ABSTRACT: Bias correction (BC) is commonly used to refine dynamical climate model results for use in applied research. However, uncertainties linked to the BC of multivariate meteorological indices, crucial for many applied research applications, are often underappreciated. Focusing on daily maximum values of the multivariate heat index (HI, a function of temperature and relative humidity), thi…
ABSTRACT: The algorithms currently in use for calculating the wet-bulb temperature from pressure, relative humidity, and air temperature have errors of a degree or more. Here, the equation for the thermodynamic wet-bulb temperature is derived using the Rankine?Kirchhoff approximations, which are highly accurate for meteorological and climatological applications. Likewise, equations are derived …
ABSTRACT: Gust factors are widely used in engineering applications to adjust wind data to standard siting and roughness conditions. Multiyear average gust factors have been typically applied in the applications. Using 1-min Automated Surface Observing System (ASOS) data from over 500 stations in the contiguous United States, the gust factor record is assessed for significant discontinuities usi…
ABSTRACT: The study presents a comprehensive analysis of long-term climate trends in Setif, Algeria, a representative semiarid highland station, using a 125-yr dataset (1900-2024) of monthly and annual precipitation and maximum and minimum temperature. Given the discontinuities in the historical dataset, two neighboring reference stations (Batna and Constantine) and three imputation methods wer…
ABSTRACT: This study conducts numerical simulations using the Weather Research and Forecasting (WRF) Model to evaluate the impact of urbanization on precipitation in the Osaka metropolitan area, a megacity adjacent to the sea and mountains. The simulations were conducted for 320 events on which convective precipitation was likely to occur. The results of the control (CTRL) experiment, which use…
ABSTRACT: A gridded wet-bulb globe temperature (WBGT) climatology for the southeastern United States is presented, emphasizing athlete and worker safety thresholds. Hourly WBGT estimates are derived from the land component of the fifth generation European Centre for Medium-Range Weather Forecasts atmospheric reanalysis (ERA5-Land) and validated using U.S. Climate Reference Network estimates fro…
ABSTRACT: The marine atmospheric boundary layer influences the evolution of evaporation duct height (EDH) by altering the vertical profile of the refractive index. The EDH is a crucial parameter for marine and naval communication. Many studies have demonstrated the sensitivity of boundary layer similarity theory in estimating the vertical profile of refractive index. The current study modifies …
ABSTRACT: Evaluation methods for regional climate models (RCMs) commonly rely on point comparisons with observed meteorological fields, which provide limited understanding of the spatial and temporal representations of important factors affecting urban areas in models. These factors are not only complex but also difficult to differentiate, which complicates their analysis. This study thus devel…
ABSTRACT: Northeast China experiences significant snowstorms during winter. However, the microphysics of snowfall in this area remains poorly understood. This study aims to address this gap by comparing the microphysical characteristics and related meteorological conditions of wet and dry snow in Northeast China. The results indicate that the number concentration (NC) of wet snow is approximate…
ABSTRACT: The morning transition is the period when the planetary boundary layer (PBL) transitions from stable to unstable conditions. It is critical that numerical weather prediction (NWP) models sufficiently represent the various forcings that contribute to the PBL heat and moisture budgets during the morning transition, as they impact forecasts of air quality, turbulence, aerosol dispersion,…
ABSTRACT: Parametric wind models can be used to formulate the wind distribution under a tropical cyclone (TC) as a simple function with a reduced set of parameters. Here, a range of 10 symmetric parametric models are fitted to a dataset of 920 surface wind radial profiles derived from synthetic aperture radar (SAR) high-resolution observations. Multiple lin- ear regressions are performed to exp…
ABSTRACT: New gridded lightning climatology datasets are compiled and released from a series of low-Earth-orbiting NASA lightning sensors: the Optical Transient Detector (OTD), Tropical Rainfall Measuring Mission (TRMM) Lightning Imaging Sensor (LIS), and International Space tation (ISS) LIS. OTD collected data during April 1995-March 2000, TRMM LIS collected data during December 1997- April 2…
Buku ini adalah buku matematika teknik yang membahas secara khusus tentang Transformasi Laplace dan penerapannya. Buku ini menyajikan teori-teori singkat dan pemecahan masalah matematis yang berhubungan dengan Transformasi Laplace. Buku ini membahas beberapa bab, di antaranya konsep dasar transformasi Laplace, Transformasi Laplace fungsi-fungsi sederhana, Transformasi Laplace Invers, Transforma…
Automated Weather Observing System (AWOS) merupakan sebuah sistem terkomputerisasi yang secara otomatis mengukur parameter cuaca untuk keperluan layanan informasi cuaca penerbangan. Pengetahuan mengenai prinsip kerja sistem, karakteristik peralatan, dan metode pemeliharaan AWOS sangat diperlukan untuk menjamin peralatan berfungsi secara optimal. Buku ini menyajikan pembahasan lengkap mengenai p…
Buku Hidrometeorologi: Proses Fisik di Atmosfer (Bagian 1) karya Daniel Murdiyarso membahas prinsip dasar dan proses fisik yang terjadi di atmosfer terkait dengan keberadaan dan pergerakan air. Materi mencakup siklus hidrologi, pembentukan awan, presipitasi, serta interaksi antara atmosfer dan sistem hidrologi. Buku ini menekankan pemahaman mekanisme fisik atmosfer sebagai dasar kajian hidromet…
Buku ini merupakan buku fisika yang disusun dengan tujuan memandu mahasiswa dalam mempelajari mata kuliah fisika. Dalam buku ini terdapat sebelas Tugas Pendahuluan dan 24 Lembar Kerja Mahasiswa yang mencakup sebelas pokok bahasan dalam mata kuliah Fisika Dasar. Sebelas pokok bahasan tersebut adalah Pengukuran dan Ketidakpastian Pengukuran; Kinematika Satu Dimensil Kinematika Dua Dimensi; Gerak …
Penekanan utama kompetensi yang diharapkan dikuasai mahasiswa melalui pembelajaran menggunakan buku ini adalah penguasaan konsep fisika. Penulis meyakini bahwa seorang guru akan memiliki kompetensi menjelaskan materi fisika kepada siswanya dengan tingkat efektivitas do efisiensi yang optimal apabila guru tersebut memiliki penguasaan konsep konsep fisika yang memadai.