相关实验视频
Updated: Jun 28, 2025

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.0K
到2050年,推进与SSP结合的航运场景
Diogo Kramel1, Sebastian M Franz2, Jan Klenner3
1Industrial Ecology Programme (IndEcol), Norwegian University of Science and Technology (NTNU), Trondheim, Norway. diogo.kramel@ntnu.no.
Scientific reports
|April 18, 2024
概括
本研究提出了一个新的框架,用于预测航运运输.
科学领域:
- 气候科学 气候科学
- 能源系统分析 能源系统分析
- 海上运输研究 海上运输研究
背景情况:
- 综合评估模型 (IAM) 和地球系统模型 (ESM) 在准确地表示航运部门的脱碳途径和气候影响方面面临挑战.
- 开发船舶能源需求的全面和空间显式场景对于气候和能源系统建模至关重要.
研究的目的:
- 制定与共享社会经济路径 (SSPs) 框架相一致的航运部门的空间显式能源需求预测.
- 为将详细的航运库存纳入气候和能源模型提供一个透明的框架.
- 加强对海运在全球脱碳努力中的作用的理解.
主要方法:
- 利用共享社会经济路径 (SSP) 框架,使航运能源需求预测与全球社会经济趋势保持一致.
- 来自IAM的全球化石燃料需求的综合预测,以告知航运能源需求.
- 开发了航运部门的空间显式能源需求预测.
主要成果:
- 根据不同的SSP情景,到2050年,航运能源需求预计将在14至20个exajoule (EJ) 之间.
- 与2018年的水平相比,这代表了潜在的3% (SSP1-1.9) 到44% (SSP3-7.0) 的增长.
- 开发的预测可以与燃料组合数据相结合,以创建用于气候建模的排放清单.
结论:
- 提出的框架有助于将航运部门数据整合到IAM和ESM中.
- 加强航运能源需求和排放的空间和时间解决将有助于评估减缓战略.
- 增加航运库存开发的透明度支持科学界的协作和对脱碳化挑战的理解.
相关概念视频
Sustainable Development
13.3K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
13.3K
Design Example: Alignment of a Road Line Using GIS
48
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
48
Distributed Loads
533
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
533
Distributed Loads: Problem Solving
645
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
645
Design Example: Calculating Safe Diameter for Wind-Exposed Disc
92
Assessing safety in wind-exposed installations is crucial to preventing potential failures. This example explores the calculation and design adjustments needed to mount a circular disc on a building facade, where wind forces are a primary concern. A 4-meter diameter disc was initially designed as an aesthetic feature facing winds at a velocity of 25 meters per second, with an air density of 1.25 kilograms per cubic meter. Given these conditions, the drag force on the disc was determined using...
92
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
46
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
46

