# Written Before the Water > The 19:39 note on a Chukchi Sea glider's record for August 27th reads "likely mn". The 20:24 note reads "Mn". Published 2026-08-29 by Alaska AI. 9 slides. Canonical: https://alaskaaihq.com/archive/2026-08-29/ ## What we verified - A Slocum G2 glider was deployed in the Chukchi Sea off the northwest coast of Alaska on July 24, 2026. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - The glider is listed as an active mission under the designation unit 595 on the Robots4Whales site. [Woods Hole Oceanographic Institution, Robots4Whales](https://robots4whales.whoi.edu/), primary document, 2026-08-28. - The deployment page's daily detection grid carries eight sound classes. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - Killer whale is the third class named in the deployment page's detection grid. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - The near real time detection table for the deployment carries seven sound class columns and has no Killer whale column. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - Air gun is one of the sound classes the system tallies alongside the animal classes. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - The Other class is defined as everything the call library does not contain. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - Tallies of classified calls are reported by the DMON every 15 minutes. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - Only calls averaging 11 dB above background or higher are tallied and reported as pitch tracks. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - Only calls with a Mahalanobis distance under 3 are tallied. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - Pitch tracks of individual calls are reported at a maximum rate of 8 KB per hour. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - Not every call the system detects is sent back as a pitch track. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - All dates and times published in the detection table are in the AKDT time zone. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - The deployment page carries 36 dated daily analyst review records, the first for July 24th and the most recent for August 28th, 2026. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - The most recent published daily record as of the run date is August 28, 2026, one day before this deck. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - Results on the page have been reviewed by an experienced analyst, Kate Stafford. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - The project is designed to examine relationships between marine mammal distribution and oceanographic conditions monitored by the glider. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - The deployment is run by Oregon State University, the University of Alaska Fairbanks and Woods Hole Oceanographic Institution. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - The Alaska Ocean Observing System supported development of the Arctic marine mammal call library and the preparation and operation of the glider in 2026. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - The glider itself was procured in 2016 with support from the North Pacific Research Board. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring project page for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595.shtml), primary document, 2026-08-28. - DMON stands for digital acoustic monitoring instrument and is a passive acoustic instrument developed at Woods Hole Oceanographic Institution that records and processes audio in real time. [Woods Hole Oceanographic Institution, Robots4Whales](https://robots4whales.whoi.edu/how-it-works/), primary document, 2026-08-29. - LFDCS stands for low frequency detection and classification system and runs on the DMON to identify marine mammal calls. [Woods Hole Oceanographic Institution, Robots4Whales](https://robots4whales.whoi.edu/how-it-works/), primary document, 2026-08-29. - The classifier extracts simple statistics from each pitch track and uses discriminant function analysis to classify each call. [Woods Hole Oceanographic Institution, Robots4Whales](https://robots4whales.whoi.edu/how-it-works/), primary document, 2026-08-29. - The classifier compares calls against a known call library defined before the instrument is deployed. [Woods Hole Oceanographic Institution, Robots4Whales](https://robots4whales.whoi.edu/how-it-works/), primary document, 2026-08-29. - Pitch tracks are evaluated by a human analyst to decide whether whale calls are really present. [Woods Hole Oceanographic Institution, Robots4Whales](https://robots4whales.whoi.edu/how-it-works/), primary document, 2026-08-29. - The robots detect sounds, identify the species from the characteristics of those sounds and report to researchers on shore by satellite in near real time. [Woods Hole Oceanographic Institution, Robots4Whales](https://robots4whales.whoi.edu/), primary document, 2026-08-29. - The first published record for August 28, 2026 places the glider at 68.6157 north and 166.9117 west. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - Across the August 28, 2026 records the glider stayed inside roughly 68.61 to 68.67 north and 166.83 to 166.92 west. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - The Air gun column logged a non zero tally on August 28, 2026. