Nimbostratus Clouds - an overview | ScienceDirect Topics
Nimbostratus clouds are deep clouds that produce substantial rain or snow due to their vertical extent, distinguishing them from shallower cloud types like stratus and stratocumulus. They are often associated with organized storm systems and can occur in both midlatitudes and tropics. AI generated definition based on: International Geophysics, 2014
Nimbostratus and the Separation of Convective and Stratiform ...
2014年1月1日 · In other contexts, the nimbostratus cloud may be adjacent to and dependent on the outflow from active deep convective clouds. In other cases, it may be the remains of earlier active deep convective clouds and sometimes contains embedded residual convective cells. To understand deep precipitating clouds, it is often important to separate the ...
Chapter 6 Nimbostratus - ScienceDirect
1993年1月1日 · What is known about these aspects of nimbostratus has been inferred largely from observations of the cloud microphysics and radar-echo structure of this cloud type and its precipitation. From radar and microphysical data, certain characteristics of the air motions that must be present within nimbostratus to produce the radar echoes and ...
Cloud structure and crystal growth in nimbostratus
2002年1月1日 · Earlier studies (e.g., Lo and Passarelli, 1982, Herzegh and Hobbs, 1985, Gordon and Marwitz, 1986, Bower et al., 1996, Field, 1999) agree that the evolution of ice crystals in nimbostratus is dominated by depositional growth in the upper regions of the cloud, and is followed by aggregation as the crystals grow to larger sizes.
Observed microphysical structure of nimbostratus in northeast …
2014年6月1日 · The evolution of ice crystals in ice phase-dominated cloud such as nimbostratus is thought to begin with depositional growth in the upper regions of the cloud, followed by aggregation after a sufficient number of large particles have formed (Lo and Passarelli, 1982, Herzegh and Hobbs, 1985, Gordon and Martwitz, 1986, Field, 1999). Evidence for ...
Nimbostratus and the Separation of Convective and Stratiform ...
2014年1月1日 · The occurrence of shallow, weak convective cells in a layer aloft is frequently noted in the nimbostratus of frontal and orographic clouds (Chapters 11 and 12). These generating cells may also occur in the nimbostratus cloud decks of mesoscale convective systems or tropical cyclones (Chapters 9 and 10). The discussion in this section is based ...
Electrical signatures of Nimbostratus and Stratus clouds in ground ...
2018年9月1日 · In EGATEC the cloud region 4 (in general thunderstorms and convective shower clouds) and cloud region 5 (in general mid-level layer clouds with precipitation such as Nimbostratus) (Odzimek et al., 2010, Table 1) have been set as generator regions with current source density as defined in Odzimek et al. (2010), (Table 3), and parametrised ...
Pathways of ice multiplication in nimbostratus clouds during the …
2024年10月15日 · This study presents a set of cloud microphysical measurements in a mixed-phase monsoon nimbostratus cloud during the Cloud Aerosol Interaction and Precipitation Enhancement Experiment (CAIPEEX) observed over the Indian peninsula. Radar measurements and airborne observations of in situ cloud microphysics are presented in the study.
Electrical signatures of Nimbostratus and Stratus clouds in ground ...
2018年9月1日 · Nimbostratus (Ns) and Stratus (St) are cloud genera described as stratiform, i.e. in the form of broad cloud sheets characterised by little vertical motion – contrary to cumuliform clouds formed by rising air currents, such as Cumulus clouds …
Cirrostratus Clouds - an overview | ScienceDirect Topics
The tops of dark, steadily precipitating nimbostratus clouds can be as shallow as 2–3 km and even be above freezing in temperature, or they may reach above 13 km (at cirriform cloud levels) and be as cold as −80°C. At elevations above the freezing level, nimbostratus is largely composed of ice crystals and snowflakes, though embedded thin ...