Revitalizing a field wireless network for research, education and outreach at the Harvard Forest

振兴哈佛森林的研究、教育和推广现场无线网络

基本信息

  • 批准号:
    2129580
  • 负责人:
  • 金额:
    $ 16.16万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2021
  • 资助国家:
    美国
  • 起止时间:
    2021-10-01 至 2024-09-30
  • 项目状态:
    已结题

项目摘要

Research in environmental science is increasingly dependent on sensor arrays, computer networks, and near-real-time data processing and visualization. At the Harvard Forest, the Field Wireless Network extends the university computer network into the research forest where there is little or no cell phone reception. Since 2010 the Field Wireless has supported a wide range of research projects with investigators from many different institutions, resulting in (as of March 2021) 27 datasets publicly available online and 291 related scientific publications. Many of these projects are long-term experiments associated with the LTER and AmeriFlux networks; others are short-term projects by researchers drawn to the Forest because of its infrastructure and long-term data. The Field Wireless enables scientists to monitor and control their equipment and collect data remotely, reducing travel costs and loss of data from problems that would otherwise have gone undetected since the last in-person visit. In recent years, and especially after the onset of the pandemic, the Field Wireless has supported virtual field trips and remote instruction, broadening the audience and geographic reach of the Forest’s education and outreach efforts. This project will greatly improve the performance of the Field Wireless by significantly increasing network bandwidth and the number of sites with Wi-Fi capability. These improvements will enable exciting new possibilities for research, including data collection from more extensive sensor arrays, video streaming, and near-real-time ecological forecasting. They will also expand the number and diversity of field sites available for remote instruction, especially benefiting groups that are underrepresented in the sciences and often unable to visit the Forest in person due to distance, cost, or physical accessibility. Virtual field trips and remote learning via the Field Wireless will remain a major means for a reaching a broader audience long after the pandemic has receded.This project will expand and revitalize the Harvard Forest Field Wireless Network, which was commissioned in 2010 with support from NSF, DOE, and Harvard University and is jointly managed by the Forest and Harvard Network Operations. The Field Wireless currently provides Internet access to field sites spread across the 375-ha Prospect Hill Tract, including 10 major sites with a walk-in equipment shed, 24-port network switch, and wireless access point (AP), and 10 minor sites with an instrument enclosure and data logger or phenology camera. Sites are connected by carrier-grade unlicensed spread-spectrum radios: 5.8 GHz radios for tower-to-tower communications with unobstructed line of sight and 900 MHz radios for tower-to-ground communications through the forest canopy. Network bandwidth is limited by the radios and ranges from 2 to 5 Mbps, depending on the site. A dedicated virtual private network (VPN) allows researchers to access their equipment remotely when not at the Forest. This project will retain the basic design of the Field Wireless but greatly improve its performance by (1) replacing the current radios (which are no longer available) with new radios at least an order of magnitude faster, (2) adding two new experimental sites, (3) adding Wi-Fi capability at nine sites that currently lack it, and (4) augmenting Wi-Fi at four sites that are regularly used for education and outreach. The resulting increase in network bandwidth and Wi-Fi availability will significantly improve support for data-intensive research projects, virtual field trips, and remote instruction; by improving communications, it will also enhance safety for students and scientists working in the Prospect Hill Tract of the Harvard Forest (https://harvardforest.fas.harvard.edu).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
环境科学的研究越来越依赖于传感器阵列、计算机网络以及近实时数据处理和可视化。在哈佛森林,现场无线网络将大学计算机网络延伸到研究森林,那里很少或根本没有手机接收。自2010年以来,Field Wireless与来自许多不同机构的研究人员一起支持了广泛的研究项目,截至2021年3月,已有27个数据集在网上公开,并发表了291篇相关的科学出版物。其中许多项目是与LTER和AmeriFlux网络有关的长期实验;其他项目是因森林的基础设施和长期数据而被吸引到森林的研究人员的短期项目。Field Wireless使科学家能够远程监控和控制他们的设备并收集数据,从而减少旅行成本和数据丢失,这些问题自上次亲自访问以来一直未被发现。近年来,特别是在大流行病爆发后,实地无线支助了虚拟实地考察和远程教学,扩大了森林教育和外联工作的受众和地理范围。该项目将通过大幅增加网络带宽和具备Wi-Fi功能的站点数量,大大改善外地无线网络的性能。这些改进将为研究带来令人兴奋的新可能性,包括从更广泛的传感器阵列收集数据,视频流和近实时生态预测。它们还将扩大可用于远程教学的实地地点的数量和多样性,特别是使那些在科学领域代表性不足的群体受益,这些群体往往由于距离、费用或实际可达性而无法亲自访问森林。在疫情消退很长一段时间后,虚拟实地考察和通过实地无线网络进行远程学习仍将是接触更广泛受众的主要手段。该项目将扩大和振兴哈佛森林实地无线网络,该网络于2010年在美国国家科学基金会、美国能源部和哈佛大学的支持下投入使用,由森林和哈佛网络运营部门共同管理。Field Wireless目前为分布在375公顷前景山区的现场提供互联网接入,包括10个带有步入式设备棚、24端口网络交换机和无线接入点(AP)的主要现场,以及10个带有仪器外壳和数据记录器或物候相机的次要现场。各地点通过电信级无执照扩频无线电连接:5.8千兆赫无线电用于塔对塔通信,视线畅通无阻,900兆赫无线电用于塔对地通信,通过森林树冠层。网络带宽受无线电的限制,范围从2到5 Mbps,具体取决于站点。一个专用的虚拟专用网络(VPN)允许研究人员在不在森林时远程访问他们的设备。该项目将保留现场无线的基本设计,但通过以下方式大大提高其性能:(1)更换现有无线电(不再可用)使用新的无线电至少快一个数量级,(2)增加两个新的实验站点,(3)在目前缺乏Wi-Fi功能的九个站点增加Wi-Fi功能,以及(4)在四个经常用于教育和外展的地点增加Wi-Fi。由此带来的网络带宽和Wi-Fi可用性的增加将显著改善对数据密集型研究项目、虚拟实地考察和远程教学的支持;通过改善通信,它还将提高在哈佛森林(https://www.example.com)的前景山区工作的学生和科学家的安全性harvardforest.fas.harvard.edu。该奖项反映了NSF的法定使命,并通过使用基金会的学术价值和更广泛的影响审查标准。

项目成果

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