Latest Contributions by AmilynnAdams

Pulling my hair out a little over this one - working some AIS data in the Northwest Passage using Pro 2.5.2.  When attempting to reconstruct tracks, I get one of three outcomes: 1. Error message that time hasn't been enabled in the point file (it has) or 2. Tracks generated capture about 15 to 35% of the point data used as input resulting in "janky" ship tracks and point data with a common mmsi that are completely omitted. 3. Huge error message with unintelligible (to me) statements about where the tool failed, which appears to be everywhere. The data have a lot more fields per record than typical AIS data sets (includes vessel emissions values, some extra polar categorizations for a total of 30 fields/record), but the data sets aren't obscenely huge - we're talking Arctic here, not the approaches to Houston/Galveston or LA/LB.  Either I'm missing something simple, or there's some sort of bug, but it's enough to make me consider downloading QGIS. Anyone else experience this issue?  Any insight? ... View more

OK...I'm probably missing a very simple step, but I'm at the point where I can't figure out why-in-the-heck I keep getting the attached error when trying to build tracks from AIS point data.  Sure, it's a super big file (~25,000,000 records, nearly 3 GB) but I can't imagine that would be the problem.  Anyone got tips with working with the Marine Cadastre annual  AIS point data files?  I've been trying to build better tracks (fewer gaps) than those created with the tools on the Marine Cadastre AIS line files by starting with the point data myself.   ... View more

I am the Deputy Division Chief for the Waterways Risk Analysis and Support Division at the USCG's Navigation Center in Alexandria, VA.  A few GIS successes - I converted the trial version of ArcGIS Pro from a trial version to a full subscription and I can spell "GIS"...seriously, getting back in to the swing of getting to think for a living, so my GIS wins are being able to blow the cob webs out of my previous (limited) experience with GIS Areas of interest - data-driven waterways management decisions, marine spatial planning, ships and navigation interests. Favorite place on earth - 135°12'42"W 57°46'45"N ... View more