Immersive Model for Lake Mead Based on the Principle of Divide Reservoir Inflow

The purpose of this immersive online collaborative model is to give collaborators the opportunity to immerse in and personify water user roles for a Lake Mead model based on the principle of division of reservoir inflow. The model works on the principles of A) Divide reservoir inflow, B) Subtract evaporation, and C) Users consume and conserve within their available water, others choices, and real-time discussion of choices. There are six users in the model - Reclamation, California, Arizona, Nevada, Mexico, and Tribal Nations of the Lower Colorado River Basin. We see uses of the tool for two purposes: 1) As researchers we want to learn: Why basin partners choose assumptions and how extreme; Why and how basin partners manage their risk of uncertain future water supply; Which new insights they take from a model session. 2) Provoke thought and discussion to: i) Stabilize and recover reservoir storage under conditions of low storage and low inflow, and ii) Give users more autonomy to manage their conflicting vulnerabilities to water shortages. The README file below provides more background on the model, the 3 key ideas, and instructions to download the model file, move into Google Drive, invite colleagues/co-workers/friends/family, and guide an immersive model session. Contents of this resource: 1) ImmersiveModelLakeMeadDivideInflow-LetsStart.pdf - Visualization of the 3 key ideas for the model and directions to start a model session. 2) ImmersiveModelLakeMeadDivideInflow-LetsStart.pptx - Powerpoint version of the LetsStart pdf file. 3) LakeMeadWaterBankDivideInflow.xlsx - Model file in Excel. Download, move into Google Drive, invite people to join, and follow the remaining instructions on the ReadMe-Directions worksheet. 4) LakeMeadWaterConservationProgramAnalysis.docx - Draft manuscript for the immersive model in Word format. This manuscript also shares 10 successes of the current Lake Mead water conservation (Intentionally Created Surplus) program. 5) README.md - Markdown file with more information about the model including the 3 key ideas, requirements to use, directions to guide a model session, and further reading. Folders 6) IRB - documents required to share with potential collaborators that are required by Utah State University's Institutional Review Board (IRB). 7) ModelGuide - Model guide in MS Word (.docx) and Markdown (.md). The file includes help, background, suggestions for each row in the model, and supporting figures and tables. Links in Column N on the \"Master\" worksheet of the model file lead directly to sections in the Markdown file.本沉浸式在线协作模型旨在让协作参与者获得沉浸式体验并扮演米德湖（Lake Mead）模型中的用水者角色，该模型基于水库来水分流原则构建。模型遵循三大核心运作原则：A）水库来水分流，B）扣除蒸发损耗，C）使用者需在可用水量、他人决策框架内开展用水与节水行为，并围绕决策展开实时讨论。模型中共设置六类用水者角色：垦务局（Reclamation）、加利福尼亚州、亚利桑那州、内华达州、墨西哥，以及科罗拉多河下游流域原住民部落（Tribal Nations of the Lower Colorado River Basin）。 该工具的应用场景分为两类： 1. 供研究人员开展学术研究：探究流域合作伙伴为何选择特定假设及其极端程度；流域合作伙伴如何应对并管理未来供水不确定性带来的风险；参与者从模型研讨中可获得哪些新认知。 2. 引发思考与讨论，以实现两大目标：i）在水库储水量与来水量双低的情境下，稳定并恢复水库库容；ii）赋予使用者更多自主权，以应对自身在水资源短缺中面临的多重冲突性脆弱性。 下文的README文件将提供该模型的更多背景信息、三大核心设计思路，以及下载模型文件、上传至谷歌云盘（Google Drive）、邀请同事/伙伴/亲友参与、开展沉浸式模型研讨的完整操作指南。 本资源包含的内容如下： 1. *ImmersiveModelLakeMeadDivideInflow-LetsStart.pdf*：可视化展示模型三大核心设计思路，并提供模型启动指引的文档。 2. *ImmersiveModelLakeMeadDivideInflow-LetsStart.pptx*：《Let’s Start》文档的PowerPoint版本。 3. *LakeMeadWaterBankDivideInflow.xlsx*：Excel格式的模型文件。请下载后上传至谷歌云盘，邀请他人参与，并按照ReadMe-Directions工作表中的后续指引完成操作。 4. *LakeMeadWaterConservationProgramAnalysis.docx*：本沉浸式模型的研究手稿草稿（Word格式），该手稿同时介绍了当前米德湖节水（Intentionally Created Surplus）计划的10项实施成效。 5. *README.md*：包含模型更多信息的Markdown文件，涵盖三大核心设计思路、使用要求、模型研讨指导流程及延伸阅读材料。 附属文件夹说明： 6. **IRB**：犹他州立大学（Utah State University）机构审查委员会（Institutional Review Board, IRB）要求向潜在协作对象分享的合规文件。 7. **ModelGuide**：包含Word（.docx）与Markdown（.md）两种格式的模型指南。该指南涵盖操作帮助、背景信息、模型各行列的使用建议，以及配套支撑图表与表格。模型文件"Master"工作表的N列链接可直接跳转至Markdown指南的对应章节。