Solar System Laboratory Aeronomy by Electron Impact with Emphasis on Terrestial Processes

9320589 Shemansky在地球的高层大气中，能量收支受粒子碰撞过程和太阳辐射的直接相互作用控制。 为了满足对精确的原子和分子性质的需求，以便了解这些过程，南加州大学（USC）和Calfiornia理工学院的喷气推进实验室（JPL）已经建立了一个程序，该程序将实验室测量和激发反应的非线性建模相结合。 目前的奖项将继续在物种的审查关键的理解观察到的现象。 交叉光束激发和光吸收测量将用于确定精确的激发截面和其他基本的原子和分子性质，如大气模型所需的预解离分数。 将计算出详细的碰撞和辐射非线性体积过程，供其他研究人员建立的更大的大气模型使用。 在这个为期三年的更新任务计划中，USC-JPL将集中研究以下物种：N2，O2，NO，N，O，H及其离子，高层大气中最丰富的原子和分子物种以及配备紫外线传感器的地球轨道卫星（RAIDS，DMSP，Polar Bear，HUP，SMEX，Aura）普遍观测到的物种。 此外，为了在实验室和航天仪器中进行紫外线校准，将重新检查目标气体H2，以解决横截面差异。 为了进行测量，喷气推进实验室将利用三台完全运行的紫外光谱仪，包括美国最高分辨率的单散射紫外仪器，一种新的3米高分辨率光谱仪（ = 67000）与极紫外（EUV）和真空紫外（FUV）阵列检测器。 ***

9320589 Shemansky In the upper atmosphere of the Earth, the energy budget is controlled by both particle collision processes and direct interaction of solar radiation. In response to the need for accurate atomic and molecular properties in order to understand the processes, the University of Southern California (USC) and the Jet Propulsion Laboratory (JPL) of the Calfiornia Institute of Technology have established a program which combines laboratory measurements and non-linear modeling of excitation reactions. The present award will continue in the examination of species critical to the understanding of the observed phenomena. Crossed beam excitation and photoabsorption measurements will be used to define accurate excitation cross sections and other basic atomic and molecular properties such as predissociation fractions required for atmospheric models. Calculations of the combined detailed collisional and radiative non-linear volumetric processes will be produced for utilization by the larger atmospheric models that other researchers have established. In this three-year renewal task plan USC-JPL will concentrate on the species: N2, O2, NO, N, O, H, and their ions the most abundant atomic and molecular species in the upper atmosphere and the species ubiquitously observed by earth orbiting satellites (RAIDS, DMSP, Polar Bear, HUP, SMEX, Aura) equipped with UV sensors. In addition for UV calibration purposes in laboratory and spaceflight instrumentation the target gas H2 will be reexamined to resolve cross section discrepancies. To carry out the measurements JPL will utilize three fully operational UV spectrometers, including the highest resolution single scattering UV instrument in the U.S., a new 3m high resolution spectrometer ( = 67000) with extreme ultraviolet (EUV) and vacuum ultraviolet (FUV) array detectors. ***