8 datasets

NASA Earthdata CMR2021 · collection

Gross Primary Production Six depths were sampled per CTD station ranging from near-surface to 125 m. Sample depths were based on downward fluorescence profiles and two of six samples always included both near-surface (approximately 5-10 m) and the depth of the chlorophyll maximum where applicable. Photosynthetic rates were determined using radioactive NaH14CO3. Incubations were conducted according

NASA Earthdata CMR2017 · collection

This data set was collected from a ocean acidification minicosm experiment performed at Davis Station, Antarctica during the 2014/15 summer season. It includes: - description of methods for all data collection and analyses. - marine microbial community data; Chlorophyll a concentration, particulate organic matter concentration (carbon and nitrogen), bacterial cell abundance. - phytoplankton primar

NASA Earthdata CMRcollection

Samples were collected in the bay of Kongsfjorden (Svalbard) in August 2007 and June 2008. Up to 8 stations located along a transect from a glacier towards the open sea were sampled weekly to examine temporal variation in microbial parameters. Abundances of bacteria and viruses were measured using flow cytometry and bacterial production was determined by 3H-leucine incorporation. Dark inorganic ca

NASA Earthdata CMRcollection

The authors have measured 14C age since May, 1987. In this paper, we report 40 ages of the samples measured before 1992 and also describe the related informations for each sample. The input data capacity of latitude and longitude values are limited only to degrees. The exact values are as follows: Min. Latitude: 40deg. 15min. N Max. Latitude: 41deg. 30min. N Min. Longitude: 140deg. 15min. E Max. L

NASA Earthdata CMRcollection

We investigated C-14 specific activity of farm products and marine products which were collected from the Rokkasho area in Aomori prefecture from 1988 to 1990. The measured C-14 specific activity of farm products was almost equal to one another with the averaged C-14 specific activity of 0.261 Bq/gEC. On the other hand, C-14 specific activity of marine products was slightly lower than those of far

NASA Earthdata CMRcollection

The rate of direct runoff was determined after a heavy rain fall in the Iwami River drainage (ca. 100km2), based on changes in hydrogen and oxygen isotopic ratios and tritium content of river water. The runoff of dissolved components was also estimated from the change in chloride content. Isotopic and chemical characters of base flow were examined at 15 points within the drainage. The latitude and

NASA Earthdata CMRcollection

The authors present the following 4 remarks as the results of caron-14 measurement in 1989-1993. (1) The sample collected at Januma, Sannohe, coincided with that excavated from Hachinohe tephra. (2) The sample collected at Akemi, Tohoku-cho, coincided with that excavated from Ofudo tephra. (3) The eruption of Towada volcano in Ofudo tephra happened about 28,000 years ago. (4) The hiba forest at Sa

NASA Earthdata CMRcollection

We have measured tritium concentrations in the environmental water samples using a liquid scintillation counting system since 1987. In this report we describe the technical procedures to obtain tritium concentrations and show the various tritium levels in water samples revealed in the Hachinohe area. The input data capacity of latitude and longitude values are limited only to degrees. The exact va