论文标题
测试摩洛哥现场活动数据的当地风侵蚀和尘埃沉积的新模型。火星模型的改编
Testing a new model of local wind erosion and dust deposition on field campaign data in Morocco. Adaptation of the model for Mars
论文作者
论文摘要
全局和中尺度模型代表了火星上的背景（缓慢变化），但没有明确表示短时间的风变化。局部风侵蚀和灰尘沉积模型可用于更准确的局部风摩擦，风摩擦阈值，水平砂通量和火星上的垂直灰尘通量建模。本文提出了基于Zender \ cite {zender}模型的模型。它包括不同的阈值风摩擦估计方法，并考虑了大气电场对沙子和尘埃升高过程的影响。对地球参数化的模型已在2013-2014（Esposito等，）\ cite {esposito}，\ cite {esposito2}中测试。通过使用以下在现场测量的输入来模拟风摩擦，风摩擦阈值，水平砂通量和垂直灰尘通量：风速，风向，空气温度，气温，气压，空气湿度，太阳辐射和表面粗糙度长度。相同的输入也应该通过火星上的梦想设备来衡量（除了表面粗糙度长度，可以根据赫布拉德\ cite {hebrard}的方法估算火星。模拟和实验值显示出良好的一致性。该模型适应了火星条件，并应用于维京着陆器的数据。针对火星参数的局部风侵蚀和尘埃沉积模型可以使用1）分析本地登录器/流浪者数据，2）MGCM（火星全球循环模型）的局部参数/输入的来源（例如阈值风摩擦速度，沙子和灰尘磁通量）。
Global and mesoscale models represent the background (slowly varying) winds on Mars, but short timescale wind variability is not explicitly represented. The local wind erosion and dust deposition model can be useful for more accurate local wind friction, wind friction threshold, horizontal sand flux and vertical dust flux modeling on Mars. Such a model based on the model of Zender \cite{Zender} is proposed in this article. It includes different methods of threshold wind friction estimation and takes into account the influence of atmospheric electric fields on sand and dust elevation processes. The model parameterized for the Earth was tested on data acquired in Morocco field campaign 2013-2014 (Esposito et al.,) \cite{Esposito}, \cite{Esposito2}. Wind friction, wind friction threshold, horizontal sand flux and vertical dust flux were simulated by using the following inputs measured in the field: wind speed, wind direction, air temperature, air pressure, air humidity, solar irradiation and surface roughness length. The same inputs are supposed to be measured by DREAMs equipment on Mars (except for the surface roughness length which can be estimated for Mars according the method of Hebrard \cite{Hebrard}). Simulated and experimental values have shown a good agreement. The model was adapted to Martian conditions and applied to the data of Viking lander. The local wind erosion and dust deposition model parameterized for Mars may serve 1) to analyze local lander/rovers data, 2) a source of local parameters/inputs (like threshold wind friction velocity, sand and dust fluxes) for the MGCM (Mars Global Circulation Model).
