The ORNL DAAC announces the release of two data sets from the Carbon category of the International Satellite Land-Surface Climatology Project (ISLSCP) Initiative II.
The GlobalView data sets, prepared by K.A. Masarie, contain synchronized and smoothed time series of atmospheric CO2 concentrations at selected sites that were created using the data extension and integration techniques.
- ISLSCP II GlobalView: Atmospheric Methane Concentrations : Largest period of coverage is from 1984 to 1998 with some sites having more or less temporal coverage.There are 74 files with this data set.
- ISLSCP II GlobalView: Atmospheric CO2 Concentrations : Largest period of coverage is from 1979 to 2001 with some sites having more or less temporal coverage. There are 92 files with this data set.
The data products were derived from selected continuous and discrete land-surface, ship, aircraft, and tower observations; weight files; summaries of seasonal patterns, diurnal patterns (where relevant), and atmospheric variability; the derived marine boundary layer (MBL) reference matrix used in the data extension process; uncertainty estimates; and extensive documentation.
International Satellite Land-Surface Climatology Project (ISLSCP)
The ISLSCP Initiative II data collection is designed to support modeling studies of the global carbon, water and energy cycle. This data collection contains 50 global time series spanning the ten-year period 1986 to 1995 compiled under the guidance of Forrest Hall and colleagues at NASA's Goddard Space Flight Center. The data for Initiative II were acquired from a number of U.S. and international agencies, universities, and institutions, then co-registered to equal-angle grids of one degree, one-half and one-quarter degree resolution and reformatted into a common ASCII format.
The collection includes a variety of remotely sensed data sets ranging from visible to microwave wavelengths. The data sets also include improved topography, surface radiation, near-surface meteorology, precipitation, runoff, soils, and vegetation data sets that can be used in a variety of interdisciplinary research activities. Several data sets to support global carbon and biogeochemical studies are also provided.
The ORNL DAAC is a NASA-funded data center archiving and distributing terrestrial ecology and biogeochemical dynamics data.