Lecture 4 Weather Maps and Models Chapters 3 and 4.

Slides:

Advertisements

Similar presentations

How does energy transfer through our atmosphere?

Advertisements

Weather Forecasts Chapter 12, section 3.

Section 12.4 – Weather Analysis and Prediction

8.10 Weather Forecasts Objectives:

RAMS/BRAMS Basic equations and some numerical issues.

(Mt/Ag/EnSc/EnSt 404/504 - Global Change) Climate Models (from IPCC WG-I, Chapter 8) Climate Models Primary Source: IPCC WG-I Chapter 8 - Climate Models.

Chap. 3 - Weather maps. Surface station model Use on surface maps Shows the following: 1.Temperature 2.Dew point temperature 3.Significant weather 4.Pressure.

DIFAX Maps / Upper Air Charts

Chapter 8 Coordinate Systems.

Chapter 7 Atmospheric Pressure and Wind

Supplemental Topic Weather Analysis and Forecasting.

MET 61 1 MET 61 Introduction to Meteorology MET 61 Introduction to Meteorology - Lecture 4 “Heat in the atmosphere” Dr. Eugene Cordero San Jose State University.

Lecture 1.3 – Structure of the Atmosphere. Today – we answer the following: How big is that atmosphere? Why is it like a cake? Why is cold in Denver?

* Reading Assignments: All sections of Chapter 5.

* Reading Assignments:

AOS 100 Lecture 3 Atmospheric Variables Chapter 1 Homework #1 Due September 19, 2014 TYU Ch1: 3,4,5,8,11,13,16,19; TYPSS Ch 1: 1 TYU Ch 2: 1,2,6,9,13,16,20,22,23,25;

NUMERICAL WEATHER PREDICTION K. Lagouvardos-V. Kotroni Institute of Environmental Research National Observatory of Athens NUMERICAL WEATHER PREDICTION.

Lecture Oct 18. Today’s lecture Quiz returned on Monday –See Lis if you didn’t get yours –Quiz average 7.5 STD 2 Review from Monday –Calculate speed of.

DIFAX Maps Weather maps generated by the NWS Before the Internet or AWIPS, these were the basic weather analysis and forecast charts used by meteorologists.

– Equations / variables – Vertical coordinate – Terrain representation – Grid staggering – Time integration scheme – Advection scheme – Boundary conditions.

Chapter 9: Weather forecasting Acquisition of weather information Acquisition of weather information Weather forecasting tools Weather forecasting tools.

Lecture 5 (10/07) METR 1111 Isolining and Upper Air Maps.

– Equations / variables – Vertical coordinate – Terrain representation – Grid staggering – Time integration scheme – Advection scheme – Boundary conditions.

What is a Climate Model?.

NATS 101 Section 13: Lecture 24 Weather Forecasting Part I.

METR February Review State variables: p, ρ, T Pressure Temperature Equation of state: p = NkT/V = ρ R d T Virtual temperature T v = T (1.

Weather Maps and Atmospheric Effects. Fronts Humidity.

Chapter 1 Properties of the Atmosphere How is the atmosphere characterized?

Class #32: Monday, March 301 Weather Forecasting (continued)

Weather Forecasting Chapter 9 Dr. Craig Clements SJSU Met 10.

Classroom use of web- sourced weather maps Mark Powers Vergennes Union High School

AOSS 401, Fall 2006 Lecture 9 September 26, 2007 Richard B. Rood (Room 2525, SRB) Derek Posselt (Room 2517D, SRB)

Chapter 1 Functions and Their Graphs. Warm Up 1.6  A high-altitude spherical weather balloon expands as it rises due to the drop in atmospheric pressure.

Weather Chapter 21 1.

Weather Review. Air Masses Air Mass – A large body of air through which temperature and moisture are the same. Types 1. Continental – formed over land.

Lecture 5 Weather Maps and Models Chapters 5 and Chapter 6 Homework Due Friday, October 3, 2014 TYU Ch 6: 1,2,5,7,11,14,17,18,20; TYPSS Ch 6: 2 TYU Ch.

State of the Atmosphere SWBAT describe the various properties of the atmosphere and how they interact; explain why atmospheric properties change with the.

