CN108572092B

CN108572092B - Precipitation collection device for extremely high altitude glacier ablation area

Info

Publication number: CN108572092B
Application number: CN201710132144.6A
Authority: CN
Inventors: 武小波; 李�真; 王宁练; 李全莲
Original assignee: Northwest Institute of Eco Environment and Resources of CAS
Current assignee: Northwest Institute of Eco Environment and Resources of CAS
Priority date: 2017-03-07
Filing date: 2017-03-07
Publication date: 2023-08-01
Anticipated expiration: 2037-03-07
Also published as: CN108572092A

Abstract

The rainfall collecting device comprises a fixed rod, a wedge strip, fixing frames, a plastic cylinder, an annular cover, a polyethylene plastic bag, a sample protection cylinder and a sampling bottle, wherein the lower end of the fixed rod is fixed, and the upper end of the fixed rod is provided with 2 fixing frames; the fixing frame is an integral body formed by a circular ring and an opening circular clamp; the opening of the circular clamp is provided with a fastening clamp; the sampling tube is fixed by an opening circular clamp of the fixing frame. The upper end of the sampling cylinder is provided with an annular cover, and the lower end of the sampling cylinder is connected with the adapter through a buckle I; the adapter is connected with the sample protection cylinder through a buckle II; the sampling bottle is placed in the sample protection cylinder; the sample protection cylinder is connected with the adapter through a buckle II. The invention relates to a simple device for sampling precipitation in a glacier ablation area, which has the advantages of simple structure, convenience in installation and low cost. The invention can be reduced along with the reduction of the ice surface in the sampling process, and the height difference of the capturing port of the sample is consistent with that of the ice surface in the sampling process, so that the capturing rate of precipitation is improved, and more accurate precipitation data are obtained.

Description

Precipitation collection device for extremely high altitude glacier ablation area

Technical Field

The invention relates to the field of glaciers, in particular to a precipitation collecting device for an extremely high altitude glacier ablation area.

Background

Precipitation and precipitation chemistry research in extremely high altitude glacier areas is an important link of global water circulation research, and the research is directly related to the allocation scheme of watershed water resources, the reasonable utilization approach of the water resources and the formulation of sustainable development planning. In addition, the expansion of a large number of ice lakes and the formation of new ice lakes, which occur with the subsidence of the glaciers on the Qinghai-Tibet plateau, potentially overwhelm the disaster, endangering engineering and economic development in the plateau and downstream areas. However, snow on the glacier surface is influenced by the process of precipitation, evaporation and sublimation, and the collected snow sample is greatly deviated in researching the spatial change of isotopes in the glacier area and the spatial change of precipitation. The temperature of the glacier area with extremely high altitude is low, solid precipitation is the main part, and the application of the conventional tipping bucket type rain gauge in the glacier area is greatly limited. In addition, the elevation of the glacier surface has a remarkable seasonal change process, if the rain gauge is fixed in the glacier ablation area, the elevation of the rain gauge capturing port and the ice surface can be increased due to the fact that the ice surface is reduced due to ablation, and the capture rate of the rain gauge on precipitation is affected. In view of the above, a device which can move in the vertical direction and the precipitation capturing port is always vertical is designed and is used for collecting precipitation in a glacier area with extremely high altitude and measuring precipitation amount.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a precipitation collection device for an extremely high altitude glacier ablation zone.

The technical scheme adopted for solving the technical problems is as follows:

the rainfall collecting device comprises a fixed rod, a wedge strip, fixing frames, a plastic cylinder, an annular cover, a polyethylene plastic bag, a sample protection cylinder and a sampling bottle, wherein the lower end of the fixed rod is fixed, and the upper end of the fixed rod is provided with 2 fixing frames; the fixing frame is an integral body formed by a circular ring and an opening circular clamp; the opening of the circular clamp is provided with a fastening clamp; the sampling tube is fixed by an opening circular clamp of the fixing frame.

The upper end of the sampling cylinder is provided with an annular cover, and the lower end of the sampling cylinder is connected with the adapter through a buckle I; the adapter is connected with the sample protection cylinder through a buckle II; the sampling bottle is placed in the sample protection cylinder; the sample protection cylinder is connected with the adapter through a buckle II.

The adapter is in an inverted cone shape, and the cone nozzle is provided with an anti-evaporator.

And a polyethylene plastic bag is also arranged in the sampling cylinder.

A wedge strip is arranged between the fixing rod and the fixing frame, and the wedge strip is used for preventing the fixing frame from swinging on the fixing rod.

The evaporator is composed of a shaft, a semicircular plastic sheet I, a semicircular plastic sheet II and a spring piece, wherein the semicircular plastic sheet I and the semicircular plastic sheet II are connected to the shaft through a buckle, the spring piece is installed in the middle of the shaft, and two ends of the spring piece are used for supporting the semicircular plastic sheet I and the semicircular plastic sheet II.

