Comparison of lightning observed by ASIM on the International Space Station and GLM on the GOES-16 geostationary satellite

<p>The Atmosphere-Space Interactions Monitor includes an optical imaging array consisting of 5 nadir-viewing  sensors , dedicated to monitor electrical discharges in and above thunderstorms. Three photometers sample in 337.0/4 nm, the VUV band 180-230 nm and 777.4/5 nm with a sample rate of 100 kHz while the 2 cameras record in 337.0/3 nm and in 777.4/3 nm with a temporal and spatial resolution of 12 frames per second and ~400 m, respectively. The Geostationary Lightning Mapper (GLM) on the GOES-16 satellite is the first operational space-based lightning detector in geostationary orbit measuring in 777.4/1 nm, with a pixel size of ~8-14 km and temporal resolution of up to 500 frames per second.<br>We present an analysis of the signal amplitudes and detection efficiencies of ASIM and GLM based on three mutually detected storms: one in the center and two on the edges of GLM field of view. We find a dependence of the amplitudes and detection efficiencies on the cloud structure and the observation angles of ASIM and GLM. The best agreement between the instruments appears when ASIM detects towards the nadir, but differences in amplitudes may vary by several orders of magnitude.  The cloud structure offers a potential explanation for these differences which we will explore in the presentation.</p>

EXPLORING CONFIDENTIAL DEDUPLICATION OF DATA USING BIG DATA IN CLOUD COMPUTING STORAGE

To decrease the selecting time and reaction time between Token deals and reaction, File move or download mentioning and results. It diminishes the extent of extra room in flowed limit. To ensure about the assurance of information differential confirmed copy check is utilized. It presents this supported copy check in half and half cloud structure. The mutt cloud arrangement proposes about both the open cloud and the private cloud. So as to give progressively conspicuous security, the private cloud is equipped with staggered check. Kinds of progress in scattered figuring are inciting a promising future for Collaborative Cloud Computing (CCC). To decrease the getting ready time and reaction time between Token deals and reaction, File move or download mentioning and results. Where comprehensive dispersed dissipated cloud assets having a spot with various affiliations or people (i.e., segments) are aggregately utilized in a strong strategy to give organizations. The records are dealt with in the cloud. That is each customer selects an information key to encode the information that he plans to store in the cloud. It depicts a computationally unassuming procedure for making all log portions made. Going before the logging machine's trade off unfathomable for the assailant to examine and besides hard to elusively adjust or wreck. Each Client computes an information key to encode the information that he would like to store in the cloud

Vertical cloud structure of warm conveyor belts – a comparison and evaluation of ERA5 reanalysis, CloudSat and CALIPSO data

Warm conveyor belts (WCBs) are important cyclone-related airstreams that are responsible for most of the cloud and precipitation formation in the extratropics. They can also substantially influence the dynamics of cyclones and the upper-level flow. So far, most of the knowledge about WCBs is based on model data from analyses, reanalyses and forecast data with only a few observational studies available. The aim of this work is to gain a detailed observational perspective on the vertical cloud and precipitation structure of WCBs during their inflow, ascent and outflow and to evaluate their representation in the new ERA5 reanalysis dataset. To this end, satellite observations from the CloudSat radar and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) lidar are combined with an ERA5-based WCB climatology for nine Northern Hemisphere winters. Based on a case study and a composite analysis, the main findings can be summarized as follows. (i) WCB air masses are part of deep, strongly precipitating clouds, with cloud-top heights at 9–10 km during their ascent and an about 2–3 km deep layer with supercooled liquid water co-existing with ice above the melting layer. The maximum surface precipitation occurs when the WCB is at about 2–4 km height. (ii) Convective clouds can be observed above the inflow and during the ascent. (iii) At upper levels, the WCB outflow is typically located near the top of a 3 km deep cirrus layer. (iv) There is a large variability between WCBs in terms of cloud structure, peak reflectivity and associated surface precipitation. (v) The WCB trajectories with the highest radar reflectivities are mainly located over the North Atlantic and North Pacific, and – apart from the inflow – they occur at relatively low latitudes. They are associated with particularly deep and strongly precipitating clouds that occur not only during the ascent but also in the inflow and outflow regions. (vi) ERA5 represents the WCB clouds remarkably well in terms of position, thermodynamic phase and frozen hydrometeor distribution, although it underestimates the high ice and snow values in the mixed-phase clouds near the melting layer. (vii) In the lower troposphere, high potential vorticity is diabatically produced along the WCB in areas with high reflectivities and hydrometeor contents, and at upper levels, low potential vorticity prevails in the cirrus layer in the WCB outflow. The study provides important observational insight into the internal cloud structure of WCBs and emphasizes the ability of ERA5 to essentially capture the observed pattern but also reveals many small- and mesoscale structures observed by the remote sensing instruments but not captured by ERA5.