The GRENE-TEA model intercomparison project (GTMIP) Stage 1 forcing data set

Abstract

Abstract. Here, the authors describe the construction of a forcing data set for land surface models (including both physical and biogeochemical models; LSMs) with eight meteorological variables for the 35-year period from 1979 to 2013. The data set is intended for use in a model intercomparison study, called GTMIP, which is a part of the Japanese-funded Arctic Climate Change Research Project. In order to prepare a set of site-fitted forcing data for LSMs with realistic yet continuous entries (i.e. without missing data), four observational sites across the pan-Arctic region (Fairbanks, Tiksi, Yakutsk, and Kevo) were selected to construct a blended data set using both global reanalysis and observational data. Marked improvements were found in the diurnal cycles of surface air temperature and humidity, wind speed, and precipitation. The data sets and participation in GTMIP are open to the scientific community

Conceptual Model to Simulate Long-term Soil Organic Carbon and Ground Ice Budget with Permafrost and Ice Sheets (SOC-ICE-v1.0)

“…Omsk in southwestern Siberia (seasonally frozen ground) has continental characteristics and has been ice-free. Yakutsk is in East Siberia (continuous permafrost, Miyazaki et al 2015, Sueyoshi et al 2016. Anaktuvuk and Yakutsk are in areas that include the ice-rich permafrost (Yedoma) region (Murton et al 2015, Kanevsky et al 2011.…”

“…The locations denote the grid points closest to each specified site shown in Fig.5a. Of these, three sites are in Alaska: Anaktuvuk on the North Slope (continuous permafrost,Jones et al 2009, Hu et al 2015, Fairbanks in Interior Alaska (discontinuous permafrost,Miyazaki et al 2015, Sueyoshi et al 2016, and Sitka in southeast Alaska on the Pacific coast (seasonally frozen ground). Sitka is the warmest and most pluvial site of the eight.…”

“…Three sites are in Eurasia. Kevo in northern Finland(Miyazaki et al 2015, Sueyoshi et al 2016, which was covered by the Fennoscandia Ice Sheet during the Last Glacial period, has oceanic influence and in the discontinuous permafrost zone.…”

Numerical model to simulate long-term soil organic carbon and ground ice budget with permafrost and ice sheets (SOC-ICE-v1.0)

“…5a. Of these, three sites are in Alaska: Anaktuvuk on the North Slope (continuous permafrost, Jones et al, 2009;Hu et al, 2015;Iwahana et al, 2016), Fairbanks in interior Alaska (discontinuous permafrost, Miyazaki et al, 2015;Sueyoshi et al, 2016), and Sitka in southeast Alaska on the Pacific coast (seasonally frozen ground). Sitka is the warmest and most pluvial site of the eight.…”

Reconciliation of top-down and bottom-up CO 2 fluxes in Siberian larch forest

“…All the GTMIP models were driven by a common meteorological data. The model input data for the Yakutsk site were created from the nearest-point 6 hourly ERA Interim reanalysis data, which was then statistically fitted to the site using the 2005-2011 tower observation values (see table 2 in Sueyoshi et al (2016)). Models ran for the period from 1980-2013.…”