Next Generation In Situ Measurements of Stratospheric Aerosol

平流层（10-30公里）中的小颗粒会影响臭氧层，臭氧层保护生命免受有害的紫外线太阳辐射，也会影响气候。这些平流层气溶胶受火山、自然和人类活动的控制，产生含硫气体或颗粒。美国在怀俄明州的拉勒米上空记录了40年来最长的粒子垂直分布记录，这对校准模型和验证卫星非常宝贵。有一个监狱需要继续这一长期记录，现代化的仪器-使他们更好，更轻，更便宜，并保持美国在仪器和科学的领导地位。该提案通过开发一种紧凑的现代商业传感器和指导一名年轻的PI接管领导和过渡业务，以实现这一目标。该项目将平流层气溶胶的长期气球测量扩展到30公里，以建立在独特的40年气溶胶浓度和大小的剖面记录基础上。该研究中心将从拉勒米，怀俄明州转移到博尔德，CO，该计划包括指导新的领导者（目前为共同主要研究者）。仪器有效载荷将通过采用商业光学粒子计数器（Lighthouse Remote 3104洁净室粒子光谱仪）进行现代化改造，这将扩大能力，减少尺寸，重量和成本，并提高可部署性。气溶胶廓线对于了解平流层气溶胶-化学的长期相互作用、卫星反演和验证以及对流层-平流层对气候变化的耦合反应至关重要。 该项目的范围被重新调整，重点是下一代气溶胶剖面系统的设计和验证，并建立2个原型，并进行有限的飞行测试和验证对目前的仪器。该项目还将开始将活动转移到科罗拉多州博尔德，包括硬件和新PI。 过渡工作应导致竞争性的未来科学提案，并为大气化学，气候和以科罗拉多州博尔德为中心的卫星验证创建长期的气球气溶胶，痕量气体和水剖面测量协同监测，并维护美国的领导地位。

Small particles in the stratosphere (10-30 km) affect the ozone layer that protects live from harmful ultraviolet solar radiation and also affect climate. These stratospheric aerosols are controlled by volcanic, natural and human activities that produce sulfur containing gases or particles. The US has the longest 40-year record of the vertical distribution of particles that has been made over Laramie, WY that has been invaluable to calibrate models and validate satellites. There is a prisoning need to continue this long-term record, modernize the instruments - making them better, lighter and cheaper and maintain US leadership in instrumentation and science. This proposal achieves this by developing a compact modern commercial sensor and mentoring a young PI to take over the leadership and transition operations to Boulder, CO.The project expands the long-term balloon borne measurements of stratospheric aerosols up to 30 km to build upon a unique 40-year record of profiles of aerosol concentration and size. The site will be transitioned from Laramie, WY to Boulder, CO and the plan includes the mentoring a new leader (currently co-PI). The instrument payload will be modernized by adapting a commercial optical particle counters (Lighthouse Remote 3104 clean room particle spectrometer) that will extend the capability and reduce size, weight and costs and enhance deployability. The aerosol profile is crucial for the understanding of long-term stratospheric aerosol-chemistry interactions, satellite retrievals and validation and troposphere-stratosphere coupling response to climate change. The project was re-scoped to focus on the design and validation of a next generation aerosol profiling system and build 2 prototypes and perform limited flight-testing and validation against current instrument. The project will also begin the transition of the activity to Boulder, CO including hardware and a new PI. The transition effort should result in competitive future science proposals and create long-term synergistic monitoring of balloon borne aerosol, trace-gas and water profile measurements for atmospheric chemistry, climate and satellite validation centered in Boulder, CO and assert US leadership.