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STRATUM Data Collection and Analysis: Baltimore. Baltimore’s 2007 Sample Survey Background...
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Transcript of STRATUM Data Collection and Analysis: Baltimore. Baltimore’s 2007 Sample Survey Background...
STRATUM Data Collection and Analysis: Baltimore
Baltimore’s 2007 Sample Survey
Background TreeBaltimore Why a survey? Why a sample? Why iTree?
Baltimore’s 2007 Sample Survey
Partners & Division of Labor Baltimore City Department of Recreation & Parks
(TreeBaltimore & Forestry) Training & equipment
Baltimore City Department of Planning Technical, data review, QA/QC
Parks & People Foundation Volunteer management & project logistics
Baltimore’s 2007 Sample Survey
Timeline Planning began in April Training occurred in June Surveying occurred throughout July QA/QC began mid-way through
surveying and is wrapping up now
Baltimore’s 2007 Sample Survey
Survey Structure Random selection of 500 sample blocks
PDA vs. Paper Paper option served as a backup
Using in concert with a GPS in the field No benefit when sampling
Baltimore’s 2007 Sample Survey
Logistical Structure City divided into five sections Volunteers put in groups of two or three
Partners changed frequently Schedules produced on a weekly basis Parks & People office was the hub for volunteer
check in and out
Working With Volunteers
Pools of interested volunteers Utilized contact and distribution lists of
all partners Expectations and time commitments Volunteer expertise
Tree Identification PDAs Knowledge of Baltimore streets
Working With Volunteers
Training Four hour training prior to surveying Some additions/revisions added Could have had more extensive
mentoring during beginning of survey period
Volunteer support materials
Analysis
Data Quality As function of training QA/QC during and after data collection
Inputting data into STRATUM
Lessons Learned
Things you won’t find in the manual Logistics Weather concerns Safety iTree database setup
Lessons Learned
Lessons Learned The danger of the two sided dbh tape Spend more time on design & planning Be in touch w/volunteers in the field Start QA/QC early No need for dividing city into sections Better tracking of block assignments for QA/QC Pre-testing, pre-testing, pre-testing
Helpful Hints
Some helpful tips T-shirts – good to have something to identify
surveyors Equip surveyors with info about project Prioritize what information needs to be collected Plan to complete more surveying than needed Thank your volunteers!