Meeting
Minutes – TWG Meeting January 18, 2006
IDWR Office – Boise, ID
Gene
Dana, USGS
Al Rea, USGS
Tracy Fuller, USGS (NHD portion)
Zack Maillard, IDWR (NHD portion)
Michael Ciscell, IDWR (NHD portion)
Bruce Tuttle, IDWR (NHD portion)
Linda Davis, IDWR
Sandra Thiel, IDWR
Genna Ashley, IDWR
No
phone attendees
The
meeting began at approximately 9:15 a.m.
NHD
DISCUSSION
Sandra
Thiel began the meeting by introducing Zack Maillard (who would demo his NHD
tools) and asking what everyone else had been doing with the NHD editing
process.
Al
Rea stated that USGS had not been able to do anything except house the edits
internally, and those were minimal. They
are waiting for the new Tools that are supposed to be ready soon, although the
tools may be for internal editing purposes only, and will not provide a way to
feed the edits back to NHD.
Not
all 50 states have a stewardship program in place like Idaho.
As far as the group knew, nobody else is sending edits back yet because
they are waiting for the new tools, so Idaho is leading the way in this
endeavor.
The
major push within NHD was to finish the data and set up a tracking system, and
developing the tools was pushed back until this was accomplished.
Since Keven Roth retired, Jeff Simley has been running things.
There
is a need to figure out how to get edits back to NHD, instead of focusing so
much on tracking, etc.
Part
of the problem has been some “organizational chaos” within agencies, and
that has made it very difficult to make much progress with getting a final set
of tools developed, with people leaving, moving, etc.
The
Idaho training provided some good guidelines for completing the Form Filler
Edits. Idaho would like to push on
and know what to fill in. The edits
are getting done, and most of them have primarily been focused on naming canals.
Whatever the edits, they should all be done anyway.
Zack’s program uses GNIS names to name the streams and canals.
Other developments can be made for additional editing capabilities.
After
the edits have been done, they are eventually supposed to be sent via FTP to
USGS. Idaho would like to send
individual edits instead of whole Geodatabase (GBD) files.
There was some discussion as to whether sending the entire GDB will be
required, or if that process has recently been changed by NHD.
EPA
has had their edits queued-up for 1 ½ years now. They are using the same process/data model, but on 100k NHD,
and they are holding and waiting. They
are currently testing a load process to get the data back into the USGS
repository.
Sandra
Thiel did some edits to the Middle Fork Payette huc in Idaho, and sent those
edits in to NHD. There was a
problem with one table that was not filled in.
Sandra corrected the table and sent the edits back to NHD.
She hasn’t yet heard anything back from Carl on the second set.
Zack
has been using a tool that he developed, following the NHD procedures.
Per a phone conversation with Sandra, Carl would like to have this tool
also. The group discussed the
possibility of forwarding this tool and asking that it be incorporated into the
NHD toolset.
Until
the other tools are released, it is uncertain whether or not Zack’s tools
mimic the new tools or not.
Zack
Maillard described his new tool to the group, which was developed from the use
of the Arc Network Tools and trace toolbar.
This toolset accesses the GNIS, and names arcs in batch, using modified
applications created from “out of the box” technology to accomplish these
tasks. Zack created a “flow line
naming task” toolset, which is the same as the network toolset, but will allow
you to edit features. This will
only allow the user to name features with the official GNIS names, from a pick
list. The user must be editing a
NHD database. Arcs that appear to
have background shading are not named.
Zack
demonstrated his naming/editing tool to the group. The GNIS names have been filtered to expedite processing.
There is an option to update the metadata tables, which will update the
status, flow line, reach code, etc. The
tool will only update the arcs when the Update metadata tables option is
checked.
Right
now, IDWR is maintaining at least 2 complete datasets, which will need to be
updated – 1) SDE and 2) Personal GDB. Zack
also created a tool that will log the edits that have been made.
The log has a timestamp also, and it is in xml format.
Zack wrote another tool to take this xml and put the edits back into the
Personal GDB.
The
GNIS name change requests are not the lengthy process they once were.
It is now only taking 3-4 weeks, instead of years, to get a name changed.
Many
of the names (like Squaw Creek) in Frank Robert’s area (Coeur d’Alene Tribe)
will be changed very soon.
Zack
described a flaw that he has found in the table design, relative to SQL Server,
which has a text limit of 8,062 characters per row, combined total.
There is a table called “NHDMetadata", and the “memo” field
often pushes the characters above this limit, and it will not automatically
truncate, often resulting in an ArcMap crash.
The group stated that this could possibly be an ESRI fix.
Zack stated that this is only affecting one table – the NHDMetadata
table – the rest of the tables load with no problems.
There is just one N-text, which is a non-searchable element, and often
too large and that creates the crash.
Al
Rea stated that he could talk to the folks at NHD and make them aware of the
problem. Zack will write up a
description of the problem and send to Al. Al will present these findings to the
NHD group during his meeting the week of February 7th.
It will be interesting to see if anyone at NHD has encountered this
problem before and if there are any known fixes for it.
The
editing tools for naming have been easier to develop than the tools dealing with
Geometric editing. These have been
a problem, and possibly part of the reason it has taken so long to get these
tools released.
Sandra
Thiel asked about the canals that have been plowed under.
