BEGIN:VCALENDAR PRODID;X-RICAL-TZSOURCE=TZINFO:-//Calagator//EN CALSCALE:GREGORIAN X-WR-CALNAME:Calagator METHOD:PUBLISH VERSION:2.0 BEGIN:VTIMEZONE TZID;X-RICAL-TZSOURCE=TZINFO:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20240310T020000 RDATE:20240310T020000 RDATE:20250309T020000 RDATE:20260308T020000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20241103T020000 RDATE:20241103T020000 RDATE:20251102T020000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20240916T194634Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20240918T200000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20240918T183000 DTSTAMP;VALUE=DATE-TIME:20240916T194634Z LAST-MODIFIED;VALUE=DATE-TIME:20240916T194634Z UID:http://calagator.org/events/1250481310 DESCRIPTION:PDXOSGeo connects again this week\, Wednesday 9/18\, 6:30p Ho t Lips Pizza @ the Natural Capital Center 721 NW 9th Ave\, Portland OR. Join us for some chatter around AI in geospatial\, demos\, and learnings from the world of open source software for geo. \n\nTags: opensource gi s geospatial\n\nImported from: http://calagator.org/events/1250481310 URL:https://www.linkedin.com/feed/update/urn:li:activity:7241479815789174 786/ SUMMARY:PDXOSGeo September Meetup LOCATION:Ecotrust Building: 721 Northwest 9th Avenue\, Portland OR 97209 US SEQUENCE:1 END:VEVENT BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20250918T022719Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20250917T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20250917T183000 DTSTAMP;VALUE=DATE-TIME:20250918T022719Z LAST-MODIFIED;VALUE=DATE-TIME:20250918T035820Z UID:http://calagator.org/events/1250482208 DESCRIPTION:PDXOSGeo connects again this week\, Wednesday 9/17\, 6:30p Ho t Lips Pizza @ the Natural Capital Center 721 NW 9th Ave\, Portland OR. Join us for some show and tell and good ope geo-discussion!\n\nTags: ope nsource gis geospatial\n\nImported from: http://calagator.org/events/125 0482208 URL:https://pdxosgeo.org/ SUMMARY:PDXOSGeo September Meetup LOCATION:Ecotrust Building: 721 Northwest 9th Avenue\, Portland OR 97209 US SEQUENCE:5 END:VEVENT BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20250918T040028Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20251015T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20251015T183000 DTSTAMP;VALUE=DATE-TIME:20250918T040028Z LAST-MODIFIED;VALUE=DATE-TIME:20250918T040028Z UID:http://calagator.org/events/1250482209 DESCRIPTION:PDXOSGeo connects again this week\, Wednesday October 15th\, 6:30p Hot Lips Pizza @ the Natural Capital Center 721 NW 9th Ave\, Portl and OR. Join us for some show and tell and good open geo discussion! \;\n \;\nWe're striving to post our speaker a couple weeks in advance of the meeting\, so watch this space!\n\nTags: opensource gis geospatia l\n\nImported from: http://calagator.org/events/1250482209 URL:https://pdxosgeo.org/ SUMMARY:PDXOSGeo October Meetup LOCATION:Ecotrust Building: 721 Northwest 9th Avenue\, Portland OR 97209 US SEQUENCE:2 END:VEVENT BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20250918T040138Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20251210T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20251210T183000 DTSTAMP;VALUE=DATE-TIME:20250918T040138Z LAST-MODIFIED;VALUE=DATE-TIME:20251206T025541Z UID:http://calagator.org/events/1250482210 DESCRIPTION:Happy Holidays geo-nerds! \;\n \;\nPDXOSGeo connects ag ain this week\, Wednesday December 10th\, 6:30p Hot Lips Pizza @ the Nat ural Capital Center 721 NW 9th Ave\, Portland OR. Happy Holiday Season! Join us for the geo-year in review! Bring us your favorite maps/data vi sualizations/geo-tidbits from 2025! \;\n \;\nAs always\, there wi ll be Pizza! There may also be cookies! Holiday sweaters optional!\n\nTa gs: opensource gis geospatial\n\nImported from: http://calagator.org/eve nts/1250482210 URL:https://pdxosgeo.org/ SUMMARY:PDXOSGeo December Meetup - Geo-year in Review! LOCATION:Ecotrust Building: 721 Northwest 9th Avenue\, Portland OR 97209 US SEQUENCE:4 END:VEVENT BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20250918T040326Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20260128T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20260128T183000 DTSTAMP;VALUE=DATE-TIME:20250918T040326Z LAST-MODIFIED;VALUE=DATE-TIME:20260121T232853Z UID:http://calagator.org/events/1250482211 DESCRIPTION:Happy New Year geo-nerds! \;\n \;\nPDXOSGeo connects ag ain this week\, Wednesday Jan 28\, 6:30p Hot Lips Pizza @ the Natural Ca pital Center 721 NW 9th Ave\, Portland OR. Join us for some show and tel l and good open geo discussion! \;\n \;\nTopic for January: David Percy “Percy” has been doing research on applying Reconstructability Ana lysis (RA) to categorical raster datasets since 2012\, and is preparing to defend his dissertation on Spatial Reconstructability Analysis soon. RA is a form of machine learning that works exclusively with discrete da ta\, so categorical data such as the National Land Cover Database is a p erfect source of data for it. These NLCD data have been analyzed in atte mpts to predict