The invention has the advantages and beneficial effects that:

the invention relates to a simple device for sampling precipitation in a glacier ablation area, which has the advantages of simple structure, convenience in installation and low cost. The invention can be reduced along with the reduction of the ice surface in the sampling process, and the height difference of the capturing port of the sample is consistent with that of the ice surface in the sampling process, so that the capturing rate of precipitation is improved, and more accurate precipitation data are obtained.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of a fixing frame in the present invention.

Fig. 3 is a schematic view of an anti-evaporator according to the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings

As shown in fig. 1 and 2, the precipitation collection device for the extremely high altitude glacier ablation zone comprises a fixed rod 1, a wedge strip 2, a fixed frame 3, a plastic barrel 4, an annular cover 5, a polyethylene plastic bag 6, a sample protection barrel 11 and a sampling bottle 12, wherein the lower end of the fixed rod 1 is fixed, and the upper end of the fixed rod is provided with 2 fixed frames 3; the fixing frame 3 is a whole formed by a circular ring 31 and an opening circular clamp 33; the opening of the opening circular clamp 33 is provided with a fastening clamp 32; the sampling tube 4 is fixed by an opening circular clamp 33 of the fixing frame 3; the upper end of the sampling tube 4 is provided with an annular cover 5, and the lower end of the sampling tube is connected with an adapter 8 through a buckle I7; the adapter 8 is connected with the sample protection cylinder 11 through a buckle II 10; the sampling bottle 12 is placed in the sample protection barrel 11; the sample protection cylinder 11 is connected with the adapter 8 through a buckle II 10.

The adapter 8 is in an inverted cone shape, and the cone nozzle of the adapter is provided with an anti-evaporator 9; a polyethylene plastic bag 6 is also arranged in the sampling tube 4; wedge strips 2 are arranged between the fixing rods 1 and the fixing frames 3.

As shown in fig. 3, the semicircular plastic pieces i 92 and ii 93 are connected to the shaft 91 by a snap, and a spring piece 94 is installed in the middle of the shaft 91, and both ends of the spring piece 94 support the semicircular plastic pieces i 92 and ii 93.

Examples

Firstly, a steam drill is used for punching holes on ice surface to fix the lower end 2 meters of the fixed rod 1 in glaciers, then 2 fixing frames 3 are sleeved on the fixed rod 1, and a wedge strip 2 is inserted between the fixing frames 3 and the fixed rod 1 to prevent the fixing frames 3 from shaking.

Then the rubber ring is sleeved on the outer wall of the sampling tube 4, the circular clamps 33 are sleeved on the rubber ring respectively, the tightness degree of the circular clamps 33 to the sampling tube 4 is adjusted through the fastening buckle 32, then the sampling bag 6 is placed in the sampling tube 4, the adapter 8 is fixed at the lower end of the sampling tube 4 through the buckle I7, the sampling bottle 12 is fixed in the sample protection tube 11 through the heat insulation material, and then the sample protection tube 11 is sleeved at the lower end of the adapter 8 and is fixed through the buckle II 10.

Finally, the sample protection cartridge 11 is placed on the ice surface.

The sampling device is lowered along with the lowering of the ice surface, and the final purpose is to enable the collecting port of the sampling cylinder 4 to be consistent with the height difference of the ice surface, improve the capture rate of precipitation and acquire more accurate precipitation data.

After the experiment, the sampling bag 6 needs to be replaced after the sampling bottle 12 is taken out, so that pollution is avoided.

Claims

1. The utility model provides a high altitude glacier melts district precipitation collection device, includes dead lever (1), wedge strip (2), mount (3), plastics sampling tube (4), cyclic annular lid (5), polyethylene plastic bag (6), sample protection section of thick bamboo (11), sampling bottle (12), its characterized in that:

the lower end of the fixed rod (1) is fixed, and the upper end is provided with 2 fixing frames (3); the fixing frame (3) is an integral body formed by a circular ring (31) and an opening circular clamp (33);

a fastening clip (32) is arranged at the opening of the opening circular clip (33);

the sampling cylinder (4) is fixed through an opening circular clamp (33) of the fixing frame (3); the upper end of the sampling cylinder (4) is provided with an annular cover (5), and the lower end of the sampling cylinder is connected with an adapter (8) through a buckle I (7); the adapter (8) is connected with the sample protection cylinder (11) through a buckle II (10); the sampling bottle (12) is arranged in the sample protection cylinder (11); the sample protection cylinder (11) is connected with the adapter (8) through the buckle II (10), the adapter (8) is in an inverted cone shape, and the cone nozzle of the sample protection cylinder is provided with an anti-evaporator (9);

a polyethylene plastic bag (6) is also arranged in the sampling cylinder (4);

a wedge strip (2) is arranged between the fixed rod (1) and the fixed frame (3);

the evaporator (9) is composed of a shaft (91), a semicircular plastic sheet I (92), a semicircular plastic sheet II (93) and a spring piece (94), wherein the semicircular plastic sheet I (92) and the semicircular plastic sheet II (93) are connected with the shaft (91); a spring piece (94) is arranged in the middle of the shaft (91), and two ends of the spring piece (94) support a semicircular plastic piece I (92) and a semicircular plastic piece II (93).