Search datasets

178 datasets found

• Biota Percent Cover Derived from Benthic ROV Video Transect, Lake Vanda, 2022

  Antarctica New Zealand

  This metadata record represents a ROV video transect of benthic biota to 34 m depth to quantify the percentage cover of lift-off mat accumulating under the ice surface. The size, shape and spacing of the pinnacles will be attempted. GET DATA: ian.hawes@waikato.ac.nz

  Created 25 March 2025 • Updated 25 March 2025

• Meteorological Space-Time Profiles of the Ross Sea Region's Atmospheric...

  Antarctica New Zealand

  Air temperature, pressure, velocity, relative humidity measurements from near-surface up to around 2km above sea level were taken along the path of four height controlled free floating meteorological balloons released from Terra Nova Bay and flew over the polynya, sea ice and open waters of the Ross Sea. These data were used to investigate localized...

  Created 25 March 2025 • Updated 25 March 2025

• Benthic Community Assemblage Data at Cape Evans, 2000-Present

  Antarctica New Zealand

  Repeat observations on benthic habitat and biodiversity from our long term monitoring suite at Cape Evans, a site that was first surveyed in 2001/02.This permanent transect (20 m depth) has been re-surveyed ~12 times since it was established in 2000/01 This dataset allows us to linkages between benthic community/habitat characteristics to sea ice...

  Created 25 March 2025 • Updated 25 March 2025

• Snowfall and Vertical Wind Measurements from Microrain Radar Systems, Ross...

  Antarctica New Zealand

  The microrain radar system (MRR2) is a compact 24.23GHz FM-CW which measures accurate estimates of snowfall, the size distribution of snow and the fall velocity of hydrometeors. Rain rates and the characteristic fall velocity are derived. See MRR2 specifications: https://metek.de/product/mrr-2/

  Created 25 March 2025 • Updated 25 March 2025

• Drill hole measurements of fast ice and sub-ice platelet layer thickness,...

  Antarctica New Zealand

  The thicknesses of sea ice and sub-ice platelet layer were measured at regular intervals on fast ice in McMurdo Sound, Antarctica in November and December of 2011. Thirty-metre cross-profiles were established at each site, and snow depths were measured at 0.5 m intervals along the transect lines with a metal ruler. A mean snow depth for each site was...

  Created 25 March 2025 • Updated 25 March 2025

• Profile temperature, salinity, and hydrostatic pressure from CTD casts in...

  Antarctica New Zealand

  Full-depth CTD profiles taken on along-sound and cross-sound transects of McMurdo Sound. Eleven stations with six independent sites were visited. Potential temperature (theta) (measured); Units: °C; Observation Type: in situ; Sampling Instrument: CTD - specific model; Sampling and Analyzing Method: SBE19+ CTD profiler SALINITY (measured); Units: psu;...

  Created 25 March 2025 • Updated 25 March 2025

• Oceanographic Mooring: Continuous Temperature, Salinity, and Current Flow...

  Antarctica New Zealand

  The metadata record represents a surface mounted ceanographic mooring (-77.891050, 166.258333) deployed in McMurdo Sound. GET DATA: natalie.robinson@vuw.ac.nz

  Created 25 March 2025 • Updated 25 March 2025

• Drill Hole Measurements of Fast-Ice and Sub-Ice Platelet Layer Thickness,...

  Antarctica New Zealand

  This metadata record represents measurements of: - Total ice - Sea ice bottom - Sea Ice - SIPL - Free-board - Snow - Water depth GET DATA: natalie.robinson@vuw.ac.nz

  Created 25 March 2025 • Updated 25 March 2025

• In Situ Flask and Cylinder Air Sampling: Greenhouse Gases and Isotopes,...

  Antarctica New Zealand

  Gas samples (CO2, CH4, CO, N2O, 13CO2, 14CH4, 13CO, C18O, 14CO) are collected from an inlet atop of a mast 5 metres above ground level in North sector wind conditions. Flasks and cylinders are analysed back at NIWA Greta point Gaslab. The sampling was established in November 1989. Samples are only taken when wind is from the Northerly sector and above...

  Created 25 March 2025 • Updated 25 March 2025

• Oceanographic Mooring (Conductivity, Temperature, Pressure, Currents) at...

  Antarctica New Zealand

  An oceanographic mooring at the Kamb Ice Stream site 3 borehole (-82.6285, -156.3046) - consisting of two RBR Concertos (CTDs) to measure conductivity, temperature, and pressure and two Nortek Aquadopp current meters. The instruments are located at 555 m and 510 m below sea level (Figure 20). Figure 20 shows the final configuration and deployment...

