11 datasets

NASA Earthdata CMR2022 · collection

These data reflect the metal content of some Casey and Wilkes melt lakes and streams. In melt lakes, the dissolved metal concentration and diffusive gradient in thin-film technique (DGT) with a Chelex-100 binding resin to measure DGT-labile metal concentrations. In melt streams, dried sediments were analysed using a strong acid, weak acid, and water extractions, as well as using DGT probes. Physic

NASA Earthdata CMR + NASA Data Portal2022 · Astronomical catalogue

DISCOVERAQ_Texas_Aerosol_AircraftInSitu_P3B_Data contains in situ aerosol data collected onboard NASA's P-3B aircraft during the Texas (Houston) deployment of NASA's DISCOVER-AQ field study. Instruments utilized to collect data found in this data product include the PSAP, APS, CPC, CCN, Nephelometer, LAS, PILS, , TOC, SMPS, SP2 and UHSAS. This data product contains data for only the Texas deployme

NASA Earthdata CMR + NASA Data Portal2022 · Astronomical catalogue

DISCOVERAQ_California_Aerosol_AircraftInSitu_P3B_Data contains in situ aerosol data collected onboard NASA's P-3B aircraft during the California (San Joaquin Valley) deployment of NASA's DISCOVER-AQ field study. Instruments utilized to collect data found in this data product include the PSAP, APS, CPC, CCN Counter, Nephelometer/PI-Neph, LAS, PILS, Ion Chromatographs, PILS/Total Organic Carbon Anal

NASA Earthdata CMR2017 · collection

Minicosm design: Three successive experiments to a maximum incubation of 14 days were performed from mid November to early January in the summer of 2002/03 in a temperature controlled shipping container housing six 500 L polythene tanks or minicosms. Domes of UV transmissive PMMA in the roof of the container directly above the minicosms allowed ambient sunlight to be reflected to the tanks through

NASA Earthdata CMR2017 · collection

Minicosm design: Three successive experiments to a maximum incubation of 14 days were performed from mid November to early January in the summer of 2002/03 in a temperature controlled shipping container housing six 500 L polythene tanks or minicosms. Domes of UV transmissive PMMA in the roof of the container directly above the minicosms allowed ambient sunlight to be reflected to the tanks through

NASA Earthdata CMR2017 · collection

Minicosm design: Three successive experiments to a maximum incubation of 14 days were performed from mid November to early January in the summer of 2002/03 in a temperature controlled shipping container housing six 500 L polythene tanks or minicosms. Domes of UV transmissive PMMA in the roof of the container directly above the minicosms allowed ambient sunlight to be reflected to the tanks through

NASA Earthdata CMR2002 · collection

Metadata record for data expected from ASAC Project 919. See the link below for public details on this project. The plankton dynamics of Ace Lake, a saline, meromictic basin in the Vestfold Hills, eastern Antarctica was studied between December 1995 and February 1997. The lake supported two distinct plankton communities; an aerobic microbial community in the upper oxygenated mixolimnion and an ana

NASA Earthdata CMR2001 · collection

Beaver Lake, a large epishelf lake in Eastern Antarctica was sampled on two occasions during the austral summer of 2000. Two sites, one 1km offshore and another 6km offshore were sampled at intervals to depths of 40m and 110m respectively. The lake is an end member of ultra-oligotrophic lake systems with a very low carbon pool. Dissolved organic carbon concentrations ranged between 95-652 micro gr

NASA Earthdata CMRcollection

Data from J. Priscu and C. Foreman, Montana State University. WAIS Divide core (WDC05Q, Stick D). Ice core samples were decontaminated following (Christner et al., 2005 Icarus, 174: 572-584) and handled in a class 100 environmental chamber. Meltwater was pre-filtered (30um) and gently sonicated prior to staining biotic particles with 5uM SYTO 60 (Invitrogen) for 5 min. Counts of biotic and abiotic

NASA Earthdata CMRcollection

Antropogenic lead (Pb) has been found in Antarctic seawater, surface snow and ice-cores. In this work the researchers analyzed a 3000 year record of lead concentration in lake sediments affected by penguin droppings. They found that lead concentration in penguin droppings has significantly increased during the last 200 years, especially in the last 50 years, as compared to low and stable lead leve

NASA Earthdata CMRcollection

Data files containing the different chemical and biological parameters obtained at each seawater sampling station. pHSWS25: seawater pH at the SeaWater Scale and referred to 25C, measured by the spectrophotometric method following Clayton and Byrne (DSR, 1993). TA: total alkalinity in seawater (mol kg-1 ) measured by double end-point open-cell potentiometric method following Pérez and Fraga (Mar.