Allocation under variable flow
Long flow records and climate-adjusted projections test whether fixed allocation volumes in a basin agreement can be met in dry years, and how proportional rules would behave.
GRF · 气候与自然治理
Hydrology describes how water moves through catchments, aquifers and rivers. In basin and water governance it provides the flow, storage and variability evidence on which allocation rules, treaty shares and drought procedures depend, and it shows how upstream decisions travel downstream.
Hydrology studies the movement, distribution and quality of water across the land surface, subsurface and atmosphere. It underpins the assessment of floods, droughts and water supply, which affect food, energy, health and infrastructure together. In climate and hazards, biodiversity and nature, water and food and agriculture, hydrological estimates set design standards for dams, levees and drainage and inform water allocation between competing users. They link climate hazards to downstream effects on power generation, crops and public health. The canonical description is on STEM Commons.
Long flow records and climate-adjusted projections test whether fixed allocation volumes in a basin agreement can be met in dry years, and how proportional rules would behave.
Hydrological models estimate how a proposed dam or abstraction changes flow timing and quantity downstream, as evidence for notification and joint assessment.
Gauging networks and data exchange protocols are designed so that riparian parties share the same flow record.
Rain, flood water, root-zone soil moisture and population density over the Andes, from NASA GIBS. Each layer carries its own date.
交互式地图需要JavaScript;图层列表和来源见下文。
图层 4
本页面的当前水情
键盘操作,地图获得焦点时
按住 Ctrl 或 ⌘ 并滚动以缩放
最新可用
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap贡献者 (ODbL) · Natural Earth
正在加载最新的NASA影像。
拖动以移动。按住 Ctrl 或 ⌘ 并滚动、双指缩放或使用按钮缩放;悬停可查看指针下的数值;重置可返回该区域。
安第斯地区当前水情。NASA 发布的卫星和模型产品,各带自己的日期。它们是指标,而非对任何地点的评估。
图层与日期
Datasets and records used by hydrology and water science on this platform, with the role each plays and the label its values carry. Sources are listed in 来源登记册.
| 数据 | 角色 | 标签 |
|---|---|---|
| GRDC river discharge records | Observed flows | 观测 |
| GRACE terrestrial water storage | Groundwater and storage change | 观测 |
| FAO AQUASTAT | Withdrawals by sector | 估算 |
| Basin model outputs | Scenario flows | 模型估算 |
三类工具在你设定的覆盖率和遵从率下与基线并列比较,每类都有自己的滞后和采用速度;效应大小是教学用数值,应以证据替换。情景:关于未来的具名假设,不是预测。本页地图显示安第斯山脉;模型本身并不绑定某个地点。
控制措施
读数
| 年份 | 基线 | 防御设施与蓄水 | 土地利用规则 | 预警与备灾 |
|---|---|---|---|---|
| 0 | 100.0 | 99.7 | 98.9 | 98.7 |
| 1 | 102.0 | 101.5 | 100.4 | 98.7 |
| 2 | 104.0 | 103.1 | 101.8 | 97.5 |
| 3 | 106.1 | 104.4 | 102.8 | 96.8 |
| 4 | 108.2 | 105.2 | 103.6 | 97.5 |
| 5 | 110.4 | 105.2 | 104.1 | 99.0 |
| 6 | 112.6 | 104.4 | 104.3 | 100.9 |
| 7 | 114.9 | 102.7 | 104.3 | 102.8 |
| 8 | 117.2 | 100.6 | 104.3 | 104.9 |
| 9 | 119.5 | 98.9 | 104.4 | 107.0 |
| 10 | 121.9 | 97.9 | 104.7 | 109.1 |
| 11 | 124.3 | 97.9 | 105.3 | 111.3 |
| 12 | 126.8 | 98.6 | 106.3 | 113.5 |
| 13 | 129.4 | 99.8 | 107.6 | 115.8 |
| 14 | 131.9 | 101.3 | 109.1 | 118.1 |
| 15 | 134.6 | 103.1 | 110.8 | 120.5 |
| 16 | 137.3 | 105.0 | 112.7 | 122.9 |
| 17 | 140.0 | 107.0 | 114.8 | 125.3 |
| 18 | 142.8 | 109.1 | 116.9 | 127.8 |
| 19 | 145.7 | 111.3 | 119.1 | 130.4 |
| 20 | 148.6 | 113.5 | 121.4 | 133.0 |
The model runs on the teaching values set by the controls. To calibrate it for a place, read it against these admitted layers and series, which this page’s map can draw:
贯穿六大支柱,由 Nexus Consortium 牵头
Models are calibrated on one period of observed flows and tested on an independent period or neighbouring catchment. Skill scores and comparison with surveyed flood extents are used to judge performance.
