Alexandra L. Post
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View article: Using handheld mobile laser scanning to quantify fine-scale surface fuels and detect changes post-disturbance in northern California forests
Using handheld mobile laser scanning to quantify fine-scale surface fuels and detect changes post-disturbance in northern California forests Open
The understory plays a critical role in the disturbance dynamics of forest, as it influences wildfire behavior. Unfortunately, the structure of understory fuels is difficult to quantify due to heterogeneity. LiDAR can measure changes in fo…
View article: Advancing Data Science Proficiency in the Earth and Environmental Sciences: How an Earth Data Science Program is Helping Researchers Rethink Their Approach to Data Analytics
Advancing Data Science Proficiency in the Earth and Environmental Sciences: How an Earth Data Science Program is Helping Researchers Rethink Their Approach to Data Analytics Open
Earth and Environmental Data Science (EDS) is a rapidly growing field that combines the earth and environmental sciences with statistics and computational methods to analyze large, complex datasets. Despite the availability of vast amounts…
View article: A Review of the Oceanography and Antarctic Bottom Water Formation Offshore Cape Darnley, East Antarctica
A Review of the Oceanography and Antarctic Bottom Water Formation Offshore Cape Darnley, East Antarctica Open
Antarctic Bottom Water (AABW) is the densest water mass in the world and drives the lower limb of the global thermohaline circulation. AABW is formed in only four regions around Antarctica and Cape Darnley, East Antarctica, is the most rec…
View article: Melting of Totten Glacier, East Antarctica since the Last Glacial Maximum Revealed by Beryllium Isotope Ratios of Marine Sediment
Melting of Totten Glacier, East Antarctica since the Last Glacial Maximum Revealed by Beryllium Isotope Ratios of Marine Sediment Open
View article: Circumpolar Deep Water upwelling is a primary source of 10Be in Antarctic continental shelf sediments
Circumpolar Deep Water upwelling is a primary source of 10Be in Antarctic continental shelf sediments Open
View article: Early sea ice decline off East Antarctica at the last glacial–interglacial climate transition
Early sea ice decline off East Antarctica at the last glacial–interglacial climate transition Open
Antarctic climate warming and atmospheric CO 2 rise during the last deglaciation may be attributed in part to sea ice reduction in the Southern Ocean. Yet, glacial–interglacial Antarctic sea ice dynamics and underlying mechanisms are poorl…
View article: Rule-based semi-automated tools for mapping seabed morphology from bathymetry data
Rule-based semi-automated tools for mapping seabed morphology from bathymetry data Open
Seabed morphology maps and data are critical for knowledge-building and best practice management of marine environments. To facilitate objective and repeatable production of these maps, we have developed a number of semi-automated, rule-ba…
View article: The FORCIS database: A global census of planktonic Foraminifera from ocean waters
The FORCIS database: A global census of planktonic Foraminifera from ocean waters Open
View article: Melting of Totten Glacier, East Antarctica since the Last Glacial Maximum Revealed by Beryllium Isotope and Grain Size of Marine Sediment Records
Melting of Totten Glacier, East Antarctica since the Last Glacial Maximum Revealed by Beryllium Isotope and Grain Size of Marine Sediment Records Open
The rapidly melting Totten Glacier of East Antarctica drains a basin containing ~3.5 m sea-level rise equivalent of ice, but the Totten Glacier dynamics and interaction with the Southern Ocean since the Last Glacial Maximum is not well und…
View article: The Antarctic Seafloor Annotated Imagery Database
The Antarctic Seafloor Annotated Imagery Database Open
Marine imagery is a comparatively cost-effective way to collect data on seafloor organisms, biodiversity and habitat morphology. However, annotating these images to extract detailed biological information is time-consuming and expensive, a…
View article: The International Bathymetric Chart of the Southern Ocean Version 2
The International Bathymetric Chart of the Southern Ocean Version 2 Open
View article: Cretaceous to Cenozoic controls on the genesis of the shelf-incising Perth Canyon; insights from a two-part geomorphology mapping approach
Cretaceous to Cenozoic controls on the genesis of the shelf-incising Perth Canyon; insights from a two-part geomorphology mapping approach Open
Perth Canyon is Australia's second largest submarine canyon, and its shelf-incising morphology contrasts with the more prolific slope-confined canyons that typify Australia's passive continental margin. The canyon has a sinuous course that…
View article: Modern dynamics, morphology and habitats of slope-confined canyons on the northwest Australian margin
Modern dynamics, morphology and habitats of slope-confined canyons on the northwest Australian margin Open
Repeat multibeam mapping of two slope-confined canyons on the northwest Australian margin provides new understanding of the processes that are active in shaping these environments. The Cape Range and Cloates canyons initiate on the mid to …
View article: Responses of Southern Ocean Seafloor Habitats and Communities to Global and Local Drivers of Change
Responses of Southern Ocean Seafloor Habitats and Communities to Global and Local Drivers of Change Open
Knowledge of life on the Southern Ocean seafloor has substantially grown since the beginning of this century with increasing ship-based surveys and regular monitoring sites, new technologies and greatly enhanced data sharing. However, seaf…
View article: Comment on tc-2021-8
Comment on tc-2021-8 Open
Understanding past retreat of Antarctic ice margins provides valuable insight for predicting how ice sheets may respond to future environmental change. This study, based on high resolution multibeam bathymetry from the nearshore region of …
