Melissa S. Soldevilla
National Oceanic and Atmospheric Administration
PhysicsHuman echolocationAcousticsBioacousticsBiology
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Publications 49
#1Kaitlin E. Frasier (Scripps Research Institute)
#2Alba Solsona BergaH-Index: 1
Last. Melissa S. Soldevilla (NOAA: National Oceanic and Atmospheric Administration)H-Index: 11
view all 8 authors...
A typical wide-bandwidth passive acoustic seafloor sensor can record tens of millions of impulsive signals produced by biological, anthropogenic, and physical sources each year. Sources include echolocating toothed whales, snapping shrimp, ship propeller cavitation, echosounders, and weather. The volume and variety of detections make manual classification by human analysts unmanageable without in-depth knowledge of the overall acoustic context of each monitoring location. We describe an interact...
#1Rebecca Cohen (UCSD: University of California, San Diego)
Last. John A. Hildebrand (UCSD: University of California, San Diego)H-Index: 49
view all 5 authors...
#1Aaron Thode (UCSD: University of California, San Diego)H-Index: 19
#2Taiki Sakai (NOAA: National Oceanic and Atmospheric Administration)
Last. Katherine H. KimH-Index: 5
view all 7 authors...
The AN/SSQ-53 Directional Frequency Analysis and Recording (DIFAR) sonobuoy is an expendable device that can derive acoustic particle velocity along two orthogonal horizontal axes, along with acoustic pressure. This information enables computation of azimuths of low-frequency acoustic sources from a single compact sensor. The standard approach for estimating azimuth from these sensors is by conventional beamforming (i.e., adding weighted time series), but the resulting “cardioid” beampattern is ...
#1Nicole L. Vollmer (National Museum of Natural History)H-Index: 8
#2Erin AsheH-Index: 12
Last. Rob WilliamsH-Index: 8
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#1John A. Hildebrand (UCSD: University of California, San Diego)H-Index: 49
#2Kaitlin E. Frasier (UCSD: University of California, San Diego)H-Index: 5
Last. Mark A. McDonaldH-Index: 19
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Pygmy sperm whales (Kogia breviceps) and dwarf sperm whales (Kogia sima) are deep diving cetaceans that commonly strand along the coast of the southeast US, but that are difficult to study visually at sea because of their elusive behavior. Conventional visual surveys are thought to significantly underestimate the presence of Kogia and they have proven difficult to approach for tracking and tagging. An approach is presented for density estimation of signals presumed to be from Kogia spp. based on...
1 CitationsSource
#1Samara M. Haver (PMEL: Pacific Marine Environmental Laboratory)H-Index: 4
#2Jason Gedamke (Office of Science and Technology)H-Index: 9
Last. Holger Klinck (Cornell University)H-Index: 11
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Abstract The National Oceanic and Atmospheric Administration (NOAA)/National Park Service (NPS) Ocean Noise Reference Station (NRS) Network is an array of currently twelve calibrated autonomous passive acoustic recorders. The first NRS was deployed in June 2014, and eleven additional stations were added to the network during the following two years. The twelve stations record data that can be used to quantify baseline levels and multi-year trends in ocean ambient sound across the continental Uni...
11 CitationsSource
#1Sean A. HayesH-Index: 1
Last. Frederick W. WenzelH-Index: 4
view all 17 authors...
#1Kaitlin E. Frasier (SIO: Scripps Institution of Oceanography)H-Index: 5
#2Marie A. Roch (SDSU: San Diego State University)H-Index: 13
Last. John A. Hildebrand (SIO: Scripps Institution of Oceanography)H-Index: 49
view all 6 authors...
Delphinids produce large numbers of short duration, broadband echolocation clicks which may be useful for species classification in passive acoustic monitoring efforts. A challenge in echolocation click classification is to overcome the many sources of variability to recognize underlying patterns across many detections. An automated unsupervised network-based classification method was developed to simulate the approach a human analyst uses when categorizing click types: Clusters of similar click...
5 CitationsSource
#1Genevieve Davis (University of Massachusetts Boston)H-Index: 3
#2Mark F. Baumgartner (WHOI: Woods Hole Oceanographic Institution)H-Index: 24
Last. Sofie M. Van Parijs (WHOI: Woods Hole Oceanographic Institution)H-Index: 16
view all 36 authors...
Given new distribution patterns of the endangered North Atlantic right whale (NARW; Eubalaena glacialis) population in recent years, an improved understanding of spatio-temporal movements are imperative for the conservation of this species. While so far visual data have provided most information on NARW movements, passive acoustic monitoring (PAM) was used in this study in order to better capture year-round NARW presence. This project used PAM data from 2004 to 2014 collected by 19 organizations...
14 CitationsSource
In the late 1990s, George E. Ioup began studying echolocation clicks as a means of understanding marine mammals in the Gulf of Mexico (GOM). He also led one of the few research programs focused on pelagic species in this chronically impacted region in the years preceding the Deepwater Horizon oil spill. Today, passive acoustic monitoring (PAM) is one of the primary tools used to study the nearly 20 pelagic odontocete species found in the GOM, including sperm whales, beaked whales, dolphins, and ...