Natural places names dataset at 1:1000 000 in Sanjiangyuan region (2017)

This data comes from the National Geographic Information Resources Catalogue Service System, which was provided free to the public by the National Basic Geographic Information Center in November 2017. We have spliced and cut the source of the three rivers as a whole, so as to facilitate the use of the study of the source area of the three rivers. The data trend is 2017. This data set is composed of 1:1 million natural place names (AANP) in Sanjiangyuan area, including traffic element names, memorial sites and historic sites, mountain names, river system names, marine geographical names, natural geographical names, etc. Natural Place Name Data (AANP) Attribute Item Names and Definitions: Attribute Item Description Fill in Example CLASS Toponymic Classification Code NAME in Chinese words PINYIN in Chinese Pinyin

0 2021-04-19

Selection criteria and database of international fragile ecosystem National Parks

This data set contains the selection criteria and database of international fragile ecosystem national parks. Typical countries such as the United States, Canada, Australia, New Zealand, Norway, Sweden, South Africa and Tanzania are selected as representatives Table 1 includes: selection criteria for different levels, including 4 indicators for the first level, 16 indicators for the second level, and 72 indicators for the third level; Table 2 includes the list of national parks in typical countries such as the United States, Canada, Australia, New Zealand, Norway, Sweden, South Africa, Tanzania and other typical countries, and the selected indicators include the country, the name of the National Park, the protected time and supervision time, area, description, IUCN management type, governance type, management organization and international standards.

0 2020-07-20

Three sets of historical reanalysis climate datasets in Central Asia (1979-2014)

The Central Asia climate data set comes from three recently developed global reanalysis data sets. Merra uses the latest version of the global earth observation system (GEOS-5), which can absorb satellite radiation and conventional observations. Era interim is a global land surface reanalysis data set, which is generated at T255 (80km) horizontal resolution. The product update is about one month delayed from real-time. CFSR is one of the latest global reanalysis climate data sets, which has been widely used in climate change research. These datasets have different spatial resolutions and cover 1979-2014. Atmospheric reanalysis data is driven by a variety of data, combined with observation data under strict quality control, using data assimilation techniques and numerical prediction models to obtain historical observation data. In recent years, the new generation of historical reanalysis data is suitable for studying the climate pattern of Central Asia with high spatial heterogeneity of precipitation and complex topography due to its high spatial resolution. More accuracy verification and applicability of this data can be referred to: Hu Z , Zhang C , Hu Q , et al. Temperature Changes in Central Asia from 1979 to 2011 Based on Multiple Datasets*[J]. Journal of Climate, 2014, 27(3):1143-1167.

0 2020-01-16

Data set of total mercury in leaves of common tree species in the East and south of Qinghai Tibet Plateau (2008)

This dataset includes the concentrations and spatial pattern of mercury (Hg) in the foliage of the local tree species over the easteran and the southern Tibetan Plateau. Fifty-three leaf samples were collected, and cold vapor atomic fluorescence spectrophotometry (CVAFS) was used to analyse the Hg contents. The limit of detection (LOD) for this method is 1.8 ng/g. The standard reference material, foliage GB GSW-11, which is supplied by National Institute of Metrology P.R.China, was also analyzed for assessing the accuracy of this method, and the recoveries of this method were 94.6%±9.7%. This dataset will provide the informations of foliage absoprtion to Hg over the Tibetan Plateau.

0 2019-10-24

Dataset of oxygen isotope and major ions from Geladaindong ice core (Version 1.0) (1477-1982)

Geladaindong ice core records could provide a unique opportunity for studying climatic and environmental changes in the central TP. Based on a 147 m deep ice core drilled by the Sino-US Cooperation Expedition in 2005 at Mt. Geladaindong, we analyzed oxygen and major ion by using MAT253 isotope mass spectrometer and Ion Chromatograph. Multiparametric dating approach is adopted to establish an accurate chronology. Glaciochemical records were reconstructed to reveal the annual climatic and environmental changes during the period of 1477~1982 AD.

0 2019-09-15