GISMO Meeting Minutes 7/17//03
- GISMO Meeting Minutes 7/17//03 Jack Eichenbaum and Ben
(Supplementary minutes provided by Tom Lunke)
> Next meeting: W September 17 Program probably MTA Subways (DanMcHugh)
> Circulated sign-in sheet (on contact list.) Correct errors byemail: Mryvkin@...
> Map Blogging: a lively discussion ensued about blogging and place-specific Internet activity. Related developments include place-
archiving of emails, geotagging and civil rights issues. Is there a
GISMO program here with the right person?
> Ian White (Urban Mapping) ian@... displayedhis "Dynamap" for tourists where different map layers are visible
depending on reflection angle.
> Jack Eichenbaum raised a question about maximum field width forattribute data in desktop software. (255).
> Virtual GISMO and listserv: Noreen Whysel (nwhysel@...):The website has been updated to show past meeting minutes. Noreen
will send email about how to use the GISMO website?? For those who
complained about the adverstisements there are instructions on how
to prevent.?? RYSE, GOURL? Other sites??
> Real Estate subgroup: John Ziegler reported that he is looking fora real estate industry speaker for the next meeting.
> Long Island GIS Spring Meeting Th 5/22 see www.ligis.org Alow turnout was reported
> NYC ARC Users at Columbia U W 5/21 Reported as interesting withexcellent presentations.
> Westchester GIS at Purchase College F 6/13; No report; try AnaHiraldo aeh2@...;
> DOH Environmental Health grant: DOH is the recipient of a federalgrant for environmental health tracking which requires the
establishment of a formal advisory committee from the Greater NYC
data community. A number of GISMO members are taking part in this.
Caroline Bragdon and David Kass of DOH are the outreach.
> Dutch RAVI organization (data integration)http://www.euronet.nl/users/ravi/english.html is seeking to
establish knowledge exchange with NYC. Contact GISMO members Mike
Kevany mkevany@... or Jack Eichenbaum
jaconet@... or Wendy Dorf wrdgis@...
> NYS GIS Albany 10/1-2/03 may still be accepting presentationproposals, conference website and brochure soon
available, meanwhile inquiries to Horace Shaw hbshaw@...
> OASIS Steering group 9/9/03 10 AM for more info: "Matthew Arnn"<marnn@...>
Introducing New GISMO Members
JIA RU is a summer intern at the Landmark Preservation Commission
and studying at Rutgers. Josephrujia@...
BEN DISCOE is at TOPP/VTP integrating GIS, CAD, and Remote Sensing
into virtual terrain modeling . (See website vterrain.org) 212-219-
SEAN FITZPATRICK is a commercial account manager with ESRI (NYC) and
the Long Island Regional Representative. 212-349-3700 X12;
JOHAN HERRLIN is with the ESRI (NYC) technical group and helped
design the OASIS system. 212-349-3700; jherrlin@...
ART HENDELA is a Ph.D. student in the Information Science Dept at
New Jersey Institute of Technology and is involved in WTC recovery
data analysis. 201-460-1253; art.hendela@...
AUDREY MASSA is a geologist seeking to expand use of GIS at FEMA,
now incorporated into the Department of Homeland Security. She works
in environmental and litigation areas. 212-680-8625;
JEAN MOOG works at the NYC Department of Finance in the Office of
Technical Solutions, devoloping an intranet GIS for commercial
property assessors. 212-361-1103; moogj@...
MARLEN KOKAZ is involved with multi-engineering transportation
systems at Urban Engineers Inc., based in Philadelphia. 215-922-8081
NAOMI SANTONI is a recent graduate and now a nurse at Mt Sinai
Hospital with an interest in GIS. 914-478-3148; nsantoni@...
DAVID K SUTTON is a Hunter College graduate working with MTA in the
NYC Transit division and is involved in strategic planning and
Metrocard development. He is looking for a new job. 212-674-8153;
NIDHI TOMAR was recently employed at the Board of Education and is
learning to use GIS. 718-935-5581; nidhitomar@...
CHRIS WILLIAMS is an intern, making maps at the Harlem Community
Development Corp. 212-961-4164; chwilliams@...
BARRY DROGAN, formerly with MTA (Bridges and Tunnels), is now self-
SUSAN KRAUSS now works for an international government agency, GACC-
YEC. 212-445-1029; sue831831@aolcom
New Member by Mail
SUSAN FOWLER has designed map-based interfaces for
telecommunications networks and run a small land surveying business.
She wrote a web application design book with a chapter on
interfaces using maps. 718 720-1169; susan@...
Veteran GISMO Members introduced themselves to the group.
GISMO Program: OASIS (Notes by Charlie Ridgway)
Steve Romalewski (NYPIRG-CMAP), Johan Herrlin (ESRI NYC) and Lenny
Librizzi (Council on the Environment of NYC) presented. They were
colleagues in developing the OASIS Tree Mapping Project, one of
many useful coverages available in OASIS.
*There are an estimated 500,000 street trees in New York City
The tree project was a demonstration project funded by the US Forest
Service to demonstrate the feasibility of assembling open space
resources to apply them to a common theme. In this case that theme
was street trees. The project covered small plots in three
neighborhoods in a swath across New York City. The neighborhoods
were chosen to represent three broad habitats:
* Hunts Point, The Bronx: few trees but a high potential for tree
* Lower East Side, Manhattan: moderate planting and moderate
potential for future planting
* New Brighton, Staten Island: suburban community with heavy tree
* 322 trees were surveyed for the project. They have an estimated
replacement value of more than $1M.
Data collection, presented by Lenny Librizzi, Council on the
Environment of NYC, was handled by certified tree pruners. These are
people who have been trained to care for city trees and are familiar
with the various species and what they look like in health and
sickness. Various parameters about each tree in the study area were
collected such as species, diameter at breast height, height,
percent crown cover, state of health, tree pit information. The
teams in The Bronx and Manhattan collected the information on paper
forms while the Staten Island team used handheld computers equipped
The ArcPad application was developed by Johan Herrlin of ESRI who
described it. The application uses limited data (street and building
footprint layers from the NYC basemap) because of the memory
constraints of the palmtops. Trees were placed on the map manually
rather than using the GPS capabilities of ArcPad because the actual
location was more accurate given the inherent error of consumer
grade GPS and the effects of multipath. Once a tree was located the
application prompted the team to enter all the necessary data about
that tree. The application asked pertinent questions based on
previous replies and validated those replies on the spot. This has
the obvious advantage of assuring that complete and accurate
information is collected about each tree the first time. Data
collected on the paper forms was transferred to a copy of the ArcPad
application located in the office and Lenny reported that the hand-
written data was basically as accurate as that collected using
ArcPad in the field.
The collected data was forwarded to the US Forest Service where it
was processed with an algorithm that calculated the replacement
value of the tree, the amount of pollution removed from the air by
the tree, amount of pollution contributed by the tree, and the value
of the tree relative to its ecological function.
Finally the data was transferred to CMAP where it was plotted and is
made available to the public on their Open Accessible Space
Information System for New York City (OASIS) Steve Romalewski
(NYPIRG-CMAP) provided an overview of the CMAP application. He
advised users that the data available for inclusion on OASIS is a
mix and match of data layers of differing vintages and qualities.
Not all coverages conform to the NYC basemap. Scales of the various
coverages do not always match so some coverages may sometimes drop
out of the map. There isn't a lot of metadata available about the
coverages right now but CMAP is working to improve both quantity and
quality. They are also planning to make unrestricted coverages
downloadable as shapefiles.
OASIS can be viewed at www.oasisnyc.net