1. Data overview: this data set is the data set of artificial observation of frozen soil depth at Qilian station from January 1, 2011 to December 31, 2011, at 08:00 every day. 2. Data content: data content is frozen depth data set of permafrost. Frozen soil observation uses the frozen depth (length) of water poured into the rubber inner tube as a record. According to the position and length of water frozen in the permafrost buried in the soil, the frozen layer and its upper and lower limit depths are measured. In centimeters (CM), rounded to the nearest whole number. Observe once every day at 0.8 o'clock. 3. Space time scope: geographic coordinates: longitude: 99 ° 53 ′ E; latitude: 38 ° 16 ′ n; altitude: 2981.0m
2020-03-11
1. Data overview: This data set is the groundwater level data of qilian station from January 1, 2013 to December 31, 2013.Well no. 1 is located at the side of the general controlled hydrologic section of the cucurbitou basin, with a depth of 12.8m and an aperture of 12cm.The second well is located to the east of the delta about 100m away from the river. The depth of the well is 14.7m and the aperture is 12cm. 2. Data content: U20-hobo water level sensor is installed in the underground well, which is mainly used to monitor the groundwater level changes in the small gourgou watershed. The data are daily scale data. 3. Space and time range: Geographical coordinates of well no. 1: longitude: longitude: 99° 53’e;Latitude: 38°16 'N;Elevation: 2974m (near the hydrological section at the outlet of the basin). Geographical coordinates of well no. 2: longitude: 99° 52’e;Latitude: 38°15 'N;Altitude: 3204.1m (east of the eastern branch of the delta).
2020-03-11
1. Data overview: This data set is the groundwater level data of qilian station from January 1, 2012 to December 31, 2012.Well no. 1 is located at the side of the general controlled hydrologic section of the cucurbitou basin, with a depth of 12.8m and an aperture of 12cm.The second well is located to the east of the delta about 100m away from the river. The depth of the well is 14.7m and the aperture is 12cm. 2. Data content: U20-hobo water level sensor is installed in the underground well, which is mainly used to monitor the groundwater level changes in the small gourgou watershed. The data are daily scale data. 3. Space and time range: Geographical coordinates of well no. 1: longitude: longitude: 99° 53’e;Latitude: 38°16 'N;Elevation: 2974m (near the hydrological section at the outlet of the basin). Geographical coordinates of well no. 2: longitude: 99° 52’e;Latitude: 38°15 'N;Altitude: 3204.1m (east of the eastern branch of the delta).
2020-03-11
In east Asia, institute of atmospheric physics, Chinese Academy of Sciences key laboratory of regional climate and environment development of regional integration environment with independent copyright system model RIEMS 2.0, on the basis of the regional climate model RIEMS 2.0 in the United States center for atmospheric research and the development of the university of binzhou mesoscale model (MM5) is a static dynamic framework, coupled with some physical processes needed for the study climate solutions.These processes include the biosphere - atmosphere transmission solutions, using FC80 closed Grell cumulus parameterization scheme, MRF planetary boundary condition and modify the CCM3 radiation, such as the heihe river basin observation and remote sensing data of important parameters in the model for second rate, USES the heihe river basin vegetation data list data of land use in 2000 and 30 SEC DEM data in heihe river basin, build up suitable for the study of heihe river basin ecological - hydrological processes of the regional climate model. Drive field: ERA-INTERIM reanalysis data Spatial scope: the grid center of the simulation area is located at (40.30n, 99.50e), the horizontal resolution is 3 km, and the number of simulated grid points in the model is 161 (meridional) X 201 (zonal). Projection: LAMBERT conformal projection, two standard latitudes of 30N and 60N. Time range: from January 1, 2011 to December 31, 2016, with an interval of 6 hours Description of file contents: monthly storage by grads without format.Except the maximum and minimum temperature as the daily scale, the other variables are all 6-hour data. MATLAB can be used to read, visible tmax_erain_xiong_heihe.m file description. Data description of heihe river basin: 1) Anemometer west wind (m/s) college usurf for short 2) Anemometer south wind(m/s), vsurf for short College 3) Anemometer temperature (deg) K tsurf College 4) maximal temperature (deg) K tmax 5) minimal temperature (deg K) abbreviated as tmin 6) college Anemom specific humidity (g/kg) college qsurf for short 7) value (mm/hr) is simply value p College 8) Accumulated evaporation (mm/hr) evap 9) sensible heat (watts/m**2/hr) for short College 10) Accumulated net infrared radiation (watts/m * * 2 / hr) netrad for short College definition file name: -erain-xiong. Month and year
2020-03-11
Location of automatic weather station: longitude and latitude 38.43n, 99.93e, altitude 3100m. The observation time is from May 9, 2013 to September 3, 2013, the parameter scale is hourly scale, and the data is recorded in 10min. The observation parameters include average wind speed (M / s), maximum wind speed (M / s), 40-60cm soil moisture, 0-20 soil moisture, 20-40 soil moisture, air pressure, par, air temperature, relative humidity, solar radiation, total precipitation, 20-40 soil temperature, 0-20 soil temperature, 40-60 soil temperature.
