9
        • Assignment 3
        • Chapter 10
        • Chapter 12
        • Chapter 11
        • Chapter 13
        • Chapter 14
        • Assignment 4
        • Chapter 15
        • Chapter 16
        • Chapter 16b
        • Chapter 17
        • Field Equipment Showcase
        • Chapter 18
        • Chapter 19
        • Chapter 20
        • Chapter 22
        • Chapter 23
        • Chapter 24
        • Course Review
      • Readings
      • Online TA Help
      • Field Safety
    • HYD 252: Hillslope Geomorphology and Sediment Budgets
      • Instructor
      • Grading Policy
      • Syllabus
        • Week 1
        • Week 2
        • Week 3
        • Week 5
        • Week 6
        • Week 7
        • Week 8
        • Week 9
        • Week 10
        • Week 4
      • Readings
      • Safety
    • HYD 254Y: Ecohydraulics
      • Instructor
      • Grading Policy
      • Syllabus
        • Introduction to Near-Census River Science
        • Introduction to 2D Modeling
        • 2D Modeling Training
        • 2D modeling discussion & synthesis
        • 2D Modeling Terrain Variability
        • 2D Model Validation
        • Fluvial Landform Assessment
        • Ecological Analysis of Structure and Function
        • Hydrogeomorphic Processes
        • Parameterizing Boundary Roughness
        • Frontiers of River Science
      • Readings
      • Online TA Help
      • Lab Tutorials
    • HYD 256: Geomorphology of Estuaries and Deltas
      • Syllabus
        • Week 1
        • Week 2
        • Week 3
        • Week 4
        • Week 5
        • Week 6
        • Week 7
        • Week 8
        • Week 9
        • Week 10
      • Readings
      • Lab
      • Field Safety
      • Online TA Help
      • Grading Policy
    • Virtual River Methods
      • Syllabus
      • Instructor
      • Grading Policy
      • Readings
      • Assignments
      • Game Setup
  • People
    • MS Students
    • PhD Students
    • Postdocs
    • Committee Advisees
    • Technicians
    • Undergrads
    • Visitors
    • Collaborators
    • Furry Friends
  • Info for Applicants
  • Service
    • Past Service
    • Professional Service
  • Outreach
  • Curriculum Vitae

GET IN TOUCH

  • 223 Veihmeyer Hall
    LAWR Dept., UC Davis
    One Shields Avenue
    Davis, CA 95616
  • (530) 302-5658
  • (530) 752-1552
  • gpast@ucdavis.edu
  • Google Scholar
  • Research Gate
  • ORCID: 0000-0002-1977-4175
  • Dr. Gregory B. Pasternack - Watershed Hydrology, Geomorphology, and Ecohydraulics
UC Davis