A5008656856- Arctic and Antarctic ice dynamics
- Cryospheric studies and observations
- Geology and Paleoclimatology Research
- Marine and fisheries research
- Planetary Science and Exploration
- Astro and Planetary Science
- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Polar Research and Ecology
- Atmospheric and Environmental Gas Dynamics
- Winter Sports Injuries and Performance
- Marine and coastal ecosystems
- Fish Ecology and Management Studies
- Underwater Acoustics Research
- Marine animal studies overview
- Physiological and biochemical adaptations
- Isotope Analysis in Ecology
- Aquatic Invertebrate Ecology and Behavior
- Adventure Sports and Sensation Seeking
- Space exploration and regulation
- Spaceflight effects on biology
- Ocean Acidification Effects and Responses
- Oceanographic and Atmospheric Processes
- Marine Biology and Ecology Research
British Antarctic Survey
2016-2024
Natural Environment Research Council
2021-2023
Abstract. Antarctic krill (Euphausia superba) and salps are major macroplankton contributors to Southern Ocean food webs also fished commercially. Managing this fishery sustainably, against a backdrop of rapid regional climate change, requires information on distribution time trends. Many data the abundance both taxa have been obtained from net sampling surveys since 1926, but much is stored in national archives, sometimes only notebooks. In order make these important accessible we collated...
Abstract Large‐bodied animals such as baleen whales can now be detected with very high resolution (VHR) satellite imagery, allowing for scientific studies of in remote and inaccessible areas where traditional survey methods are limited or impractical. Here we present the first study using WorldView‐3 satellite, which has a maximum spatial 31 cm panchromatic band, highest currently available to nonmilitary professionals. We manually detected, described, counted four different mysticete...
Icebergs impact the physical and biological properties of ocean where they drift, depending on degree melting. We use satellite imagery altimetry to quantify area, thickness, volume change massive A68A iceberg from its calving off Larsen-C Ice Shelf in July 2017 until January 2021, when it disintegrated. thinned 235 ± 9 168 10 m, average, lost 802 34 Gt ice 3.5 years, 254 17 which was through basal melting (a lower bound for immediate fresh water input into ocean). Basal peaked at 7.2 2.3...
Abstract As whales recover from commercial exploitation, they are increasing in abundance habitats that have been absent for decades. However, studying the recovery and habitat use patterns of whales, particularly remote inaccessible regions, frequently poses logistical economic challenges. Here we trial a new approach measuring whale density area, using Very-High-Resolution WorldView-3 satellite imagery. This has capacity to provide sightings data complement assist traditional surveys. We...
Ocean mixing around Antarctica exerts key influences on glacier dynamics and ice shelf retreats, sea ice, marine productivity, thus affecting global level climate. The conventional paradigm is that this dominated by winds, tides, buoyancy forcing. Direct observations from the Antarctic Peninsula demonstrate calving triggers internal tsunamis, breaking of which drives vigorous mixing. Being widespread frequent, these tsunamis are at least comparable to much more important than in driving...
Abstract Contemporary calculations for the flux of extraterrestrial material falling to Earth’s surface (each event referred as a “fall”) rely upon either short-duration fireball monitoring networks or spatially limited ground-based meteorite searches. To date, making accurate fall estimates from much-documented stranding zones Antarctica has been prohibited due complicating glacial ice dynamics and difficulties in pairing together distinct samples originating same fall. Through...
Antarctica has been subject to widespread, long-term and on-going human activity since the establishment of permanent research stations became common in 1950s. Equipment may become intentionally or inadvertently lost Antarctic marine terrestrial environments as a result scientific associated support activities, but this poorly quantified date. Here we report quantity nature equipment by UK's national operator Antarctica, British Survey (BAS). Over 15-year study period (2005-2019), 125...
The importance of cold-water blue carbon as biological pumps that sequester into ocean sediments is now being realised. Most polar research to date has focussed on deep water, yet the highest productivity in shallows. This study measured functional biodiversity and standing stock accumulated by shallow-water (<25 m) benthic assemblages both hard soft substrata Antarctic Peninsula (WAP, 67° S). Soft (391 ± 499 t C km−2) contained 60% less than (648 909). In situ observations SCUBA divers...
Abstract The Lost Meteorites of Antarctica project was the first UK‐led Antarctic meteorite recovery expedition. has successfully confirmed two new high‐density stranding zones in Hutichison Icefield and Outer Recovery Icefields areas investigated geology three previously unvisited nunataks (Turner Nunatak, Pillinger Halliday Nunatak). undertook searching on ice surface via skidoo reconnaissance systematic developed a novel pulse induction metal detection system to search for englacial...
Abstract. Antarctic krill (Euphausia superba) and salps are major macroplankton contributors to Southern Ocean food webs also fished commercially. Managing this fishery sustainably, against a backdrop of rapid regional climate change, requires information on distribution time trends. Many data the abundance both taxa have been obtained from net sampling surveys since 1926, but much is stored in national archives, sometimes only notebooks. In order make these important accessible we collated...
Abstract Antarctica’s Pole of Inaccessibility (Southern (SPI)) is the point on Antarctic continent farthest from its edge. Existing literature exhibits disagreement over location. Using two revisions Scientific Committee Research’s Digital Database, we calculate modern-day positions for SPI around 10 years apart, based position “outer” coastline, i.e. boundary with ocean. These show that in year 2010 was 83° 54’ S, 64° 53’ E, shifting order 1 km per as a result changes similar magnitude...
Physiological comparisons are fundamental to quantitative assessments of the capacity species persist within their current distribution and predict rates redistribution in response climate change. Yet, degree which physiological traits conserved through evolutionary history may fundamentally constrain for adapt shift geographic range. Taxa that straddle major transitions provide opportunity test mechanisms underlying constraints how such influence range predictions. Here we focus on two...
The boreal copepod Calanus finmarchicus sequesters substantial amounts of carbon (C) in the deep layers North Atlantic Ocean through their contribution to “lipid pump.” This pump is driven by these zooplankton descending from surface spend prolonged periods at depth during which time they metabolise lipid reserves and a fraction suffer mortality. C. principally species but expatriated currents flowing northwards into Arctic regions such as Fram Strait, where it now able complete its life...
&lt;p&gt;Giant icebergs can greatly impact the mass, freshwater and nutrient budgets of ocean. They deposit large amounts at great distances from their origins, impacting upper-ocean stratification mixing, they be important vectors for micronutrient delivery with impacts on primary production carbon drawdown. Their advection, productivity blocking flows critical zooplankton regional ecosystem functioning, consequences higher trophic levels local fisheries. breakouts ice shelves...
&lt;p&gt;Icebergs impact the physical and biological properties of ocean along their drift trajectory by releasing cold fresh meltwater nutrients. This facilitates sea ice formation, fosters production influences local circulation. The intensity depends on amount meltwater. A68 was sixth largest iceberg ever recorded in satellite observations, hence had a significant potential to its environment. It calved from Larsen-C Ice Shelf July 2017, drifted through Weddell Scotia Sea...
&lt;p&gt;Ocean mixing around Antarctica is a key process that influences the vertical distributions of heat and nutrients, affecting glacier ice shelf retreats, sea formation marine productivity, with implications for regional ecosystems, global level climate. Here we show collapsing fronts associated calving events trigger internal tsunamis, propagation breaking which can lead to significant mixing. Observations one such event at West Antarctic Peninsula, during 3-20 megatonnes were...