| 核查 | 如何开展 |
|---|---|
| Record length and gaps | Flow statistics state record length, gaps and how they were filled |
| Model calibration | Basin models are calibrated and validated on separate periods |
| Non-stationarity | Trends are tested before historical statistics are used for future allocation |
Assumptions of stationarity weaken as climate and land use change. Ungauged basins, karst aquifers and rapid urbanisation are poorly represented by parameters fitted elsewhere.
The chain from an impact model to an evaluated early action, each step with the pillar that runs it, and the decisions that stay with the authorities. Teaching model with stated illustrative values, not a prediction. The map on this page shows The Andes; the model itself is not tied to a place.
贯穿六大支柱,由 Nexus Consortium 牵头
Assembled from the Nexus Standards area profile 气候适应与转型风险: the hazards it names, the 系统 and communities that carry the loss, the controls and institutions that dampen it and the data that observe it. Pick an initiating event and step through the cascade to see where mandates meet and which decisions fall to whom. The Map view places the run on an example geography with open data. Every weight is a stated assumption. An exercise for dialogue, not a forecast, an assessment or a position. To model a place of your own choosing, open the full System Builder.
灾害
控制措施
NS-0 章程与原则NS-3 风险记录 UNI(语法、旧编码对照、分配机构)NS-9 情境 UNI(部署、实例、计划实例)NS-10 政策和条款(机器可读的义务:定义、约束、评估和执行)NS-11 验证与监测(证据、证明、零信任符合性观测)NS-14 符合性及与外部标准的对照NRS-X1 气候变化风险与适应NRS-T16 人工智能代理与自主决策系统风险NRS-H65 危害类别:超越行星边界(NHS-1 planet.boundary)NRS-I7 智能应用:有依据的检索、推理与决策支持NRS-K20 领域包规范:气候适应(DOMAIN-020)NRS-K21 领域包配置文件:气候减缓碳(DOMAIN-021)观测
示例地理范围
Water Nexus stewards hydrology and water science for the Consortium and reviews how it is applied across platforms.
The sectors a policy on hydrology and water science for climate and nature governance has to coordinate: a choice in one ministry lands in the others.
签名
Water and Biodiversity
Water gives biodiversity environmental flows (0.6): the strongest relations between the sectors this subject joins.
W · E · I · F · H · B
政策制定者、外交官或发展机构所使用的文书、授权、行为方和问责安排,并注明设定它们的协定。结构遵循所列框架。所绘制的任何状态或进展均为说明性,并非记录。
The agreements that set mandates and commitments on hydrology and water science for climate and nature governance, from adoption to their current horizon.
报告 is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
切勿发送个人数据、敏感基础设施细节或您无权分享的任何内容。贡献在使用前会经过审查;发送贡献不赋予署名权或编辑权,赞助也绝不能换取研究结论。
本网站上的地图、数据和图表仅作为背景和一般信息展示。它们不是建议、预测或预警;信息的局限见免责声明和数据说明。
This site uses only strictly necessary cookies to work and to remember your privacy choices. Nothing loads from other companies, and we never sell or share your personal information.
This site uses only strictly necessary cookies to work and to remember your privacy choices. Nothing loads from other companies, and we never sell or share your personal information. We run no advertising. You can review your choices at any time through Privacy choices at the foot of every page.