Evapotranspiration (ET) may account for up to 70% of the annual precipitation even in humid region. Understanding ET is essential management water resource, crop requirement as well irrigation designs/scheduling etc. Therefore, this study tries analyze potential over Enugu State using meteorological data from weather stations and compared results obtained with that satellite remote sensed techn...

the main limitation of radar interferometry in measuring ground displacements is due to phase propagation delays caused by the troposphere. tropospheric water vapor is a major limitation for high precision interferometric synthetic aperture radar (insar)applications. using global meteorological reanalysis models and merisdata are two methods that can be used for correcting the effects of the tr...

Following the eruption of Mount Pinatubo, satellite and in situ measurements showed a large enhancement in stratospheric aerosol in both hemispheres, but significant midlatitude column O3 depletion was observed only in the north. We use a three-dimensional chemical transport model to determine the mechanisms behind this hemispheric asymmetry. The model, forced by European Centre for Medium-Rang...

A 141m-deep ice-core was retrieved from Combatant Col (51.39° N, 125.22° W, 3000m), Mount Waddington, Coast Mountains, British Columbia, Canada. Records of black carbon, dust, lead, and water stable-isotopes show that unambiguous seasonality is preserved throughout the core, despite summer surface snowmelt and temperate ice. High accumulation rates at the site (in excess of 5 m a) limit modific...

Moisture is one of the crucial atmospheric parameters in parameterization schemes and hence it important to study regional moisture variation with altitude at different temporal scales. ERA-Interim MERRA reanalysis data for 38 years (1980–2017) analyzed diurnal, seasonal, annual relative humidity (RH) altitudes over Indian land (IND), East Equatorial Ocean (EEIO), West (WEIO). Layer Averaged Re...

Abstract The aim of this study is to verify 2-meter temperature and mean sea level pressure forecasts from BSC-DREAM8B V2.0 model, which a short-term numerical forecasting model against observed data the Iraqi Meteorological Organization & Seismology constitution modelled (ERA-Interim) reanalysis European Centre for Medium Range Weather Forecasts (ECMWF) period 1-3 June 2012 four selected s...

While process technologists are obsessed to follow Moore’s curve down to nanoscale dimensions, design technologists are confronted with gigascale complexity. On the other hand, post-PC and post dotcom products require zero cost, zero energy yet software programmable novel system architectures to be sold in huge volumes and to be designed in exponentially decreasing time. How do we cope with the...

Tropospheric delay caused by spatiotemporal variations in pressure, temperature, and humidity in the lower troposphere remains one of the major challenges in Interferometric Synthetic Aperture Radar (InSAR) deformation monitoring applications. Acquiring an acceptable level of accuracy (millimeter-level) for small amplitude surface displacement is difficult without proper delay estimation. Tropo...