Results 31 to 40 of about 7,966 (257)

An Analysis of Long-Term Rainfall Trends and Variability in the Uttarakhand Himalaya Using Google Earth Engine

open access: yesRemote Sensing, 2020
This paper analyses the spatio-temporal trends and variability in annual, seasonal, and monthly rainfall with corresponding rainy days in Bhilangana river basin, Uttarakhand Himalaya, based on stations and two gridded products.
Abhishek Banerjee   +5 more
doaj   +1 more source

A Spatio-Temporal Analysis of Rainfall and Drought Monitoring in the Tharparkar Region of Pakistan

open access: yesRemote Sensing, 2020
The Tharpakar desert region of Pakistan supports a population approaching two million, dependent on rain-fed agriculture as the main livelihood. The almost doubling of population in the last two decades, coupled with low and variable rainfall, makes this
Muhammad Usman, Janet E. Nichol
doaj   +1 more source

Evaluation of remotely sensed precipitation product in a hydrological model of the Bednja watershed

open access: yesGrađevinar, 2021
In this paper, a statistical and spatial analysis of precipitation for the period 2000-2018 for the Bednja basin was performed, were the measured data from meteorological and/or rainfall stations of Croatian Meteorological and Hydrological Service (DHMZ)
Karlo Leskovar   +2 more
doaj   +1 more source

Chirp transforms and Chirp series

open access: yesJournal of Mathematical Analysis and Applications, 2011
The theory of non harmonic Fourier series was originated by Paley and Wiener, and more recently, in a series of papers, many questions were studied. The authors introduce an integral version of the non-harmonic Fourier series, called Chirp transform.
Ren, Guangbin   +3 more
openaire   +2 more sources

Chirp excitation [PDF]

open access: yesJournal of Magnetic Resonance, 2017
The paper describes the design of broadband chirp excitation pulses in NMR. We first develop a three stage model for understanding chirp excitation in NMR. We then show how a chirp $π$ pulse can be used to refocus the phase of the chirp excitation pulse. The resulting magnetization still has some phase dispersion in it. We show how a combination of two
openaire   +3 more sources

Evaluation of satellite-based (CHIRPS and GPM) and reanalysis (ERA5-Land) precipitation estimates over Eritrea

open access: yesMeteorologische Zeitschrift, 2022
Availability of long-term and spatially high-resolution precipitation data is important for sustainable water resource management, drought monitoring and hydrological analysis.
Mussie Fessehaye   +2 more
doaj   +1 more source

Chirp mixing [PDF]

open access: yesChemical Physics Letters, 2018
15 pages, 7 ...
openaire   +2 more sources

Evaluation of Remotely Sensed and Interpolated Environmental Datasets for Vector-Borne Disease Monitoring Using In Situ Observations over the Amhara Region, Ethiopia

open access: yesSensors, 2020
Despite the sparse distribution of meteorological stations and issues with missing data, vector-borne disease studies in Ethiopia have been commonly conducted based on the relationships between these diseases and ground-based in situ measurements of ...
Woubet G. Alemu, Michael C. Wimberly
doaj   +1 more source

VALIDASI CURAH HUJAN HARIAN CHIRPS PRECIPITATION SATELLITE PRODUCT DI PROVINSI KALIMANTAN BARAT

open access: yesJurnal Ilmiah Rekayasa Pertanian dan Biosistem, 2023
Data curah hujan produk satelit dapat digunakan sebagai alternatif keterbatasan pengukuran curah hujan menggunakan penakar hujan. Akurasi data hujan satelit sangat bervariasi antar wilayah karena faktor lingkungan yang beragam, sehingga validasi hujan ...
Joko Suryanto, Amprin, Anisum
doaj   +1 more source

Use of chirps in medical ultrasound imaging [PDF]

open access: yes, 2012
A "chirp" is a frequency modulated signal widely used in ultrasound imaging to increase the signal-to-noise ratio and penetration depth. In medical ultrasound imaging, resolution and penetration are two major criteria that are inversely proportional ...
Harput, Sevan
core   +6 more sources

Home - About - Disclaimer - Privacy