JiM had notes as follows on this idea of getting Notus data in an old googledoc called "telemetered_temperature_project" under a section called "net_mensuration_systems"
In the Spring of 2016, Kevin Jackson suggested we access the temperature data being collected by this system which is already installed on many boats in the Gulf of Maine. He mentioned those based in Newburyport (Jim Ford), Gloucester (Jim Odin’s?, for example) and Portland. Kevin emailed 3/23/2016 an example output file which was apparently obtained by running some trawlmaster software to convert it from proprietary format (.tow). He also emailed me the user guide.
Ron Smolowitz is at least familiar with this NOTUS system as well.
Pete Chase noted in a 19 Sept 2016 email that “NOTUS brochure seems like temperature and depth would not have to come from a different sensor, it would just require upgrading existing spread sensors to collect it. You would basically just have to pay for the software upgrade. Once that's done, a NOTUS tech should be able to provide the NMEA string for importing data into SCS.” In that case, we just need to feed that stream to our wheelhouse RaspberryPi.
Paul Kostovik replied “Yes, we are currently capturing NOTUS data in real-time during the shrimp survey on the Gloria Michelle through SCS, but we use a CTD on the head rope for temperature, and not from one of the NOTUS sensors. I'm not sure if you could use a single Y splitter, because of the way NOTUS provides NMEA out (requires two com ports), but we should talk in person or over the phone to provide better detail.”
In Jan 2017, we decided to follow-up on this further. JiM sent an email to Francis Parrott
Email: notus@notus.ca in St John Newfoundland as follows: “As an oceanographer at the NOAA lab in Woods Hole, I have been asked to investigate the possibility of extracting temperature and depth data from NOTUS systems on commercial vessels. We are installing customized microcomputers in some wheelhouses that, if wired directly to the NOTUS, may be able to read NMEA strings? It this something that might be possible? I work with Kevin Jackson (Gloucester Lab) who is also investigating this idea. It seems that there is a great potential to collect a lot of temperature and depth information!” Francis replied very positively (9 Jan 2017) suggesting a phone conference. He sent along a pdf describing the NMEA formats which I stored in the “notis” subfolder where it says temperature records appear as: “$NTMTW,x.x,C with x.x - Temperature of water, -5 to 30 C”.
Further reading of the NOTUS Trawlmaster brochure reveals that the temperature sensors are only accurate to “0.5 degC” but they claim the depth sensors are good to “0.1 meter”.
In late June 2017, John Hoey shared a series of email exchanges with Phil, PaulK, and others about getting the NOTUS data after an SCS installation.
In Feb 2018, John Hoey put out another plea to make this happen and that there isn’t much response from DMS. JiM and Jeff will discuss this net mensuration project in late Feb 2018.
In August 2022, the potential for getting data from NOTIS systems came up again when we found one operating on F/V Princess Scarlett and one planned to go on F/V Proud Mary. Not sure what the next step would be but one first step is to find out how to convert the Notus ".tow" files to human readable. Jim plans on sending another email to Notus.
JiM had notes as follows on this idea of getting Notus data in an old googledoc called "telemetered_temperature_project" under a section called "net_mensuration_systems"
In the Spring of 2016, Kevin Jackson suggested we access the temperature data being collected by this system which is already installed on many boats in the Gulf of Maine. He mentioned those based in Newburyport (Jim Ford), Gloucester (Jim Odin’s?, for example) and Portland. Kevin emailed 3/23/2016 an example output file which was apparently obtained by running some trawlmaster software to convert it from proprietary format (.tow). He also emailed me the user guide.
Ron Smolowitz is at least familiar with this NOTUS system as well.
Pete Chase noted in a 19 Sept 2016 email that “NOTUS brochure seems like temperature and depth would not have to come from a different sensor, it would just require upgrading existing spread sensors to collect it. You would basically just have to pay for the software upgrade. Once that's done, a NOTUS tech should be able to provide the NMEA string for importing data into SCS.” In that case, we just need to feed that stream to our wheelhouse RaspberryPi.
Paul Kostovik replied “Yes, we are currently capturing NOTUS data in real-time during the shrimp survey on the Gloria Michelle through SCS, but we use a CTD on the head rope for temperature, and not from one of the NOTUS sensors. I'm not sure if you could use a single Y splitter, because of the way NOTUS provides NMEA out (requires two com ports), but we should talk in person or over the phone to provide better detail.”
In Jan 2017, we decided to follow-up on this further. JiM sent an email to Francis Parrott Email: notus@notus.ca in St John Newfoundland as follows: “As an oceanographer at the NOAA lab in Woods Hole, I have been asked to investigate the possibility of extracting temperature and depth data from NOTUS systems on commercial vessels. We are installing customized microcomputers in some wheelhouses that, if wired directly to the NOTUS, may be able to read NMEA strings? It this something that might be possible? I work with Kevin Jackson (Gloucester Lab) who is also investigating this idea. It seems that there is a great potential to collect a lot of temperature and depth information!” Francis replied very positively (9 Jan 2017) suggesting a phone conference. He sent along a pdf describing the NMEA formats which I stored in the “notis” subfolder where it says temperature records appear as: “$NTMTW,x.x,C with x.x - Temperature of water, -5 to 30 C”.
Further reading of the NOTUS Trawlmaster brochure reveals that the temperature sensors are only accurate to “0.5 degC” but they claim the depth sensors are good to “0.1 meter”.
In late January 2017, I emailed andrew.reynaga@noaa.gov and douglas.w.pawlishen@noaa.gov since we hope to visit the Gloria Michelle but don’t remember if I got much of a response.
In late June 2017, John Hoey shared a series of email exchanges with Phil, PaulK, and others about getting the NOTUS data after an SCS installation.
In Feb 2018, John Hoey put out another plea to make this happen and that there isn’t much response from DMS. JiM and Jeff will discuss this net mensuration project in late Feb 2018.
In August 2022, the potential for getting data from NOTIS systems came up again when we found one operating on F/V Princess Scarlett and one planned to go on F/V Proud Mary. Not sure what the next step would be but one first step is to find out how to convert the Notus ".tow" files to human readable. Jim plans on sending another email to Notus.