ClearSky:  status and near-term objectives
Download
1 / 9

ClearSky: status and near-term objectives - PowerPoint PPT Presentation


  • 64 Views
  • Uploaded on

ClearSky: status and near-term objectives. Joe Vaughan Charleston Ramos Brian Lamb. Topics. ClearSky Plume Rise Field Studies Ensemble Effort Current Efforts Culture of Use Task 2 assessment NASA ROSES. ClearSky Plume Rise Field Study. Objective: Evaluate CALPUFF plume rise

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' ClearSky: status and near-term objectives' - vielka-cline


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

ClearSky: status and near-term objectives

Joe Vaughan

Charleston Ramos

Brian Lamb


Topics
Topics

ClearSky

  • Plume Rise Field Studies

  • Ensemble Effort

  • Current Efforts

  • Culture of Use

  • Task 2 assessment

  • NASA ROSES


Clearsky plume rise field study
ClearSky Plume Rise Field Study

  • Objective: Evaluate CALPUFF plume rise

    • Measure top of plume height

    • Collect meteorological data

    • Document burns visually (Photographs)

  • Methods

    • Aircraft measurements

    • Ground-based measurements

    • CALPUFF reruns


Field burn overview
Field Burn Overview

  • 76 to 122 Acres

  • Wheat Stubble & Kentucky Bluegrass


Final results
Final Results

2 underestimated plume height, slightly

2 - 3 overestimated plume height

Newer emission parameters increase plume rise


Clearsky evaluation
ClearSky Evaluation

  • 2003 ClearSky Evaluation (Jain, 2004):

    • ClearSky is highly sensitive to Wind Speed & Wind Direction

    • Small differences in wind direction determine whether or not smoke plumes are predicted to affect an air quality monitoring station

    • How to represent the uncertainty coming from the meteorological conditions?

This motivated an Ensemble experiment! Heitkamp found that 12-km ECS was slightly better than 4-km original system. So, what about a 4-km ensemble?


Culture of use most probable results
Culture of Use? ‘Most probable’ results?


Current effort 3 d calpuff windrose graphics interested to do more with 1 km clearsky

Current effort: 3-D CALPUFF Windrose graphicsInterested to do more with 1-km ClearSky…

ECY Contract Task 2 Assessment:How to get ClearSky ag-burning results into the regional PM results?

ClearSky and its use don’t necessarily provide realistic ag-burning emissions, nor PM2.5 results!

So we’ve proposed a 2004 burn season re-analysis to build met-forecast driven inference rules for ag-burning emissions for AIRPACT.


NASA ROSES

Applied Sciences Program Approach to Integrated System Solutions for

A Comprehensive Regional Air-Quality Decision Support System for the Pacific Northwest


ad