Method and device for evaluating influence of climate change on regional landslide occurrence time and space
A climate change, spatiotemporal technology, applied in instrumentation, data processing applications, resources, etc., to solve problems such as unclear activity and frequency
Inactive Publication Date: 2021-10-01
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology
[0002] The assessment of the impact of climate change on landslides is a very complex and challenging problem
At present, the conditions under which global warming and related climate change will affect the occurrence of landslides are clear, but the impact of climate change on the occurrence of landslides still has great uncertainty in different spatial and temporal scales. The type, extent, magnitude and direction, as well as the location, activity and frequency of landslides under future climate change scenarios are still unclear
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[0019] Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described here are only for illustration, not for limiting the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In other instances, well-known circuits, software or methods have not been described in detail in order not to obscure the present invention.
[0020] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present invention. In at least one embodiment. Thus, appearances of the phrases "in one emb...
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The invention discloses a method and a device for evaluating influence of climate change on regional landslide occurrence time and space, and belongs to the field of landslide evaluation and prediction. The method comprises the following steps: acquiring rainfall data about a specific area; dividing the rainfall data into a plurality of rainfall events, wherein each rainfall event at least comprises duration time and accumulated rainfall capacity; performing time and space matching on the rainfall event and each landslide disaster event in a historical landslide disaster database to obtain duration time and accumulated rainfall for inducing each landslide disaster event; establishing a rainfall threshold curve according to the duration of inducing each landslide disaster event and the accumulated rainfall; and according to the rainfall threshold curve, evaluating the space-time influence of climate change on the landslide in the specific area. According to the method, the influence of the duration of the rainfall event and the accumulated rainfall on the landslide is effectively evaluated, and then the area where the landslide possibly occurs is sensed in advance in the climate change process.
Description
technical field [0001] The invention relates to the field of influence of climate change on regional landslides, in particular to a method and device for evaluating the temporal and spatial influence of climate change on regional landslides. Background technique [0002] The assessment of the impact of climate change on landslides is a very complex and challenging problem. At present, the conditions under which global warming and related climate change will affect the occurrence of landslides are clear, but the impact of climate change on the occurrence of landslides still has great uncertainty in different spatial and temporal scales. The type, extent, magnitude and direction, as well as the location, activity and frequency of landslides under future climate change scenarios are still unclear. For this reason, it is necessary to propose a technical method for assessing the spatiotemporal impact of climate change on landslide occurrence at the regional scale, which integrat...
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IPC IPC(8): G06Q10/06
CPCG06Q10/0639
Inventor 林齐根王国杰王艳君苏布达翟建青黄金龙姜彤
Owner NANJING UNIV OF INFORMATION SCI & TECH