Armstrong, Andy

Calder, Brian R.

Gardner, James V.

Masetti, Giuseppe

English

UNH Scholars' Repository

University of New HampshireUniversity of New Hampshire Scholars' RepositoryCenter for Coastal and Ocean Mapping Center for Coastal and Ocean Mapping3-2015Multibeam Mapping of Feature Rich Seafloor inthe U.S. Pacific Remote Islands Marine NationalMonument and on Mendocino Ridge off theCalifornia CoastAndy ArmstrongUniversity of New Hampshire, DurhamJames V. GardnerUniversity of New Hampshire, Durham, jim.gardner@unh.eduBrian R. CalderUniversity of New Hampshire, Durham, brian.calder@unh.eduGiuseppe MasettiUniversity of New Hampshire, Durham, giuseppe.masetti@unh.eduFollow this and additional works at: https://scholars.unh.edu/ccomPart of the Oceanography and Atmospheric Sciences and Meteorology CommonsThis Conference Proceeding is brought to you for free and open access by the Center for Coastal and Ocean Mapping at University of New HampshireScholars' Repository. It has been accepted for inclusion in Center for Coastal and Ocean Mapping by an authorized administrator of University of NewHampshire Scholars' Repository. For more information, please contact nicole.hentz@unh.edu.Recommended CitationA. A. Armstrong, James V. Gardner, Calder, Brian R., and Masetti, G., “Multibeam Mapping of Feature Rich Seafloor in the U.S. PacificRemote Islands Marine National Monument and on Mendocino Ridge off the California Coast”, U.S. Hydrographic Conference . TheHydrographic Society of America, National Harbor, MD, 2015.Multibeam Mapping of Feature-Rich Seafloor in the U.S. Pacific Remote Islands Marine National Monument and on Mendocino Ridge off the California Coast Andrew Armstrong, James Gardner, Brian Calder, Giuseppe Masetti  NOAA/UNH Joint Hydrographic Center  and UNH Center for Coastal and Ocean Mapping Equator R/V Kilo Moana  2014 Kongsberg EM 122   12 kHz Multibeam Echo Sounder Proclamation 9173 of September 25, 2014 Pacific Remote Islands Marine National Monument Expansion By the President of the United States of America   “…A significant geological feature of the adjacent areas is the undersea mountains. A seamount is a mountain rising from the seabed that does not reach the sea surface. Most often seamounts occur in chains or clusters. Nearly all of the seamounts in the adjacent areas are volcanoes: some are still erupting actively, and others stopped erupting long ago. The Monument includes 33 seamounts; the adjacent areas include approximately 132 more. The additional seamounts provide important opportunities for scientific exploration and study. Estimates are that 15 to 44 percent of the species on a seamount or seamount group are found nowhere else on Earth. Roughly 5 to 10 percent of invertebrates found on each survey of a seamount are new to science. Some seamounts have pools of undiscovered species. The approximately 132 seamounts in the adjacent areas provide the opportunity for identification and discovery of many species not yet known to humans, with possibilities for research, medicines, and other important uses….”  NOAA Ship Okeanos Explorer  2009 Kongsberg EM 302  30 kHz Multibeam Echo Sounder  R/V Atlantis  2014 Kongsberg EM 122  12 kHz Multibeam Echo Sounder Base: 4570 m Peak: 1889 m 2681 m of relief in 12 km distance Acknowledgements  Ship’s Companies  NOAA Ship Okeanos Explorer  University of Hawaii R/V Kilo Moana  Woods Hole Oceanographic Institution R/V Atlantis  Chief Scientists and Science Parties  NOAA Office of Ocean Exploration  NOAA Office of Coast Survey  NOAA National Geophysical Data Center  University of New Hampshire 

Multibeam Mapping of Feature Rich Seafloor in the U.S. Pacific Remote Islands Marine National Monument and on Mendocino Ridge off the California Coast

