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Mathematical datasets, statistical benchmarks, probability, optimization, operations research
2,491 datasets
Images of Polynyas forming process in the Ross Sea Marine Protected Area, produced by AMD_KOPRI for ecosystem research. The dataset was last updated in 2014.
WOA13 provides objectively analyzed climatological fields for temperature, salinity, and nutrients across the World Ocean. The dataset includes six decadal averages from 1955-2012 for temperature and salinity, with nutrient and oxygen data spanning 1878-2012. It was produced by NOAA's National Centers for Environmental Information using quality-controlled in situ profile data.
2012 research from AMD_KOPRI developed a mathematical model simulating chemical and isotopic transport in snow. The model incorporates hydraulic exchange between mobile and immobile water and isotopic exchanges with ice. It was validated using artificial rain-on-snow experiments with bromide tracer data.
Five week-long laboratory experiments examined the effects of ocean acidification on the pteropod Limacina helicina from Puget Sound. The study tested four carbon chemistry conditions, ranging from current summer surface levels to future deep water scenarios, measuring shell condition and survival. Data were collected by researchers and archived by NOAA NCEI from May to July 2012.
2003-08-26 to 2012-05-03 bathymetric data for the nearshore shelf environment of Agrihan Island in the Mariana Islands. The dataset was created by the NOAA National Centers for Environmental Information from multispectral WorldView-2 satellite imagery. Depths shallower than approximately 20 meters were derived using a multiple linear regression analysis of coastal, blue, green, and yellow spectral band values.
A 2012 dataset from ASAC Project 2794, hosted by NASA EarthData and the Australian Antarctic Data Centre, combines biological and physical oceanographic measurements. It uses animal-borne satellite-linked Conductivity-Temperature-Depth Satellite Relay Data Loggers (CTD-SRDLs) on adult female elephant seals to measure foraging patterns and net energy gain. The data aims to link predator foraging success to inter-annual variation in winter sea-ice extent and bottom water formation in the Southern Ocean.
Over 100 short-period and broadband seismographs recorded thousands of small icequakes on Mount Erebus volcano in Antarctica. The dataset, published by SCIOPS in 2012, examines seismic coda wavefields to estimate Green's functions and scattering properties. It supports research on multiple scattering and correlation function optimization for monitoring volcanic structures.
Global raster data assigns a unique value to each pixel representing a nation or territory. The dataset was produced by Columbia University's CIESIN in collaboration with IFPRI, The World Bank, and CIAT. It was last updated in July 2010.
AU_AADC provides a dataset of krill swarm characteristics derived from statistical models. It includes estimates of internal swarm density and depth from a 2006 survey and broader density estimates for February across a decade (2001-2010). The data covers the East Antarctic region between 30-120 degrees East longitude.
NOAA NCEI Accession 0088164 contains physical and chemical oceanographic data collected via bottle samples and CTD casts in the Gulf of Mexico. Measurements were taken from the R/V Gyre and R/V Pelican between April 2004 and July 2009. The data were submitted for the 'Mechanisms Controlling Hypoxia on the Louisiana Shelf' project to support modeling of regional hypoxia.
A 1900-onward global monthly precipitation anomaly reconstruction merges historical gauge data with modern satellite-era statistics. The dataset, documented by Smith et al. in 2012, is produced by SCIOPS and represents the latest in a series of improved reconstructions. It incorporates an annual first guess adjusted with monthly increments, canonical correlation analysis for oceanic observations, and reinjection of available gauge data.
Emissions data from cement production, detailing CO2 created by the calcination of limestone and fossil fuel combustion in kilns. The dataset is provided by the Carbon Dioxide Information Analysis Center (CDIAC) via CEOS_EXTRA and was last updated in 2008.
NASA's Multi-angle Imaging SpectroRadiometer (MISR) Level 3 product provides a daily statistical summary of key land surface parameters averaged over a month. The dataset includes average directional hemispherical reflectance (DHR), DHR for photosynthetically active radiation (DHR-PAR), fractional absorbed photosynthetically active radiation (FPAR), leaf area index (LAI), and normalized difference vegetation index (NDVI). Data collection for this version 2 product was completed in August 2007 by the LARC_CLOUD organization.
MI3DAER_002 provides a daily statistical summary of column aerosol optical depth at 555 nanometers and monthly aerosol type frequency histograms. The product is a global 0.5 by 0.5 degree geographic grid summary of Level 2 aerosol parameters, produced by NASA's LARC_CLOUD organization using data from the Multi-angle Imaging SpectroRadiometer (MISR) instrument. Data collection for this version was completed, with the last update recorded in August 2007.
A 2007 daily global summary product from NASA's Multi-angle Imaging SpectroRadiometer (MISR) instrument. It provides statistical summaries of land surface parameters, including directional hemispherical reflectance (DHR), fractional absorbed photosynthetically active radiation (FPAR), and NDVI, gridded at a 0.5-degree by 0.5-degree resolution. Data collection for this version 2 product is complete.
DGGE fingerprinting data analyzes bacterial community structures in soils from eight sites around Casey Station, Antarctica. The dataset includes 23 partial 16S rRNA gene sequences and examines correlations with environmental variables like pH and heavy metals. Research was led by Irene K. P. Tan and collaborators, with data last updated in December 2005.
Alaska Fisheries Science Center researchers conducted a fish age validation study on yellowfin sole and northern rockfish from 1987 to 2004. The study compares otolith Delta14C measurements from these species against reference chronologies from the eastern Bering Sea and Gulf of Alaska. It employs Bayesian data analysis and Markov Chain Monte Carlo simulation to estimate age determination bias and uncertainty.
A digital vector dataset represents the coastline of the Australian Antarctic Territory between 45 and 160 degrees east. It was jointly developed by Geoscience Australia's National Mapping Division and the Australian Antarctic Division, with data superseding a 2001 version and validated in 2003. The dataset includes three coverages: ice features, coastal features, and island point features.
Macrobenthic infauna data from 15 stations in the Chirikov Basin, northern Bering Sea, compares community structure between 1986 and 2002. The dataset includes measurements of abundance, biomass, and diversity for taxa including Ampeliscid amphipods, other Crustacea, Mollusca, and Polychaeta. It was collected by SCIOPS via two research cruises in those years.
USGS, in cooperation with SFWMD and Broward County, developed this point data layer containing hydrogeologic unit depths and generalized land-surface elevations for 321 selected sites. The data was digitized from published cross sections and contour maps for water-resources investigations. It was published as part of a 1992 report (WRIR 92-4061) and last updated in the system in 2002.