Method for detecting glacial ablation based on tracer technique

Abstract

The invention discloses a method for detecting glacial ablation based on the tracer technique, and the method comprises the following steps: 1, adding different tracer agents with the equal concentration to a plurality of parts of water, uniformly mixing the tracer agents and water, recording the size and weight of each glacier model at the same time, sequentially freezing the plurality of parts of water with the tracer agents from the inside to the outside in a layered manner, and building a plurality of glacier models; 2, adjusting the environment factors of the surroundings of the glacier models, collecting the thawed water samples of the glacier models under different environment factors, and measuring the concentrations of all tracer agents in the water samples; 3, obtaining the weight, thawing speed and thawing position of the water samples of the glacier models at different layers under different conditions according to the contents of the tracer agents, and deducing the physical process of actual glacial ablation according to the thawing speed, the thawing weight and the thawing position. According to the invention, the method achieves the purpose of simulating the glacial ablation process through the glacier models and further deducing the ablation speed of an actual glacier, so as to carry out the early warning and analysis of the sea level rise and glacier natural hazards.

Description

technical field [0001] The invention relates to a method for detecting glacier ablation based on tracing technology. Background technique [0002] According to the latest statistics from "World Glacier Inventory" and "China Glacier Catalog", the global glacier area is 15,865,756km2, of which 96.6% are distributed in Antarctica and Greenland, followed by North America (1.7%) and Asia (1.2%) , these glaciers are closely related to human activities, and their advance and retreat changes are more closely related to the humans living around the mountains. [0003] As an indicator of climate change, glaciers are shrinking at an accelerated rate under the trend of climate warming. The accelerated melting of glaciers has an important impact on sea level rise, regional water cycle and water availability. At present, the methods for studying changes in glacier storage (volume) mainly include traditional measurement methods, statistical formula methods, glacier topography and remote ...

AI Technical Summary

Problems solved by technology

However, these methods are all based on the study of changes in glacier storage (volume), without exploring the mechanism of glacier melting from the physical process; moreover, most of the research methods are time-consuming, costly, and labor-intensive, and are also vulnerable to field conditions. limit