forest dynamics (clearcuts)\, and wildfire size\, specif ically looking at how historical vegetation affects these outcomes. Resu lts will be presented that show how these data are useful in modeling fu ture events. All of the extraction for analysis was done in Python using open source GIS libraries Shapely and Rasterio. Code will be shared and discussed. \n\nTags: opensource gis geospatial\n\nImported from: http:/ /calagator.org/events/1250482211 URL:https://pdxosgeo.org/ SUMMARY:PDXOSGeo January Meetup LOCATION:Ecotrust Building: 721 Northwest 9th Avenue\, Portland OR 97209 US SEQUENCE:4 END:VEVENT BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20250918T041004Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20260225T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20260225T183000 DTSTAMP;VALUE=DATE-TIME:20250918T041004Z LAST-MODIFIED;VALUE=DATE-TIME:20260223T201231Z UID:http://calagator.org/events/1250482212 DESCRIPTION:PDXOSGeo connects again this week\, Wednesday February 25\, 6 :30p Hot Lips Pizza @ the Natural Capital Center 721 NW 9th Ave\, Portla nd OR. Join us for some show and tell and good open geo discussion! \ ;\n \;\nThis month we will be discussing Landslide Susceptibility Mod eling With Information Theory: The Terroir of Landslides\, with David Pe rcy\, aka "\;Percy"\;. Percy is preparing to defend his disserta tion on Spatial Reconstructability Analysis\, and led us in in a lively discussion in January. This month he will share another aspect of his wo rk on applying Reconstructability Analysis (RA) to categorical raster da tasets. \;\n \;\nRA is a form of machine learning algorithm (MLA) that works exclusively with discrete data\, so categorical data such as the variables in the SSURGO soils database\, the geologic database (DOG AMI)\, and land cover (NLCD) can be used as inputs in their native forma t without conversion to dummy variables\, as is typically done in other MLAs. \;\n \;\nFor his February demo\, Percy will show how these v ariables are used along with topographic data to model landslide suscept ibility in two of the counties ranked highest by FEMA for most landslide hazards: Lincoln and Tillamook. Percy will show that there is evidence to suggest that we can map a Terroir of Landslides\, using combinations of soil type\, geology\, elevation\,and terrane group\, similar to the c ombinations of environmental factors that are used to characterize wines \, chocolate\, and coffee. Results will be presented that show how these data are useful in making hazard maps. \;\n \;\nAll of the extrac tion for analysis was done in QGIS and Python using open source GIS libr aries Shapely and Rasterio. Code will be shared and discussed! \;\n&# 13\;\nJoin us Wednesday for a lively discussion!\n\nTags: opensource gis geospatial\n\nImported from: http://calagator.org/events/1250482212 SUMMARY:PDXOSGeo February Meetup LOCATION:Ecotrust Building: 721 Northwest 9th Avenue\, Portland OR 97209 US SEQUENCE:7 END:VEVENT BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20250918T042545Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20260422T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20260422T183000 DTSTAMP;VALUE=DATE-TIME:20250918T042545Z LAST-MODIFIED;VALUE=DATE-TIME:20260204T023605Z UID:http://calagator.org/events/1250482214 DESCRIPTION:Tax day is in the rear view mirror! \;\n \;\nPDXOSGeo c onnects again this week\, Wednesday April 22\, 6:30p Hot Lips Pizza @ th e Natural Capital Center 721 NW 9th Ave\, Portland OR. Join us for some show and tell and good open geo discussion! \;\n \;\nWe're strivin g to post our speaker a couple weeks in advance of the meeting\, so watc h this space!\n\nTags: opensource gis geospatial\n\nImported from: http: //calagator.org/events/1250482214 URL:https://pdxosgeo.org/ SUMMARY:PDXOSGeo April Meetup LOCATION:Ecotrust Building: 721 Northwest 9th Avenue\, Portland OR 97209 US SEQUENCE:3 END:VEVENT BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20250918T042835Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20260527T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20260527T183000 DTSTAMP;VALUE=DATE-TIME:20250918T042835Z LAST-MODIFIED;VALUE=DATE-TIME:20260527T161907Z UID:http://calagator.org/events/1250482215 DESCRIPTION:PDXOSGeo connects again this week\, Wednesday May 27\, 6:30p Hot Lips Pizza @ the Natural Capital Center 721 NW 9th Ave\, Portland OR . Join us for some show and tell and good open geo discussion! \;\n&# 13\;\nThis month bring your current projects for show and tell to share whatever open-source geo-goodness you have recently been working on! Don 't have a project to share? Feel free to share the best thing you saw at GIS in Action\, the QGIS plugin that helps you the most\, or anything y ou've recently seen that you think the group would enjoy. \;\n \;\ n\n\nTags: opensource gis geospatial\n\nImported from: http://calagator. org/events/1250482215 URL:https://pdxosgeo.org/ SUMMARY:PDXOSGeo May Meetup LOCATION:Ecotrust Building: 721 Northwest 9th Avenue\, Portland OR 97209 US SEQUENCE:4 END:VEVENT END:VCALENDAR