2020-03-10
This data is soil evapotranspiration data of subalpine grassland in tianlaochi small watershed of Qilian Mountain. Lysimeter was used to observe soil evapotranspiration and provide basic data for the development of watershed evapotranspiration model. Six repeated experiments were conducted to observe the soil evapotranspiration of subalpine grassland during the whole growing season. At 8:00 and 20:00 every day, use an electronic scale with an accuracy of 1G to weigh the inner barrel. In case of rainfall, observe whether there is leakage in the leakage barrel. If there is leakage, measure the leakage water in the leakage barrel at the same time. Observation instrument: 1) standard 20 cm diameter rain gauge. 2) Lysimeter was made by ourselves (diameter 30.5cm, barrel height 28.5). 3) Electronic balance (accuracy 1g) is used to observe the weight change of lysimeter.
2020-03-10
The content is 32 rainfall interception data of Picea crassifolia forest from May 24 to September 3, 2013. The sample plot is set in Qinghai Spruce Forest with an altitude of 2800m, the sample plot size is 30m × 30m, 90 rain cones with a diameter of 20cm are arranged in the sample plot with an interval of 3M, and 20 water tanks with two specifications (I is 200cm * 20cm, II is 400cm * 20cm) are arranged to observe the interception data in the forest. A dsj2 (Tianjin Meteorological Instrument Factory) siphon rain gauge was set up in the open land about 50m away from the sample site to observe the rainfall and rainfall characteristics outside the forest. After the end of each precipitation event and the stop of penetrating rain in the forest, measure and record the water quantity in each rain cone with a rain gauge.
2020-03-10
It is of great significance to carry out the quantitative study on the evapotranspiration of forest vegetation in Qilian Mountain, to correctly understand the hydrological function of the forest ecosystem in Qilian Mountain, to understand the water cycle process and to develop the hydrological model of the watershed, and to make a reasonable forest management plan. Forest evapotranspiration is mainly composed of soil surface evaporation, vegetation transpiration and canopy interception water evaporation. Traditional evapotranspiration research methods can be divided into two categories: actual measurement and estimation. The actual measurement methods include hydrology method, micro meteorology method and plant physiology method; the estimation method is to calculate Evapotranspiration by model, mainly including analysis model and empirical model. However, none of these methods can effectively distinguish forest transpiration from evaporation. The trunk liquid flow method can effectively calculate the transpiration of forest land by measuring the transpiration water consumption of trees. The trunk liquid flow method can effectively calculate the transpiration of forest land by measuring the transpiration water consumption of trees. The transpiration water consumption of Picea crassifolia forest was measured by thermal pulse technique, and the scale was extended to the stand scale to indicate the transpiration water consumption of Picea crassifolia forest.
2020-03-10
Forest survey is the application of measurement, tree measurement, remote sensing and other professional techniques and methods, survey, sampling and computer technology and other means to understand the quantity, quality, distribution and growth of forests within a specific range, so as to provide basic data for the formulation of forestry policies and scientific management of forests, as well as for scientific research. In the drainage ditch watershed of Qilian Mountain, there are three plots of Picea crassifolia forest in Qinghai Province, each of which is 2800m, 2900m and 3000m above sea level. Plot 01 is 20 * 30m and plot 02-09 is 20 * 35m. The traditional methods were used to investigate the tree height, DBH, base diameter and crown diameter of Picea crassifolia, providing basic data for the study of ecological hydrology of Picea crassifolia forest in the upper reaches of Heihe River.
2020-03-10
Canopy conductance (mm s-1) is a sensitive index of forest transpiration response to environmental factors, and is a key parameter in water and carbon exchange model. The data is obtained by expanding the water consumption scale measured by stem sap flow technology to the stand scale to obtain the water consumption of the stand, and then using penman equation to calculate. This data mainly provides basic data for some eco hydrological models.
2020-03-10
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