i DigBio Train the Trainers 2 Georeferencing Workshop Gainesville, FL 12-16, Aug 2013
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Transcript of i DigBio Train the Trainers 2 Georeferencing Workshop Gainesville, FL 12-16, Aug 2013
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iDigBio Train the Trainers 2 Georeferencing WorkshopGainesville, FL 12-16, Aug 2013
FishNet Workflow for Large Scale Collaborative Georeferencing
Nelson [email protected]
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History1999: Creation of original FishNet Network
Z39.50 protocol for sharing data
Search via Species Analyst (distributed query model)
2005: FishNet 2 created
Search via DiGIR Portal (distributed query model)
Harvesting of DiGIR, DwCA, IPT, Static Spreadsheets
Search via FishNet 2 Portal (centralized query model)
2010: FishNet 2 (centralized query model)
Transition to DiGIR Protocol
2012-2016: Portal & data expansion and enhancement
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Global network of fish collections
71 data providers
3.7 million lots
35+ million specimens
57% georeferenced
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Current Activity
To expand the number of records within FishNet to approximately 4 million lots representing over 30 million specimens To georeference all "georeferencable" records lacking geographic coordinates
To repatriate results to source data providers
321,102 collecting events representing 1,568,695 specimen lots have been identified for georeferencing from FishNet2
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Georeferencing FishNet• 250,000 collecting events• 18 months• 12 technicians• 5+ volunteers• GEOLocate• Collaborative
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The Dirty Dozen
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Preliminary Assignments
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Leveraging Existing Technology and Expertise
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Workflow: Integrating API’s
pre-georeference, assess verification difficulty, identify problematic
records
produce datasets for CoGe based on institution and anticipated difficulty of
verification
Assig
n w
orkl
oads
by
insti
tutio
n,
diffi
culty
& re
gion
final review of results
repatriate
clean data, add to locality
gazetteer & match against
locality gazetteer
verify, correct & annotate
data providers
http://geolocate.fishnet2.net/workflow.html
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i. Point
i. Point ii. Radius
i. Pointii. Radiusiii. Polygon
Measuring Uncertainty
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Georeferencing Output
Base Map - 1:2M 8-Digit HUCs
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11 January - 12 June 2013 Stats
• 90,301 total locality verifications• 6,009 verifications were re-evaluations
• 73,639 corrected – 36,549 associated with polygons
• 10,653 skipped
• Total: 84,292 localities “completed”
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Georeferencing Efficiency
11 January – 12 June 2013
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 230
1000
2000
3000
4000
5000
6000
Week Number
No.
Loca
lities
Com
plet
ed
excluding volunteer data
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Georeferencing Status
11 January – 12 June 2013
366K Specimens / 84K Localities / 6 Months