View article: Breaking All the Rules: The First Recorded Hard Substrate Sessile Benthic Community Far Beneath an Antarctic Ice Shelf
Breaking All the Rules: The First Recorded Hard Substrate Sessile Benthic Community Far Beneath an Antarctic Ice Shelf Open
The seafloor beneath floating ice shelves accounts roughly a third of the Antarctic’s 5 million km 2 of continental shelf. Prior to this study, our knowledge of these habitats and the life they support was restricted to what has been obser…
View article: Antecedent control on active ice sheet retreat revealed by seafloorgeomorphology, offshore Windmill Islands, Antarctica
Antecedent control on active ice sheet retreat revealed by seafloorgeomorphology, offshore Windmill Islands, Antarctica Open
Understanding past retreat of Antarctic ice margins provides valuable insight for predicting how ice sheets may respond to future environmental change. This study, based on high resolution multibeam bathymetry from the nearshore region of …
View article: Controls Since the mid‐Pleistocene Transition on Sedimentation and Primary Productivity Downslope of Totten Glacier, East Antarctica
Controls Since the mid‐Pleistocene Transition on Sedimentation and Primary Productivity Downslope of Totten Glacier, East Antarctica Open
The rapidly thinning Totten Glacier on the Sabrina Coast, East Antarctica, is the primary drainage outlet for ice within the Aurora Subglacial Basin, which could destabilize under the current atmospheric warming trend. There is growing nee…
View article: Fuel Cell Manufacturing: Opportunities And Challenges
Fuel Cell Manufacturing: Opportunities And Challenges Open
NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract Session 1463 Fuel Cell Manufacturing: An Introduction to Opportunities and Challenges Al Post, Brad Rogers, Scott Danielson, Govindasam…
View article: Continental slope and rise geomorphology seaward of the Totten Glacier, East Antarctica (112°E-122°E)
Continental slope and rise geomorphology seaward of the Totten Glacier, East Antarctica (112°E-122°E) Open
The continental slope and rise seaward of the Totten Glacier and the Sabrina Coast, East Antarctica features continental margin depositional systems with high sediment input and consistent along-slope current activity. Understanding their …
View article: Sabrina Sea Floor Survey (IN2017-V01) Piston Core Images, Visual Logs and Grain Size Data Summaries IN2017-V01-C012-PC05
Sabrina Sea Floor Survey (IN2017-V01) Piston Core Images, Visual Logs and Grain Size Data Summaries IN2017-V01-C012-PC05 Open
This document presents images, colour description, colour analysis profiles and summary grain size data for individual core sections from piston core IN2017-V01-C012-PC05 collected during the Sabrina Sea Floor Survey on the RV Investigator…
View article: Upper slope processes and seafloor ecosystems on the Sabrina continental slope, East Antarctica
Upper slope processes and seafloor ecosystems on the Sabrina continental slope, East Antarctica Open
View article: Large‐Scale Intrusion of Circumpolar Deep Water on Antarctic Margin Recorded by Stylasterid Corals
Large‐Scale Intrusion of Circumpolar Deep Water on Antarctic Margin Recorded by Stylasterid Corals Open
We present centennial‐scale radiocarbon ( 14 C) records archived by deep sea stylasterid corals from the outer shelf and upper slope of the Antarctic margin. These novel stylasterids ( Errina spp.) were collected from the western Ross Sea …
View article: National and international collaboration to maximise and standardise Australian seabed mapping efforts
National and international collaboration to maximise and standardise Australian seabed mapping efforts Open
View article: Post-survey report: Interactions of the Totten Glacier with the Southern Ocean through multiple glacial cycles (IN2017-V01).
Post-survey report: Interactions of the Totten Glacier with the Southern Ocean through multiple glacial cycles (IN2017-V01). Open
The Sabrina Sea Floor Survey was a major marine geoscience expedition to the Antarctic margin which took place between 14 January and 7 March 2017. It sailed on the Australian Marine National Facility vessel RV Investigator. This document …
View article: Cross-disciplinarity in the advance of Antarctic ecosystem research
Cross-disciplinarity in the advance of Antarctic ecosystem research Open
View article: Submarine glacial landforms and interactions with volcanism around Sub-Antarctic Heard and McDonald Islands
Submarine glacial landforms and interactions with volcanism around Sub-Antarctic Heard and McDonald Islands Open
Unravelling the glacial history of Sub-Antarctic islands can provide clues to past climate and Antarctic ice sheet stability. The glacial history of many sub-Antarctic islands is poorly understood, including the Heard and McDonald Islands …
View article: Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2016 -Part A: General context of the establishment of MPAs and background information on the Weddell Sea MPA planning area-
Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2016 -Part A: General context of the establishment of MPAs and background information on the Weddell Sea MPA planning area- Open
Germany intends to present the Working Group on Ecosystem Monitoring and Management (WG EMM) the background document that provides the scientific basis for the evaluation of a marine protected area (MPA) in the Weddell Sea planning area. T…
View article: The seafloor geomorphology of the Windmill Islands, Wilkes Land, East Antarctica: evidence of Law Dome ice margin dynamics
The seafloor geomorphology of the Windmill Islands, Wilkes Land, East Antarctica: evidence of Law Dome ice margin dynamics Open
A high-resolution multibeam sonar dataset covering an area of ca. 33 km 2 was collected in the vicinity of the Windmill Islands (67°S, 110°E), Wilkes Land, East Antarctica. The new data permit visualisation of the nearshore seafloor morph…