 The state of the atmosphere at a specific time and a specific place.

Module 6 MM5: Overview William J. Gutowski, Jr. Iowa State University.

Forecasts Unit 7 Day 5. Science Starter! 1)How do air masses interact at a warm front and what type of weather results? 2)How do air masses interact at.

16.3 Weather Forecasts.

Weather Forecasting Subtitle.

UNIT 1: Weather Dynamics

Numerical Weather Prediction (NWP): The basics Mathematical computer models that predict the weather Contain the 7 fundamental equations of meteorology.

Unit 4 Lesson 5 Notes Answer Key

Water Cycle, Cloud Formation, and Severe Weather.

Regional Weather and Climate Modeling:

SCIENCE NEWS The eruption of Mt. Redoubt

Meteorology Basics Lecture Science 2201 (chapter 18)

Technology on the Cutting Edge of Weather Research and Forecasting

Properties of the Atmosphere

Wind fields can e.g. be calculated using the so-called momentum equations which are based on the Navier Stokes equations. But this is complicated mathematics.

ATOC 4720 class31 1. Coordinate systems 2. Forces.

Atmosphere & Weather Review

Severe Weather Weather describes the conditions in the atmosphere in an area over a short period of time. Weather that is extreme and outside of normal.

Section 4: Weather Analysis and Prediction

EXPONENTIAL FUNCTIONS

Modeling the Atmos.-Ocean System

E.7.9A.1, E.7.9A.2, E.79A.3 Weather.

Section 4: Weather Analysis and Prediction

AOSS 401, Fall 2013 Lecture 4 Material Derivative September 12, 2013

NATS 101 Lecture 3 Climate and Weather

Weather Forecasts.

Weather Forecasts.

Due tomorrow before class starts: Definition of all vocab words in Chapter 11, Section 2 Temperature Versus Heat Skip about 4-5 lines in-between each.

Unit 2: “Earth and Space Science”

Unit 2: “Earth and Space Science”

Do Now Predict why weather could be different on the front side of a mountain (windward) than on the back side of the mountain (Leeward). Explain.

Presentation transcript:

Lecture 4 Weather Maps and Models Chapters 3 and 4

Homework Due Friday, September 22, 2006 (add to previous homework) Ch 4 TYU 2,6,9,12,14,17,18,23,25 TYPSS #2

Meteograms Display state variables graphically over a period of time. AOS rooftop site:

Surface Station Model

Weather Symbols

Surface Maps Station Plots Dew point analysis MSLP analysis (mean sea level pressure) Temperature analysis

Upper Air Station Plot Upper air charts

Upper Air chart (Constant pressure surface) Upper air charts

Forecasting Weather

Weather Models Mathematical equations describe how: –Air accelerates or decelerates based on Newton’s Laws –Mass of air and its properties move from one position to another while conserving properties of mass and energy –Mass of water vapor is moved and transformed to rain and snow –Air is heated or cooling by condensation, radiation These differential equations are integrated forward in time by solving them numerically on a grid

Two Basic types of Models Finite Difference Model –Solved on a grid –Taylor series approximations to continuous equations Spectral Model –Analysis of variables on a grid in real space is transformed to a grid in wave space grid using a Fourier transform –Equations moved forward in wave space analytically –Variables transformed back to real space

Examples of Horizontal Grids

Vertical Grid Vertical grid may be : Height coordinate Pressure coordinate Sigma or terrain following coordinate

Map Projection Various map projections are used to take into account the curved Earth surface. For instance: 1.Mercator projection 2.Polar Stereographic Grid 3.Lambert Conformal 4.Spherical Grid

Topography Representation

Ensemble Prediction

Look at AOS Web Page Real Time analysis and Prediction available on the Web: Weather Maps (Current and Forecast Maps): (Maps drawn by UW AOS Department) (Tripoli’s NMS Model output) (National Weather Service Maps) (Unisys (Purdue) Maps….traditional leader in Internet map technology) (Penn State Electronic Maps) (NWS difax maps from SUNY Albany) (National Center for Atmospheric Research Weather) (Colorado weather by Henz)