  Created 25 March 2025 • Updated 25 March 2025

• X-ray Computed Tomography (CT) Greyscale Data, Laminae Counts,...

  Antarctica New Zealand

  This data publication contains the X-ray computed tomography (CT) greyscale data, manual laminae counts, light laminae sand percent data, highly-branched isoprenoid (HBI) diene data, and XRF silicon (Si) and titanium (Ti) peak areas for IODP sediment core 318-U1357B. IODP sediment core 318-U1357B is ~170 m long and was collected in February 2010 in the...

  Created 25 March 2025 • Updated 25 March 2025

• Scaled Images of Suspended Frazil Crystals, McMurdo Sound, 2022

  Antarctica New Zealand

  This metadata record represents in-situ passive observations of suspended frazil ice from a hydrohole (-77.89475, 166.64835) in McMurdo Sound. These data were used in combination with the Accoustic Zooplankton Fish Profiler (AZFP) measurements which took simultaneous measurements at the same hydrohole (see cross-referenced metadata record). Comprising a...

  Created 25 March 2025 • Updated 25 March 2025

• Aerosol Concentration and Size with a GRIMM Aerosol Instrument, Upper...

  Antarctica New Zealand

  This metadata record represents twelve days of high resolution aerosol data providing measurement of aerosol concentration and size (-74.020464, 161.574676). GET DATA: holly.winton@vuw.ac.nz

  Created 25 March 2025 • Updated 25 March 2025

• Carbon Release Estimates, Southern Victoria Land, 2024

  Antarctica New Zealand

  This metadata record represents carbon release estimates generated from over 400 samples collected across the McMurdo Dry Valleys/Southern Victoria Land region. Samples were analysed for rock magnetism, dispersed organic carbon, and rock geochemistry. Samples at Beacon Heights were also analysed for coal petrology. Samples were collected at: - Upper...

  Created 25 March 2025 • Updated 25 March 2025

• Oceanographic Mooring (CTD, Turbidity, ADCP, Turbulence) at Kamb Ice Stream...

  Antarctica New Zealand

  Data target a major subglacial outlet river emerging from beneath the Kamb Ice Stream (KIS). These data were used to determine both the role of water beneath the ice sheets and the ice-ocean interactions that take place once this water emerges into the ice shelf cavity. GET DATA: craig.stevens@niwa.co.nz

  Created 25 March 2025 • Updated 25 March 2025

• Automated Weather Station Measurements, Joyce Glacier, 2008-2010

  Antarctica New Zealand

  14-month record of automatic weather station (AWS) observations on Joyce Glacier. The AWS was installed on Joyce Glacier at (-78.02075000, 163.79346667), roughly 400 m above sea level on 26 November 2008 and removed on 31 January 2010. Measurements were taken every 300 s and stored as 15 min averages on a data logger. Parameters and Instruments: - Air...

  Created 25 March 2025 • Updated 25 March 2025

• Antarctic Toothfish Recruitment - Interannual Variability

  Antarctica New Zealand

  These Lagrangian modelling data attempt to explain Antarctic toothfish (Dissostichus mawsoni) recruitment fluctuations and show how sea-ice drift impacts the buoyant eggs and the overall recruitment of juveniles reaching the Amundsen shelf break. This metadata record represents: 1. Trajectory data for particles for the primary mode, seeded over the...

  Created 25 March 2025 • Updated 25 March 2025

• GNSS Measurements, Ross Ice Shelf (HWD2), 2015

  Antarctica New Zealand

  Continuous measurements were made with ten Trimble R-6 and R-10 GNSS receivers to measure ice motion and monitor ice deformation. GET DATA: christina.hulbe@otago.ac.nz

  Created 25 March 2025 • Updated 25 March 2025

• Basement Topography and Sediment Thickness Beneath Antarctica's Ross Ice...

  Antarctica New Zealand

  Depth to the magnetic basement beneath Antarctica's Ross Ice Shelf was determined from Werner deconvolution of ROSETTA-Ice airborne magnetic data. This process was constrained by offshore seismic data which was tied to the Ross Ice Shelf with Operation Ice Bridge IceBridge airborne magnetic data. Using a sub-ice shelf bathymetry model, we calculated the...

  Created 25 March 2025 • Updated 25 March 2025

• Diatom Distribution in IODP Hole 318-U1357B

  Antarctica New Zealand

  This data publication contains the relative abundances of the Fragilariopsis curta group (F. curta and F cylindrus) and the Thalassiosira antarctica group (resting spores and vegetative cells of T. antarctica cold variety) versus depth (in meters below sea-floor) and age (in years Common Era) in core IODP U1357B. Core IODP U1357B was retrieved in the...

  Created 25 March 2025 • Updated 25 March 2025