Storm Damage Assessment Protocol Data Collection and Reporting.
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Transcript of Storm Damage Assessment Protocol Data Collection and Reporting.
Storm Damage Assessment
ProtocolData Collection and Reporting
Overview
Data Collection Estimating Engine Report Means Storm Damage
Brochure
Overview: Pre-storm setup
Create random sampleBefore emergency! Use electronic or manual means
Measure tree density and size classWithin ROWAlso 50’ back from ROW edge
Take final steps Pre-Storm report form: useful estimate Storage for future use
Overview: Post-storm work Revisit sample segmentsDebris: choose estimation method
Indirect by average crown loss class 0-25%, 26-50%, etc. Loss category images available
from FS All trees within 50’ of ROW
Direct as CY of debris
Only trees within ROWHazard pruning by size classHazard removal by size class
Enter data, report results
Validity from random samplingGeneral discussion earlierStorm type factorTested for ice storms
Low variance 2% sample got within 5% of true
value in field testNot tested for wind storms
Larger varianceMay affect required sample size
Area of ongoing i-Tree research
Data Collection
Paper formsIn disaster work, good reason to keep paper as optionElectricity not a concernDamage possibility minimalReduces training needed
Forms for many different situations
In Manual, also can be downloaded from website
Manual data entry
Easiest to use Excel’s entry formHighlight top row of
headersOn menu, click
Data Form
Can also just start typing at cell A1
Software: desktop interface
Management of data and applicationsSimple, intuitivePlaces field data directly into template
SDAP Interface
Software: PDA applicationInstalled on handheld through Start menu
Data uploaded automatically during synchronization
Time to Make Believe!
Estimating Engine
SpreadsheetEstimator built as Excel® spreadsheet6 worksheets
Home/ReadMe – navigation, helpPreStorm Data – setup dataPreStorm Analysis – preliminary analysisPostStorm Data – damage dataPostStorm Analysis – report formCodes, lookup tables – functional elements
Use of Excel® based on user survey
Hyperlinks for easy
navigation
Report Means
Procedure
EstimationStarts with field data Uses local costsScales up with simple formulas
Calculation page = reportCredibility Ease, speed
Validation
Sampling indicated on reportMeans of random samplingPercent of street miles sampled
Numbers derived right on sheetDebris Pruning, removal
Local costs shown
These values can be adjusted by end user
Back to SDAP Interface