Climate Change Data Portal
| INVESTIGATING FUTURE SPACEBORNE LIDAR AEROSOL TYPING CAPABILITIES USING IMPROVED AEROSOL OPTICAL PROPERTIES IN THE NASA GEOS-5 AGCM | |
| 项目编号 | NNX16AI08G S02 |
| Edward Nowottnick | |
| 项目主持机构 | UNIVERSITIES SPACE RESEARCH ASSOCIATION, |
| 开始日期 | 2016-04-13 |
| 结束日期 | 2019-04-12 |
| 英文摘要 | A Highly Miniaturized Cloud and Aerosol Instrument Package for Small UAV’s—SPEC Incorporated, 3022 Sterling Circle - Suite 200, Boulder, CO 80301-2377Paul Lawson, Principal Investigator, plawson@specinc.comPaul Lawson, Business Official, plawson@specinc.comAmount: $1,478,816.65 The dramatic warming in the Arctic, a rate which is nearly twice the global average, is now well documented. Mixed-phase clouds predominate from spring through early winter in the Arctic and exhibit a particularly strong nonlinear influence on the surface energy budget in the Arctic. Due to their large spatial extent, persistence and the radiative properties, mixed-phase clouds have a major impact on surface radiative fluxes and energy balance, which are critical to climate change. Climate models depend on microphysical and radiative properties of Arctic clouds retrieved from long-term satellite measurements. However, satellite retrieval of microphysical and radiative cloud properties is not a mature science and requires in situ airborne measurements to tune the retrievals. While there have been a few notable Arctic field projects using instrumented research aircraft, such projects are very costly and provide aircraft datasets that span only a few months at a time. UAV’s and tethered balloon systems offer significant advantages over conventional research aircraft. They are capable of long-duration measurements of cloud properties in regions where piloted aircraft are unsafe, e.g., at very low altitudes over remote regions, such as tundra and open ocean. Tethered balloons and UAV’s are now widely recognized as a technology that can provide unprecedented insights into cloud and radiation processes, but development of miniature sensors capable of providing sophisticated measurements of cloud, aerosol and radiative properties lag behind. The company designed and fabricated a unique sensor that combines three optical cloud particle probes in a small, lightweight (3 kg) instrument that can be installed on small UAV’s and tethered balloons. The miniature combination optical particle probe (micro-COPP) measures the size distribution of cloud particles from 2 microns to several millimeters and records high-definition images that distinguish ice particle from water drops, which is essential in mixed-phase clouds. The micro-COPP was tested in the company’s calibration laboratory and also on the company’s tethered balloon system. Particle size distributions and high-definition images of ice particles and water drops in mixed-phase clouds were recorded in Phase I. SPEC Inc. propose to install the micro-COPP along with miniature instruments to measure aerosols, cloud condensation nuclei, ice nuclei, position and atmospheric state parameters on a small, electrically-powered UAV that will participate in a pilot project in the Arctic. The UAV will be supplied by a subcontractor that is a leader in the design and fabrication of small composite UAV’s. In addition, SPEC Inc. will supply our unique tethered balloon system with a similar instrument package plus a new, 4- radiometer that measures actinic flux in six wavebands from 440 to 1640 nm. The pilot field project will be conducted at Oliktok Point, Alaska (if available), or at Ny-Ålesund, Svalvard, where UAV’s are allowed to fly in mixed-phase clouds. Collected data will be placed in the DOE archives and analyzed by company scientists and university subcontractors. Anticipated results include improved radiative transfer retrievals and models. The Arctic is warming at twice the rate of other areas around the globe, largely due to the effects that aerosols and thin stratus clouds have on heating at the surface. Long-term airborne measurements of aerosol and cloud properties are needed. Small unmanned aerial vehicles can perform this task, but require miniature sensor packages such as those described in this proposal Commercial Applications and Anticipated Benefits: Long-term in situ measurements of the effects that clouds and aerosols have on climate in Polar Regions will improve the parameterizations of climate prediction models, giving scientists and politicians a better awareness of how to prepare for ice melt, habitat change, sea-level rise and the impact on coastal populations. Small UAV’s are an emerging market that will eventually routinely monitor gases and aerosols in urban environments, thereby aiding in identifying statutory violators; aerosols and clouds that are generated from forest fires and ash from volcanic eruptions that have a strong impact on aviation safety. |
| 学科分类 | 03 - 天文学;1107 - 航空航天工程;11 - 工程与技术 |
| 资助机构 | US-NASA |
| 国家 | US |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/73878 |
| 推荐引用方式 GB/T 7714 | Edward Nowottnick.INVESTIGATING FUTURE SPACEBORNE LIDAR AEROSOL TYPING CAPABILITIES USING IMPROVED AEROSOL OPTICAL PROPERTIES IN THE NASA GEOS-5 AGCM.2016. |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Edward Nowottnick]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Edward Nowottnick]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Edward Nowottnick]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
