115 datasets

NASA Earthdata CMR2026 · Image data

The data set presents snow pit measurements collected during the NASA SnowEx October 2023 Intensive Observation Period (IOP) in Alaska, USA. In total, 127 snow pits were excavated between the five sites at locations representing a range of snow depth, vegetation, and topographic conditions. Three study areas represented boreal forest snow near Fairbanks, AK: Farmers Loop Creamers Field (FLCF), Car

NASA Earthdata CMR2026 · Image data

The data set presents snow pit measurements collected during the NASA SnowEx October 2022 Intensive Observation Period (IOP) in Alaska, USA. In total, 186 snow pits were excavated between the five sites at locations representing a range of snow depth, vegetation, and topographic conditions. Three study areas represented boreal forest snow near Fairbanks, AK: Farmers Loop Creamers Field (FLCF), Car

NASA Earthdata CMR2025 · Table · CSV

This data set contains snow pit data collected from 13 snow pits excavated during the NASA SnowEx23 field campaign near Fairbanks, Alaska. The snow pits were located across three field sites: the Caribou/Poker Creek Research Watershed, Farmer’s Loop/Creamers Field, and Delta Junction. The data was collected during April 2023 concurrent with the data published as <a href="https://doi.org/10.5067/MN

NASA Earthdata CMR2025 · Image data

The data set presents snow pit measurements collected during the NASA SnowEx March 2023 Intensive Observation Period (IOP) in Alaska, USA to use for calibration and validation with coincident airborne SWESARR and lidar measurements as part of the strategy focused on snow water equivalence (SWE) and snow depth (HS). In total, 170 snow pits were excavated between the five sites at locations represen

NASA Earthdata CMR2024 · Image data

The data set is a time-series of snow pit measurements obtained by the SnowEx community during the 2020 campaign. Between October 2019 and May 2020, data were collected from 454 snow pits at 12 regional locations throughout California, Colorado, Idaho, New Mexico, and Utah, USA. At each of the locations, between 1 and 11 sites covering a range of conditions (terrains, snow depths, etc.) were chose

NASA Earthdata CMR2022 · collection

Radiolarian data from IN2017_V01 These data were generated by Kelly-Anne Lawler (corresponding author, kelly-anne.lawler@anu.edu.au) with taxonomic assistance from Dr Giuseppe Cortese. These data are based on samples collected during voyage IN2017_V01 of the RV Investigator, co-chief scientists, Leanne Armand and Phil O’Brien. The IN2017-V01 post-cruise report is available through open access via

NASA Earthdata CMR2021 · Image data

This data set contains snow pit measurements obtained as part of the SnowEx 2020 campaign at the Grand Mesa, Colorado, USA site in Autumn 2019. 21 locations were visited for snow pit observations. Some snow pit measurements are incomplete due to shallow or discontinuous snow cover.

NASA Earthdata CMR2021 · Image data

This data set contains snow pit observations from the SnowEx 2020 Grand Mesa Intensive Observation Period. Data were collected from 154 snow pits on Grand Mesa, Colorado between 27 January and 12 February 2020. The main parameters for this data set are snow temperature, snow depth, snow density, snow stratigraphy, snow grain size, liquid water content, and snow water equivalent. In addition to dat

NASA Earthdata CMR2020 · collection

An ecotoxicological risk assessment of groundwater from two Macquarie Island fuel spill sites was conducted to assess the level of risk posed by the sites to the adjacent marine receiving environment. Experiments were conducted on Macquarie Island during the summer season of 2017/18. The two fuel spill sites (known as: Fuel Farm and Power House, see file: Map-macquarie_building_and_structures_1467

NASA Earthdata CMR2020 · collection

This dataset contains the abundance of diatom species found in the surface sediments from cores collected as part of the CEAMARC (Collaborative East Antarctic Marine Census) mission. The cores were collected from the George V basin along the Antarctic coast. Latitude, longitude and water depth data are included for each site. Sediments were prepared following standard diatom preparation techniques

NASA Earthdata CMR2020 · collection

These data come from a set of experiments conducted on the coastal waters near Davis Station in January 2017. The first set of data are from a transect near the Sorsdal glacier and out to sea, to characterise DMSP-mediated phytoplankton bacteria interactions along a salinity gradient. The second data set are from a series of incubation experiments to gain deeper insight into the role of various in

NASA Earthdata CMR2020 · collection

This record contains a summary of all data associated with the Windmill Islands long term vegetation monitoring program, conducted between 2000 and 2013, under projects ASAC_1313, AAS_3042 and AAS_4046. This record provides information about field collections and sampling methods, as well as providing raw data for vegetation cover/health, species abundance, moisture availability and vegetation sur

