Filters: Tags: China (X) > partyWithName: U.S. Geological Survey (X)
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Geospatial data were developed to characterize pre-fire biomass, burn severity, and biomass consumed for the Black Dragon Fire that burned in northern China in 1987. Pre-fire aboveground tree biomass (Mh/ha) raster data were derived by relating plot-level forest inventory data with pre-fire Landsat imagery from 1986 and 1987. Biomass data were generated for individual species: Dahurian larch (Larix gmelinii Rupr. Kuzen), white birch (Betula platyphylla Suk), aspen (Populus davidiana Dode and Populus suaveolens Fischer), and Mongolian Scots pine (Pinus sylvestris var. mongolica Litvinov). A raster layer of total aboveground tree biomass was also generated. Burned area was manually delineated using the normalized...
At recent technical conferences, many coal geoscientists in academia and government institutions as well as in industry organizations have expressed concern about the dwindling number of students and young staff members interested in careers in coal geoscience. To better understand what is driving these trends and to identify potential ways that the community can increase interest and participation in coal geoscience, two different surveys were sent to 94 coal geoscientists who were current or past members of The Society of Organic Petrology (TSOP) in February 2020. As the trends and perceptions in industry and government organizations may be different than in universities, one distinct survey was sent to members...
China. Karst topography, viewed from a boat on the Li River south of Guilin. October 28, 1983.
View of karst topography taken from boat on trip down the Li River south of Guilin. Roof on boat visible at left. China. October 28. 1983.
View of karst topography taken from boat on trip down the Li River south of Guilin. Fog partially obscures karst structures. China, October 28, 1983. (Similar to Photo No. mwh020cp)
View of karst topography, at left, taken from boat on trip down the Li River south of Guilin. River in foreground; houses and terraced slope on far shore. A foggy day. China. October 28, 1983.
Dramatic near view of karst topography taken from boat on trip down the Li River south of Guilin. A foggy day, China. October 28, 1983.
View of karst topography taken from boat on trip down the Li River south of Guilin. Fog partially obscures karst structures. China, October 28, 1983. (Similar to Photo No. mwh019cp)
View of karst topography taken from boat on trip down the Li River south of Guilin. Passengers and another boat visible at bottom edge. A foggy day. China. October 28, 1983.
The U.S. Geological Survey (USGS) has compiled a geodatabase containing mineral-related geospatial data for the People's Republic of China. The data can be used in analyses of the extractive fuel and nonfuel mineral industries and related economic and physical infrastructure integral for the successful operation of the mineral industries within the area of study as well as the movement of mineral products across domestic and global markets. This geodatabase reflects the USGS ongoing commitment to its mission of understanding the nature and distribution of global mineral commodity supply chains by updating and publishing the georeferenced locations of mineral commodity production and processing facilities, mineral...
View of karst topography at river edge, taken from boat on trip down the Li River south of Guilin. Houses on bank in foreground; river also in foreground; edge of boat deck at left. A foggy day. China. October 28, 1983.
This data release contains the boundaries of conventional assessment units for the assessment of undiscovered oil and gas resources in China. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing,...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Assessment Unit,
Cenozoic Reservoirs,
China,
Conventional Assessment Unit,
Energy Resources,
This dataset includes stable carbon and nitrogen isotope values for the inner tail retrices of three subspecies of barn swallow (Hirundo rustica rustica, H. r. tytleri, and H. r. gutturalis). Sampling was conducted in Russia (summer 2013), China (summer 2014), Mongolia (summer 2014), Japan (summer 2014), and western China (summer 2015) using mist nets. Stable carbon and nitrogen isotope data are useful proxies for diet and at broad spatial scales have the potential to constrain geographic distributions at the sub-population level. These data were used in tandem with molecular genetics to explore the extent to which a migratory divide explains the strength of reproductive isolation. There are two files in this dataset:...
View of karst topography taken from boat on trip down the Li River south of Guilin. People in view in lower right corner; foggy day. China. October 28, 1983.
View of karst topography taken from boat on trip down the Li River south of Guilin. Houses on bank in foreground; river also in foreground. A foggy day. China, October 28, 1983.
View of passing river boat taken from boat on trip down the Li River south of Guilin. China. October 28, 1983.
Distant view of karst topography with natural arch on one side taken from boat on trip down the Li River south of Guilin. River and banks with boats in foreground. China. October 28, 1983.
Emergence of avian influenza viruses with high lethality to humans, such as the currently circulating highly pathogenic A(H5N1) and A(H7N9) cause serious concern for the global economic and public health sectors. To improve our understanding of the spatial and temporal trends in transmission risk we developed a model that predicts hotspots of novel virus emergence between domestic and wild birds and incorporates H5N1 risk factors. Models were produced at 30 km spatial resolution across two temporal seasons. Files are named using a TransmisisonDirection_Season_DataType format such that Transmission direction can end in a (poultry to waterfowl) or b (waterfowl to poultry), Season can be breeding (br) or wintering...
Scientists at the Institute of Desert Research, Lanzhou, examine Landsat images as a potential tool for monitoring arid-land reclamation techniques. People's Republic of China. Circa 1980. (Photo by Alta Walker) Published in U.S. Geological Survey Yearbook as Figure B, p. 97. 1980.
Categories: Image;
Tags: China,
Photographers,
Satellite imagery,
Walker, A. Collection,
photo print
Wild waterfowl (family Anatidae) are reported as secondary transmitters of HPAIV and primary reservoirs for low-pathogenic avian influenza viruses, yet spatial inputs for disease risk modeling for this group have been lacking. Using geographic information software and Monte Carlo simulations, we developed geospatial indices of waterfowl abundance at 1 km resolutions for the breeding and wintering seasons for China, the epicenter of H5N1. Two types of spatial layers were developed: cumulative waterfowl abundance (WAB), a measure of predicted abundance by species, and cumulative abundance weighted by H5N1 prevalence (WPR), whereby abundance for each species was adjusted based on species specific prevalence values....
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