Should they be retained as historical?
Should a new f-type field of “abandoned”, “non-existent”, or
“destroyed” be added?
Tracy
Fuller stated that this might be very difficult to accomplish with NHD.
He stated that the Forest Service wanted an “ephemeral” category
added to the f-type, which is a channel that only fills when it rains.
There was a lot of discussion of the definition of perennial vs.
intermittent accuracy levels within the dataset, and it was finally concluded
that attribute changes WITHOUT geometry changes are fine and within the
guidelines. Geometric edits within the database are strongly discouraged
because they have a ripple effect, and can cause problems.
In cases where the canals have been plowed under, Idaho may want to
create a special event table to put on top of what there is now, so that this
feature can be identified.
EPA
is currently looking at canal and drainage lining types, and may need to add a
new even table for this field also.
Sandra
Thiel stated that she has encountered areas where arcs should be connected, but
aren’t. At what point do you
extend, and at what point do you add a new arc?
There
was some discussion regarding this, and Tracy Fuller stated that if it is
supposed to be there, but missing, extend it.
If not, add an arc and call it an artificial path or connector.
In these cases, if it creates a new junction it will be the same reach
code, but a new com-id.
Sandra
Thiel asked about the new watershed boundaries. Many of the 4th field boundary lines have been
updated and have significantly changed from their original shape.
Who and how will all the reach codes be migrated?
Tracy
Fuller stated that this should be a national issue, because most all states have
significantly changed their 4th field boundary lines with the new WBD
updates. Tracy Fuller asked Al Rea
if he could find some additional funding for this application, so that a mass
migrate tool could possibly be developed.
It
was decided to ask Paul Wiese in Denver about this and find out what other
states have done. Sandra Thiel will
draft a letter and send it to the folks at NHD describing the problem.
The
reach codes will change, but the com-id should NEVER change.
Edit
flow processing is currently SDE to GDB (in-house), then send via FTP to USGS.
When Idaho eventually is able to receive the edits back, the process
should be USGS to GDB to SDE.
The
NHD portion of this meeting concluded at approximately 11:30 a.m.
The group broke for a quick lunch, and the Watershed Portion of the
meeting began at approximately 12:15 p.m.
HUC
REVIEW
Portneuf 17040208 – The TWG reviewed a portion of this huc during
the meeting. The following changes
were recommended:
Naming
error – Replace “Palisades” with Portneuf where applicable.
South
Fork Topance Creek will be broken out as a pure 6th field, and North
Fork Topance Creek and Little Topance Creek will combine into another 6th.
Twentyfour
Mile Creek was broken out as a separate 6th, bringing the outlet to
the confluence of the Portneuf River.
The
6th field line previously delineated at the dam of the Chesterfield
Reservoir was removed, and the residual area leftover from Twentyfour Mile Creek
was grouped with this 6th field, and will remain “Fourth of July
Creek-Portneuf River”.
The
confluence where Eighteen Mile Creek meets Twentyfour Mile Creek was cleaned up.
The
group worked to re-define all of the 6th fields in the Middle
Portneuf River 5th field unit.
**Note
– for all edits listed above, please see shapefile “TWG20060118.shp” for
specific line placement and line deletions.
Genna
Ashley will make these edits and bring this huc back for a continuing review in
March.
Blackfoot 17040207 – Due to time limitations, this huc was deferred
until the March TWG. This huc will
be reviewed in March.
Upper Snake Rock 17040212 – Due to time limitations, this huc was deferred
until the March TWG. This huc will
be reviewed in March.
ACTION
ITEMS:
Gene Dana will send Genna Ashley his copy of the NHD
meeting notes so that she can incorporate them into the watershed minutes.
Al
Rea will speak to the folks at NHD and make them aware of the problem during his
meetings the week of February 7th. Zack will write up a description of the problem and send to
Al so that he can present the findings to them.
The problem is the file size for the Metadata field.
Paul Wiese in Denver will change the file size on the next version of NHD.
Sandra
Thiel will draft a letter to NHD asking about the mass migration of the NHD to
fit the new 4th field watershed boundaries
Genna Ashley will work on the Portneuf edits and bring
this unit back in March for a continuing review.
MISCELLANEOUS
DISCUSSION
Genna Ashley asked about the watershed toolset that has
been in development. Al Rea stated
that he thought the toolset was available, but notices have not been circulated.
He suggested contacting either Karen Hanson or Kenny Legleiter to see if
these tools were really available. Genna
Ashley will make these contacts.
Al Rea stated that Steve Garcia would be working on the
updates for the WBD dataset as soon as funding is available.
Steve will update linework to 24k standards and possibly work on
attributing too.
Gene Dana has received a graphic showing progress for
the TVC data from Bob Smith. He has
not yet received any data. As soon
as this data is received, he will make it available to the Idaho Watershed TWG
members to aid in delineations.
NEXT
SCHEDULED TWG MEETING (S):
Week
of February 13-17, 2006
- Review of Idaho WBD Dataset at the Idaho Department of Water Resources in
Boise, ID. The meeting will begin
at 9:00 a.m. on Monday.
For directions and/or NetMeeting connections, please contact Genna Ashley at (208) 287-4880 genna.ashley@idwr.idaho.gov
***Subject
to change before meeting***