Results 41 to 50 of about 1,788,071 (189)

Spatial observation‐error correlations for AMSU‐A in all‐sky assimilation: An ECMWF and UK Met Office intercomparison

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Assimilation of AMSU‐A all‐sky observations can be increased up to fivefold if spatial observation‐error correlations are accounted for properly. New correlation estimates derived using data from ECMWF and the UK Met Office reveal that correlation length‐scales are between 75 and 150 km for AMSU‐A channels peaking in the troposphere. This is attributed
Rishabh Bhatt, Massimo Bonavita, Niels Bormann, Sarah L. Dance, Alison Fowler, Elías Hólm, Christopher J. Merchant, Jonathan Mittaz, Stuart Newman, Joanne Waller   +9 more
wiley   +1 more source

Unshielded precipitation gauge collection efficiency with wind speed and hydrometeor fall velocity

, 2021
Collection efficiency transfer functions that compensate for wind-induced collection loss are presented and evaluated for unshielded precipitation gauges.
Earle, Michael E, Joe, Paul, Hoover, Jeffery   +2 more
core   +1 more source

Modeling rainfall drop size distribution moments using an S‐band polarimetric radar in complex terrain

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Using S‐band dual‐polarization radar and disdrometers during PRECIP 2022 in Taiwan, we analyze a Mei‐Yu frontal event with widespread stratiform rain and embedded convection. Multiple disdrometers are used to create a novel drop size distribution model for S‐band radars resolving both the drizzle and precipitation modes. The model reveals both inferred
Ian C. Cornejo, Angela K. Rowe, Michael M. Bell, Wei‐Yu Chang   +3 more
wiley   +1 more source

Characteristics of upper‐level updrafts and downdrafts in the anvils of tropical deep convective clouds

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study investigates the thermodynamic and microphysical characteristics of updrafts and downdrafts of tropical deep convective anvil clouds using in situ measurements. We found that parts of the downdrafts are in ice supersaturation in these clouds.
Sreehari Kizhuveettil, Jordi Vila‐Guerau de Arellano, Martina Krämer, Armin Afchine, Luiz A. T. Machado, Martin Zöger, Wiebke Frey   +6 more
wiley   +1 more source

Drop size distribution measurements in rain — a comparison of two sizing methods

Meteorologische Zeitschrift, 1996
First results of raindrop size measurements obtained by two instruments whose operation principles are basically different are presented and the necessary procedure of comparison is described.
M. Löffler-Mang, K. D. Beheng, H. Gysi
doaj   +1 more source

Impact of fragmented urbanization on observed precipitation

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study investigates the impact of fragmented urban landscapes on downwind precipitation by applying an innovative observation‐centered approach to an extensive rain gauge network in Belgium. The approach classifies the observations based on the upwind urban land cover fraction, and compares precipitation indices between rural‐ and urban‐labeled ...
Amber Jacobs, Kwinten Van Weverberg, Steven Caluwaerts   +2 more
wiley   +1 more source

Empirical-based hydrometeor identification algorithm using GMI brightness temperatures and WSR-88D derived hydrometeor classification

, 2023
This research uses passive microwave brightness temperatures (TB) from the Global Precipitation Measurement Mission (GPM) Microwave Imager (GMI), and hydrometeor identification (HID) data from the GPM Ground Validation Network (GVN).
Solomon, Michael B.
core   +1 more source

Lightning electromagnetic emission location using arrival time differencing (LEELA): An introduction to the Met Office's next generation Very Low Frequency lightning location system

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This paper describes the Met Office's new lightning location system LEELA. A brief overview of the upgraded hardware and geolocation algorithms is given. LEELA has improved lightning detection capabilities, especially at night. When comparing LEELA to the previous ATDnet system against ground truths LEELA has 100% storm detection efficiency within 5 km
Graeme Marlton, Mike Protts, Stephen Prust, Edmund Keith Stone, Debbie O'Sullivan, Sue Twelves, Francesco Devoto, Claire Witham   +7 more
wiley   +1 more source

Classification of Hydrometeors Using Measurements of the Ka-Band Cloud Radar Installed at the Milešovka Mountain (Central Europe)

Remote Sensing, 2018
In radar meteorology, greater interest is dedicated to weather radars and precipitation analyses. However, cloud radars provide us with detailed information on cloud particles from which the precipitation consists of.
Zbyněk Sokol, Jana Minářová, Petr Novák   +2 more
doaj   +1 more source

Hydrometeor classification with a C-band polarimetric radar

Australian Meteorological Magazine, 2003
An empirically based fuzzy logic microphysical classification scheme is described using C-band polarimetric radar measurements. Polarimetric power and differential phase measurements in both radial and cartesian space are employed to define membership functions in two-dimensional subspaces and are then coupled with a temperature-dependent membership ...
openaire   +1 more source