Transcript ExtensionsToCATTPPT

Project Extension Proposal to MANE_VU:
Extensions to the CATT Analysis Tool
Proposal Text
The goal of this web-based tool is to facilitate receptor-oriented air mass transport analysis.
CATT uses pre-calculated back-trajectories and various speciated aerosol data as inputs.
The tool produces maps of airmass origins for specified locations and aerosol conditions.
The CATT airmass analysis tool is intended for use by the RPO analyst community.
The specific CATT extensions in this sub-project include:
1. Flexible connectivity to chemical datasets, especially to VIEWS
2. Flexible import of pre-calculated back-trajectory data
3. Implementation of several chemical filtering and trajectory aggregation algorithms
4. Spatial interpolation and rendering (contouring) of point data
5. CATT server hardware and software installation and maintenance
R. Husar, PI, CAPITA
Revised, October 20, 2003
CATT - Background
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The Visibility Information Exchange Web System (VIEWS) is an RPO-supported
online system for visibility-related data operated at CIRA, Colorado State U.,
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The proposed Combined Aerosol Trajectory Tool (CATT), is a receptor-oriented
analysis package that aggregates back-trajectories for selected receptor site(s) and
for specific chemical conditions, such as hi/low sulfate. CATT uses the VIEWS
database as the primary source of chemical data and a pre-computed trajectory
database for the selective trajectory aggregations.
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The resulting airmass transport/residence time pattern indicates the geographic
transport regions associated with the selected chemical conditions. The CATT
web-tool will be suitable for use by the RPO analyst community requiring only a
web browser.
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This project phase consist of following specific tasks:
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Connect the current CATT tool to the VIEWS aerosol chemistry database;
Implement a gridding module for spatial interpolation of point data and contour displays
Implement support for the superposition/display of multiple GIS map layers
Maintenance of the CATT web server for one year.
CATT Extension 1: VIEWS and other Aerosol Datasets
Background:
A combined aerosol trajectory aggregation tool, CATT, has been developed for easy aggregation
and browsing of airmass histories associated with specific aerosol conditions. The CATT tool,
is now supported (MANEVU/MRPO) for 16 stations and for pre-calculated residence times.
Proposal:
We propose to extend the CATT tool by allowing the use of the entire VIEWS chemical database and
other remotely accessible datasets to set the aerosol filter conditions.
Implementation and Status:
The technologies or remotely accessing the VIEWS and other databases and performing chemical
filtering queries to VIEWS has been tested for feasibility. This extension to CATT has was
option on the Phase II contract but funds were not available. Husar will lead this effort in close
cooperation with B. Schichtel of CIRA/VIEWS.
Deliverables:
The main deliverable of this sub-project is a fully functioning CATT aerosol transport analysis tool
applicable to the entire VIEWS database as well as to other chemical/trajectory data pairs.
Extending CATT to VIEWS
Current MANEVU/MRPO Project
Prepared by
Battelle and Sonoma Tech. Inc.
Proposed Extension to VIEWS
‘On the fly trajectory aggregation for
150+ VIEWS sites (supported by
EPA- CATT-TAT)
16 sites
180+ VIEWS sites over the
entire US; 100+ ‘species’
Typical Source Profiles
15 ‘species’
CATT Tool Implementation
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Further information about CATT
is available , including tesing.
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The tool displays the incremental
transport probability for specified
query conditions
Query Conditions
Combined Aerosol Trajectory Tool - CATT
CATT Extension 2: Trajectory Data Connectivity
Background:
The extended CATT tool should be applicable to an evolving list of datasets. Each new dataset
consists of an aerosol monitoring dataset and a companion trajectory dataset. Thus, for each
new CATT dataset, the trajectory data will be submitted to the CATT system separately.
Proposal:
We propose the development of a procedure for easy import of pre-computed trajectory data into the
CATT trajectory database. At a minimum, the trajectory import facility will include ATA and
HYSPLIT trajectory formats.
Implementation and Status:
The trajectory import facility does not exists. In the past, trajectory import to CATT was executed
through special one-of-a kind program. The new, semi-automated import facility will facilitate
data transfer through FTP and subsequent import to CATT. The task will be executed by the
CAPITA database/network manager.
Deliverables:
The main deliverable of this sub-project is a functioning import facility for ATAD and HYSPLIT and
possibly other data formats. CAPITA commits itself to import at least 4 trajectory datasets.
CATT Extension 3: Filtering and Aggregation Algorithms
Background:
CATT is an exploratory tool to examine the relationship between aerosol pattern and the associated
transport conditions. An n evolving set of algorithms that evaluates that relationship.
Proposal:
We propose to develop a flexible framework for adding new aerosol filtering and trajectory
aggregation algorithms. The initial algorithms will include, incremental probability, residence
time ratio, aerosol-weighed residence time, trajectory clustering, followed by emerging new
algorithms. Some schemes will be implemented in multi-receptor mode.