University of New Hampshire

University of New Hampshire
University of New Hampshire Scholars' Repository
Center for Coastal and Ocean Mapping Center for Coastal and Ocean Mapping
3-2015
Multibeam Mapping of Feature Rich Seafloor in
the U.S. Pacific Remote Islands Marine National
Monument and on Mendocino Ridge off the
California Coast
Andy Armstrong
University of New Hampshire, Durham
James V. Gardner
University of New Hampshire, Durham, jim.gardner@unh.edu
Brian R. Calder
University of New Hampshire, Durham, brian.calder@unh.edu
Giuseppe Masetti
University of New Hampshire, Durham, giuseppe.masetti@unh.edu
Follow this and additional works at: https://scholars.unh.edu/ccom
Part of the Oceanography and Atmospheric Sciences and Meteorology Commons
This Conference Proceeding is brought to you for free and open access by the Center for Coastal and Ocean Mapping at University of New Hampshire
Scholars' Repository. It has been accepted for inclusion in Center for Coastal and Ocean Mapping by an authorized administrator of University of New
Hampshire Scholars' Repository. For more information, please contact nicole.hentz@unh.edu.
Recommended Citation
A. A. Armstrong, James V. Gardner, Calder, Brian R., and Masetti, G., “Multibeam Mapping of Feature Rich Seafloor in the U.S. Pacific
Remote Islands Marine National Monument and on Mendocino Ridge off the California Coast”, U.S. Hydrographic Conference . The
Hydrographic Society of America, National Harbor, MD, 2015.
Multibeam Mapping of Feature-
Rich Seafloor in the U.S. Pacific 
Remote Islands Marine National 
Monument and on Mendocino 
Ridge off the California Coast 
Andrew Armstrong, James Gardner, Brian Calder, Giuseppe Masetti 
 
NOAA/UNH Joint Hydrographic Center  
and UNH Center for Coastal and Ocean Mapping 


Equator 

R/V Kilo Moana  2014 
Kongsberg EM 122   12 kHz Multibeam Echo Sounder 

Proclamation 9173 of September 25, 2014 
Pacific Remote Islands Marine National Monument Expansion 
By the President of the United States of America 
  
“…A significant geological feature of the adjacent areas is the undersea 
mountains. A seamount is a mountain rising from the seabed that does not 
reach the sea surface. Most often seamounts occur in chains or clusters. 
Nearly all of the seamounts in the adjacent areas are volcanoes: some are 
still erupting actively, and others stopped erupting long ago. The Monument 
includes 33 seamounts; the adjacent areas include approximately 132 more. 
The additional seamounts provide important opportunities for scientific 
exploration and study. Estimates are that 15 to 44 percent of the species on 
a seamount or seamount group are found nowhere else on Earth. Roughly 5 
to 10 percent of invertebrates found on each survey of a seamount are new 
to science. Some seamounts have pools of undiscovered species. The 
approximately 132 seamounts in the adjacent areas provide the opportunity 
for identification and discovery of many species not yet known to humans, 
with possibilities for research, medicines, and other important uses….” 
 







NOAA Ship Okeanos Explorer  2009 
Kongsberg EM 302  30 kHz Multibeam Echo Sounder 
 
R/V Atlantis  2014 
Kongsberg EM 122  12 kHz Multibeam Echo Sounder 






Base: 4570 m 
Peak: 1889 m 
2681 m of relief in 12 km distance 
Acknowledgements 
 Ship’s Companies 
 NOAA Ship Okeanos Explorer 
 University of Hawaii R/V Kilo Moana 
 Woods Hole Oceanographic Institution R/V Atlantis 
 Chief Scientists and Science Parties 
 NOAA Office of Ocean Exploration 
 NOAA Office of Coast Survey 
 NOAA National Geophysical Data Center 
 University of New Hampshire 


https://scholars.unh.edu/cgi/viewcontent.cgi?article=1012&amp;context=ccom

Multibeam Mapping of Feature Rich Seafloor in the U.S. Pacific Remote Islands Marine National Monument and on Mendocino Ridge off the California Coast

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