Vertical Coordinates and Nesting

Slides:

Advertisements

Similar presentations

Meteorologisches Institut der Universität München

Advertisements

Q2-1.1a Graphing Data on the coordinate plane

NOAA/NWS Change to WRF 13 June What’s Happening? WRF replaces the eta as the NAM –NAM is the North American Mesoscale “timeslot” or “Model Run”

Section 1.1 The Distance and Midpoint Formulas. x axis y axis origin Rectangular or Cartesian Coordinate System.

x y First we look at how far up the point is, this is on the vertical Y axis. HORIZONTAL VERTICALVERTICAL.

For the Lesson: Eta Characteristics, Biases, and Usage December 1998 ETA-32 MODEL CHARACTERISTICS.

Eta Model. Hybrid and Eta Coordinates ground MSL ground Pressure domain Sigma domain  = 0  = 1  = 1 Ptop  = 0.

Nesting. Eta Model Hybrid and Eta Coordinates ground MSL ground Pressure domain Sigma domain  = 0  = 1  = 1 Ptop  = 0.

Rapid Update Cycle Model William Sachman and Steven Earle ESC452 - Spring 2006.

Simulations nocturnes stables à mésoéchelle pour des bassins aux latitudes moyennes J.Cuxart and M.A. Jiménez Universitat de les Illes Balears 4th Meso-NH.

Cartesian Coordinate System Mathematics often display relations by using a grid system called the Cartesian Coordinate System.

Nesting. Eta Model Eta Coordinate And Step Mountains MSL ground  = 1 Ptop  = 0.

Introduction to Running the WRF in LES Mode Jeff Massey April 1, 2014 University of Utah WRF Users Group.

Higher Resolution Operational Models. Operational Mesoscale Model History Early: LFM, NGM (history) Eta (mainly history) MM5: Still used by some, but.

AGBell -1- Build the A Train Constellation using STK To build the “ideal” A Train constellation we will use STK - Satellite Tool Kit by AGI Next we will.

Higher Resolution Operational Models. Major U.S. High-Resolution Mesoscale Models (all non-hydrostatic ) WRF-ARW (developed at NCAR) NMM-B (developed.

Where are you? What is this called? A COORDINATE GRID.

Section The Polar Coordinate System The keys……

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.

Seasonal Modeling of the Export of Pollutants from North America using the Multiscale Air Quality Simulation Platform (MAQSIP) Adel Hanna, 1 Rohit Mathur,

© Crown copyright Met Office Downscaling ability of the HadRM3P model over North America Wilfran Moufouma-Okia and Richard Jones.

NOAA Global Modeling Workshop January 2006NOAA/ESRL FIM Contribution toward future NOAA global modeling system Developed at ESRL, collaboration so.

NCAS Unified Model Introduction Part 4b: UM Limited Area Models University of Reading, 3-5 December 2014.

Section The Polar Coordinate System.

Higher Resolution Operational Models

Some preliminary FIM results DCMIP workshop July/August 2012 Boulder, CO.

March 2014 UM Limited Area Models What constitutes a LAM How to set one up in the UM How to start a LAM How to keep a LAM going Nesting LAMS Cascade example.

Computer Graphics Lecture 3 Computer Graphics Hardware

4k… 4K format was named because it has 4000 pixels horizontal resolution approximately. Meanwhile, standard 1080p and 720p resolutions were named because.

Drawing Longitudinal & Cross Sections

Rapid Update Cycle-RUC

Grid Point Models Surface Data.

Introduction to Algorithms

Longitude & Latitude Grid Maps.

Introduction to Coordinate Grid

Derivative of a Function

2-1 Relations and Functions

ATOC 4720 class31 1. Coordinate systems 2. Forces.

MODEL WIND FIELD COMPARE WITH HRD WIND FIELD

Rectangular Coordinates;

Mapping Earth’s Surface

GFS and Global Models.

Update on the Northwest Regional Modeling System 2017

Bitmap, Vector, Pixels, Resolution, Metadata.

Forecast Pressure.

VERTICAL LINE TEST GRAPHS can represent functions.

Forecast Pressure.

Derivative of a Function

Maps!!! Who doesn’t love a gorgeous map?

Global Forecast System (GFS) Model

Warm-Up Draw a diagram that shows the resolution of each vector into its rectangular components. Then find the magnitudes of the vector’s horizontal and.

Model Vertical Coordinates and Levels and Nesting

The Distance and Midpoint Formulas

Multiplication Grids.

September 30, 2011 At the end of today, you will be able to: Analyze and graph relations. Find functional values. Warm-up: Evaluate the expression if:

Objective - To graph ordered pairs.

Global Forecast System (GFS) Model

Global Forecast System (GFS) Model

Functions and Graphing

High Resolution regional reanalysis from a Mars GCM and MM

Global Forecast System (GFS) Model

The Distance and Midpoint Formulas

Ratio and Proportion Vocabulary.

5. f(n) = -2n – n for f(-3) and f(4)

Derivative of a Function

Division Grids.

Global Forecast System (GFS) Model

WHERE DO I GO?.

1-5: Learning Goals Download for free at openupresources.org.

Presentation transcript:

Vertical Coordinates and Nesting

Vertical Coordinate Systems Originally p and z: but they had a problem…BC when the grid hit terrain! Then eta, sigma p and sigma z, theta Increasingly use of hybrids– e.g., sigma-theta

Sigma

Sigma-Theta

Hybrid and Eta Coordinates Ptop Ptop  = 0 Pressure domain  = 0 Sigma domain ground  = 1 ground  = 1 MSL

Horizontal resolution of 12 km 12-km terrain

Nesting

Why Nesting? Could run a model over the whole globe, but that would require large amounts of computational resource, particularly if done at high resolution. Alternative is to only use high resolution where you need it…nesting is one approach. In nesting, a small higher resolution domain is embedded with a larger, lower-resolution domain.

Nesting Can be one-way or two way. In the future, there will be adaptive nests that will put more resolution where it is needed. And instead of rectangular grids, other shapes can be used.