Hydrochemical characteristics of Naqu watershed in the upper reaches of Nujiang River (2020-2021)

In order to explore the inorganic hydrochemical characteristics of Naqu basin, river water and groundwater were collected in Naqu basin in September 2020 and September 2021. Collect river water and groundwater with 550ml plastic bottles on site. The main anions and anions (ca2+, na+, mg2+, k+, so42- and cl-) are measured with an ion chromatograph (metrohm ecoic, Switzerland), with a measurement accuracy of 1 μ G/l. Bicarbonate (hco3-) is titrated with acid-base indicator and determined with 50ml acid burette. The purpose is to reveal the inorganic hydrochemical characteristics of water bodies in Naqu basin and provide data support for the analysis of groundwater recharge sources in Naqu basin.

0 2022-06-15

Annual glacier mass balance data on Tibetan Plateau (2020-2021)

Glacial mass balance is one of the most important glaciological parameters to characterize the accumulation and ablation of glaciers. Glacier mass balance is the link between climate and glacier change, and it is the direct reflection of glacier to the regional climate. Climate change leads to the corresponding changes in the material budget of glaciers, which in turn can lead to changes in the movement characteristics and thermal conditions of glaciers, and then lead to changes in the location, area and ice storage of glaciers. The monitoring method is to set a fixed mark flower pole on the glacier surface and regularly monitor the distance between the glacier surface and the top of the flower pole to calculate the amount of ice and snow melting; In the accumulation area, the snow pits or boreholes are excavated regularly to measure the snow density, analyze the characteristics of snow granular snow additional ice layer, and calculate the snow accumulation; Then, the single point monitoring results are drawn on the large-scale glacier topographic map, and the instantaneous, seasonal (such as winter and summer) and annual mass balance components of the whole glacier are calculated according to the net equilibrium contour method or contour zoning method. The data set is the annual mass balance data of different representative glaciers in the Qinghai Tibet Plateau and Tianshan Mountains, in millimeter water equivalent.

0 2022-05-06

Information on tissue samples of animal specimens from the second comprehensive scientific survey of the Qinghai Tibet Plateau (2021)

Information of animal samples, tissue samples, DNA bar code samples and other physical samples collected in the second year (from the end of 2020 to 2021) of the fifth topic of the second comprehensive scientific investigation and research task of the Qinghai Tibet Plateau - "conservation and sustainable utilization of animal diversity on the plateau" (2019QZKK0501). All data shall be sorted according to the subject and sub subject, and the folder shall be named according to the subject number and sub subject number. Each sample table contains one or more sample information tables. Each information table contains sub topic number, species, collection place, collection time, collector, sample type, storage method and other information.

0 2022-04-25

Photo data set of insects in and around Motuo, Tibet (2020-2021)

In order to systematically investigate insect species and analyze the distribution pattern of insect diversity in and around Motuo, Tibet, this sub project (2019qzkk05010101) collects representative insect groups such as Coleoptera, Hymenoptera, Lepidoptera, Diptera and Hemiptera by using trap method, net scanning method, lamp trap method and Malay's net method in Motuo and surrounding areas, Tibet, and records the information of insect specimens, Take pictures and videos of insects. This data set contains insect habitat photos and working photos taken in Motuo County, Bomi County, Chayu County, Nyingchi city and Milin County, Tibet from 2020 to 2021. Solid specimens are kept in the National Animal Museum.

0 2022-04-12

Tianmogou radar alarm data (2020-2021)

During the development of debris flow monitoring microwave radar prototype, a series of demonstration applications were carried out in tianmogou, Bomi County, Nyingchi Prefecture, Tibet Autonomous Region. The test alarm data and application alarm data information in the demonstration application were reported and recorded through the multi-mode communication unit. This record gives the report records during the test and application. The data is the original log records exported from the background database of the control center, which are listed in Excel table according to the display of the control center, so as to improve its readability. Because the debris flow microwave radar is a result oriented monitoring, that is, its monitoring results directly give whether there is debris flow, rather than the relevant conditions of debris flow. Therefore, this data is mainly used to determine the target recognition ability in the research and development process of debris flow monitoring microwave radar. The data can be used as a reference for the development of debris flow microwave radar.

0 2022-03-07

Characteristic parameters and data of field investigation on the impact of disaster chain on major line engineering structures

On the basis of field scientific research, this parameter set integrates the parameters of debris flow disaster chain and landslide disaster chain observed along important roads in Himalayan and Hengduan Mountains. The regional scope covers Nyingchi, Shannan, Bomi, Basu, Shigatse, Ali and other regions of the Tibet Autonomous Region, as well as the East Asia rift valley of the China India channel. The source and mode of data production are processed according to the original data obtained from field scientific investigation. This parameter set is mainly based on the field investigation to determine the location and type of disaster and disaster chain, the damage of major highway projects and other information, and then sorted into tables and shp files. It is hoped that this data can provide help for disaster prevention and reduction of road projects in the Qinghai Tibet Plateau.

0 2022-02-26