Results 91 to 100 of about 10,703 (257)

Soil Moisture Impact on Convective Initiation

open access: yesWater Resources Research, Volume 62, Issue 7, July 2026.
Abstract The influence of soil moisture on convective storm initiation remains an open question, with previous studies showing conflicting results regarding whether storms preferentially form over wet or dry soils. Here, we analyze the soil moisture‐convection relationship using satellite observations across North America, Africa, and Australia from ...
Faisal AlNasser   +2 more
wiley   +1 more source

The end-of-life disposal of the Italian geostationary satellites

open access: yesAdvances in Space Research, 2004
To date, four Italian satellites have been launched in geostationary orbit: SIRIO, Italsat 1, Italsat 2, and SICRAL. Of these, only the latter is still operational: SIRIO was abandoned close to the geopotential equilibrium point at 75? E in 1985; Italsat 1 was re-orbited above the geosynchronous altitude at the beginning of 2001; and Italsat 2 was ...
Anselmo L, Pardini C
openaire   +5 more sources

The underappreciated roles of fog and dew on vegetation and biocrusts

open access: yesNew Phytologist, Volume 251, Issue 1, Page 46-63, July 2026.
Summary Fog and dew represent minor components of ecosystem water budgets in most ecosystems. However, fog and dew can play an essential role in ecosystem dynamics and are particularly important for water‐limited systems. In addition to serving as direct water inputs, fog and dew can influence microclimate and water redistribution, thereby promoting ...
Lixin Wang, Yue Li, Mengyun Sun, Na Qiao
wiley   +1 more source

Transmitter diversity verification on ARTEMIS geostationary satellite

open access: yes, 2014
Optical feeder links will become the extension of the terrestrial fiber communications towards space, increasing data throughput in satellite communications by overcoming the spectrum limitations of classical RF-links. The geostationary telecommunication
Mata Calvo, Ramon   +13 more
core   +1 more source

Artificial neural-network technique for precipitation nowcasting from satellite imagery [PDF]

open access: yesAdvances in Geosciences, 2006
The term nowcasting reflects the need of timely and accurate predictions of risky situations related to the development of severe meteorological events. In this work the objective is the very short term prediction of the rainfall field from geostationary
G. Rivolta   +4 more
doaj  

Inverting the East Asian Dust Emission Fluxes Using the Ensemble Kalman Smoother and Himawari-8 AODs: A Case Study with WRF-Chem v3.5.1

open access: yesAtmosphere, 2019
We present the inversions (back-calculations or optimizations) of dust emissions for a severe winter dust event over East Asia in November 2016. The inversion system based on a fixed-lag ensemble Kalman smoother is newly implemented in the Weather ...
Tie Dai   +7 more
doaj   +1 more source

Imminent Localized Precipitation Preceded by a Surge in Cloud‐Base Descent and Reflectivity

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The nowcasting of localized precipitation (LP) is often limited by insufficient observation of the vertical cloud evolution preceding rainfall. Here we systematically tracked rapid cloud development within 2 hr before LP onset, utilizing cloud data collected in 2024 from the millimeter‐wavelength cloud radar network across China, together with
Zhen Zhang   +10 more
wiley   +1 more source

Robust Satellite Technique ( RST-FIRES ) for timely detection of forest fires by geostationary satellite

open access: yes, 2013
Usefulness of satellite systems in monitoring fires has been being recognized for years, but satellitebased methods have been originally applied only to polar-orbiting sensor data like NOAA-AVHRR (National Oceanic and Atmospheric Administration ...
PACIELLO, Rossana   +6 more
core  

Mean Orbital Elements for Geosynchronous Orbit - I - Semi-major, eccentricity, and longitude of perigee [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1989
The mean orbital elements for geosynchronous satellite are developed in terms of non-singular orbital elements. The true satellite position oscillates about the position calculated from the mean elements due to short period perturbations to the satellite
Kyu-Hong Choi   +3 more
doaj  

A Novel Ice Cloud Optical Property Model for Passive and Active Remote Sensing Applications

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract A new broad‐spectrum ice cloud optical property model, namely the Passive‐Active Remote Sensing Consistent (PARSC) model, is developed to achieve consistency between passive and active sensor‐based ocean‐occurring ice cloud property retrievals.
J. Coy   +4 more
wiley   +1 more source

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