NASA Earthdata CMR2020 · collection

This data set was collected from two minicosm experiments conducted at Davis Station, Antarctica. 1. Variance experiment - 2013/14 summer season 2. Ocean acidification experiment - 2014/15 summer season It includes: - description of methods for all data collection and analyses. - environmental data logged throughout the experiment; nutrients, temperature, light climate. - flow cytometry counts; au

NASA Earthdata CMR2020 · collection

Samples were collected using a prototype basket sampler that concentrated phytoplankton from the underway water supply in the OG lab onboard Aurora Australis. The sampler filtered water during transit, and the distance travelled and the approximate volume of water sampled was recorded. A phytoplankton net tow was collected at each station. The majority of imaging was undertaken using a Leica DMLB2

NASA Earthdata CMR2019 · collection

This metadata record contains an Excel spreadsheet with Operational Taxonomic Units (OTUs) gained from Eukaryotic 18S rDNA PCR amplification and high-throughput sequencing of samples from Biofilm slides deployed as part of the antFOCE experiment in the austral summer of 2014/15 at Casey station, East Antarctica. Refer to antFOCE report section 4.5.3 for deployment, sampling and analysis details. h

NASA Earthdata CMR2019 · collection

Thin sections were prepared at the University of Tasmania. Rocks were washed, cut and dried. 30 micron thick polished thin sections were prepared. The thin sections were described with a microscope at the University of Tasmania. Mineral types and abundances were characterised for each thin section. The composition of the rocks are listed in the description. The composition was determined through X

NASA Earthdata CMR2019 · collection

Thin sections were prepared at the University of Tasmania. Rocks were washed, cut and dried. 30 micron thick polished thin sections were prepared. The thin sections were described with a microscope at the University of Tasmania. Mineral types and abundances were characterised for each thin section. The composition of the rocks are listed in the description. The composition was determined through X

NASA Earthdata CMR2019 · collection

An unreplicated, six-level dose-response experiment was conducted using 650 L incubation tanks (minicosms) adjusted to fugacity of carbon dioxide (fCO2) from 343 to 11641 uatm. The minicosms were filled with near-shore water from Prydz Bay, East Antarctica and the protistan composition and abundance was determined by microscopy analysis of samples collected during the 18 day incubation. Abundant t

NASA Earthdata CMR2019 · collection

Plane-polarized and cross-polarized thin section images of basalt samples from Macquarie Ridge Complex. The MRC samples include basalts collected from Macquarie Island, the only exposed portion of the submarine Macquarie Ridge, by R. Merle and K. Evans during a field trip in November 2017, and dredge samples collected by the National Institute of Water and Atmospheric Research, New Zealand, during

NASA Earthdata CMR2019 · collection

Seeds of twelve plant species were collected from Macquarie Island during January and February 2013. The seeds were used in a series of laboratory-based tests during 2013, at the University of Wollongong. Tests were conducted to determine species suitably for use in laboratory-based toxicity testing, using germination success and seedling growth (shoot and root length) as end points. Two soil type

NASA Earthdata CMR2019 · collection

This data record is closely associated with metadata ID: AAS_2933_FuelToxicityTerrestrial_MacquarieIsland-Springtails-TomMooney, for which full citation details are: Mooney, T., Wasley, J., Andrew, N.R., King, C.K. (2018, updated 2019) Response of Macquarie Island springtails to diesel fuel contaminated soils under field-realistic exposure conditions Australian Antarctic Data Centre - doi:10.26179

NASA Earthdata CMR2018 · collection

This data record describes work conducted by Thomas Mooney on Macquarie Island during the 2008/09 and 2009/10 field seasons. The experimental design of this work included sampling three sites located in uncontaminated areas, within the vicinity of the Macquarie Island research station. One transect (length: 50 m) was located per site; each transect spanned a soil carbon gradient, from sandy to pea

NASA Earthdata CMR2018 · collection

Two toxicity tests were conducted in the Davis station laboratories in December 2010. Tests used locally collected amphipods of the species Orchomenella pinguides. The tests were conducted by Bianca Sfiligoj, as part of her PhD research (Sfiligoj 2013), with results published in (Sfiligoj et al. 2015). Field and laboratory work was conducted under project AAS 2933, with analysis and write-up compl

NASA Earthdata CMR2018 · collection

East Antarctica has shown little evidence of warming to date with no coherent picture of how climate change is affecting vegetation. Here we show that vegetation in the Windmill Islands, East Antarctica is changing rapidly in response to a drying climate. This drying trend is evident across the region, demonstrated by changes in isotopic signatures measured along moss shoots, moss community compos

NASA Earthdata CMR2018 · collection

The body surface, mouth, gills, internal organs and tissues of 368 teleost fish of 26 species from Prydz Bay, Heard Island, Macquarie Island, Davis Station and Casey Station in Antarctica were examined for parasites. At least eight species of Monogenea, seven species of Copepoda, and five or six species of Acanthocephala were recorded. Overall, the fauna of Monogenea and Copepoda of Antarctic fish