Implementation and Status:
Currently, the incremental probability and residence time ratio algorithms are implanted in the
CATT tool.
Deliverables:
Extension 3 of the CATT toll will implement the aerosol-weighed residence time, trajectory
clustering algorithms. At least two additional new filtering/aggregation schemes will be added
to the tool.
CATT Extension 4: Spatial Interpolation and Rendering
Background:
A tool for transforming point measurement data to a continuous surface would aid the analysis
of CATT transport as well as VIEWS chemical data. In particular, gridding/contouring will
allow comparison with other data from monitoring, emissions, satellite as well as with
model results/
Proposal:
We propose to incorporate spatial interpolation and rendering facilities into the CATT tool. The
Gridder/Contourer tool will be applicable to the spatial datasets from CATT, VIEWS as well
as other spatial point data.
Implementation and Status:
The gridder/contourer technology has been developed at CAPITA over the past 15 years. Stefan
Falke, who did his PhD dissertation on spatial interpolation will lead the effort.
Deliverables:
The deliverable of this sub-task is is a web-based Gridder/Contourer incorporated in CATT. The
outputs from the Gridder/Contour will be suitable for import into GIS and other
processing/rendering software.
Spatial Interpolation and Rendering
Site Code
1534
1538
1535
1540
108
107
1142
1135
1137
1143
102
1144
1138
1140
88
89
2388
2380
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2393
2397
83
2410
2394
Lat
Lon
21.3291
21.3966
21.3102
20.7808
20.8086
19.4309
61.533
61.2066
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61.5341
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63.7258
64.8411
58.3592
41.56
42.5519
42.4319
44.5883
44.6156
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43.8338
44.9432
48.0065
45.5182
44.0538
-158.093
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-150.25
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-124.059
-123.346
-123.274
-123.092
-123.084
-123.035
-123.006
-122.973
-122.967
-122.938
VALUE
Spatial Interpolation Settings
4.60
4.10
4.00
6.50
4.09
2.78
4.90
5.10
5.90
5.40
4.56
5.80
7.40
5.20
Point Rendering
PM25 Conc.
6.75
8.70
6.10
7.20
9.00
8.80
7.80
5.70
9.30
The spatial interpolation operator transforms a data
table to a gridded map using nearby measurement data.
The gridding and contouring of the selected data is
done ‘on the fly’ by the user
Contour Rendering
Grid PM25
PM25 Conc.
Interpolate
Gridding: Accounting for Data Density
The advanced spatial interpolation algorithm accounts for the variations in
point data density inherent in air quality monitoring networks.
The resulting interpolated estimates are more representative of the urban
and rural differences in air pollutant concentrations.
Low Point Data Density
High Point Data Density
Rendering: Rectangular, Contour, Lines
A flexible display rendering of gridded data will be implemented to accommodate
different applications.
The flexibility enables clearer presentation and easier comparison with other data.
Rectangular Grid Cells
Contoured Grid Cells
Contoured Grid Lines
CATT Extension 5: CATT Server Maintenance
Background:
The web-based CATT tool needs to reside on a web server, consisting of three parts: (1) SQL
server that manages the relational database for chemical and trajectory data (MS SQL Server);
(2) General-purpose web server to respond to HTTP queries (MS IIS); (3) CATT analysis server
for the computation and presentation of CATT analysis.
Proposal:
This task covers the installation and maintenance of the CATT web-delivery delivery system (SQL
Server, Web Server, CATT Server) for one year.
Implementation and Status:
The server hardware and software used in Phase II CATT project is currently operational. For this
CATT- extension, all 3 servers will be upgraded to some extent, including the hardware. The
CATT system will be maintained by Kari Hojarvi at CAPITA..
Deliverables:
A web-based CATT tool will be upgraded, installed and maintained for one year by CAPITA staff.
CATT Server Hardware and VIEWS Connectivity
Auxiliary Data
VOYGER Browser
CAPITA Server
Data Replication
CATT server
connected to CIRA and
CAPITA
VIEWS &
Auxiliary
Data
CATT
Data Replication
Software
Replication
Analysis & Aux. Data Viewer
Analysis
Tools &
Delivery
Analysis Server
VIEWS Viewer
CIRA Server
VIEWS
Data
VIEWS
Business Logic
Budget and Schedule by Task
1.
Chemical data connectivity
$15K
Nov 1, 2003 – Jan 1, 2004
2.
Trajectory data connectivity
$15K
Nov 1, 2003 – Mar 1, 2004
3.
Filtering and aggregation algorithms
$20K
Jan 1, 2003 –Oct 31, 2004
4.
Spatial interpolation (gridding) tool
$10K
Nov 1, 2003 – Jan 1, 2004
5.
Server software and maintenance
$15K
Feb 1, 2004 – Oct 31, 2004