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring detection table for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_summary.html), primary document, 2026-08-28. - The code Mn used in the analyst notes is not one of the standing class columns in the published tables. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-28. - An analyst note dated August 22, 2026 reads poss Mn p8. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-22. - A second analyst note dated August 22, 2026 reads poss Mn. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-22. - An analyst note dated August 27, 2026 reads likely mn in lower case. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-27. - The analyst note logged 45 minutes later on August 27, 2026 reads Mn with no hedge. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-27. - An analyst note dated August 20, 2026 reads poss Mn. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-20. - The earliest analyst note for the deployment is dated July 24, 2026 and reads check p13-16. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-07-24. - An analyst note dated August 14, 2026 reads Can't be sure of species. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-14. - An analyst note dated August 6, 2026 reads poss single fin whale pulse p3. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-06. - An analyst note dated August 10, 2026 reads odd PTs. Not walrus. A bit high for KWs but perhaps. [Woods Hole Oceanographic Institution, Digital Acoustic Monitoring analyst notes for chukchi2607 unit 595](https://dcs.whoi.edu/chukchi2607/chukchi2607_unit_595_html/chukchi2607_unit_595_allnotes.html), primary document, 2026-08-10. - Alaska Native communities harvest bowhead whales for subsistence. [NOAA Fisheries](https://www.fisheries.noaa.gov/species/bowhead-whale), primary document, 2026-08-29. - Alaska Natives hunt beluga whales for subsistence and traditional handicrafts. [NOAA Fisheries](https://www.fisheries.noaa.gov/species/beluga-whale), primary document, 2026-08-29. - Subsistence harvest of bearded seals occurs in parts of the species range and is co managed with Alaska Native organizations. [NOAA Fisheries](https://www.fisheries.noaa.gov/species/bearded-seal), primary document, 2026-08-29. - The FAA announced an expansion of its BEYOND drone program on August 27, 2026. [Federal Aviation Administration newsroom](https://www.faa.gov/newsroom/trumps-transportation-secretary-sean-p-duffy-announces-major-expansion-faa-beyond-program), primary document, 2026-08-27. - The FAA said it will double the BEYOND program by selecting up to eight additional state, local, tribal and territorial lead participants. [Federal Aviation Administration newsroom](https://www.faa.gov/newsroom/trumps-transportation-secretary-sean-p-duffy-announces-major-expansion-faa-beyond-program), primary document, 2026-08-27. - BEYOND Phase 1 participants logged more than 70,000 flights. [Federal Aviation Administration newsroom](https://www.faa.gov/newsroom/trumps-transportation-secretary-sean-p-duffy-announces-major-expansion-faa-beyond-program), primary document, 2026-08-27. - More than 48,000 of those Phase 1 flights were beyond visual line of sight operations. [Federal Aviation Administration newsroom](https://www.faa.gov/newsroom/trumps-transportation-secretary-sean-p-duffy-announces-major-expansion-faa-beyond-program), primary document, 2026-08-27. - The University of Alaska Fairbanks is one of the eight BEYOND lead participants. [Federal Aviation Administration, BEYOND program page](https://www.faa.gov/uas/programs_partnerships/beyond), primary document, 2025-05-13. - BEYOND Phase 2 began in 2025 under the FAA Reauthorization Act of 2024 and the program runs to 2029. [Federal Aviation Administration, BEYOND program page](https://www.faa.gov/uas/programs_partnerships/beyond), primary document, 2025-05-13. - The University of Alaska Fairbanks announced on August 19, 2026 that its university affiliated research center is renamed the Arctic and Homeland Defense Center. [University of Alaska Fairbanks news](https://www.uaf.edu/news/expanded-uaf-military-partnership-looks-north.php), primary document, 2026-08-19. - A five year agreement signed the week before the announcement aligns the UAF center with the North American Aerospace Defense Command and U.S. Northern Command. [University of Alaska Fairbanks news](https://www.uaf.edu/news/expanded-uaf-military-partnership-looks-north.php), primary document, 2026-08-19. - The renamed center is one of 15 university affiliated research centers nationwide. [University of Alaska Fairbanks news](https://www.uaf.edu/news/expanded-uaf-military-partnership-looks-north.php), primary document, 2026-08-19. - UAF interim chancellor Larry Hinzman said the partnership is a natural extension of increasing U.S. and global interest in the Arctic. [University of Alaska Fairbanks news](https://www.uaf.edu/news/expanded-uaf-military-partnership-looks-north.php), primary document, 2026-08-19. - Geophysical Institute director Robert McCoy said the change shows great confidence in the institute's ability to help with Arctic based needs. [University of Alaska Fairbanks news](https://www.uaf.edu/news/expanded-uaf-military-partnership-looks-north.php), primary document, 2026-08-19. Slides and the deck PDF are linked from the canonical page.