Soil moisture content estimation based on Sentinel-1 SAR imagery using an artificial neural network and hydrological components

J Chung, Y Lee, J Kim, C Jung, S Kim - Remote Sensing, 2022 - mdpi.com
This study estimates soil moisture content (SMC) using Sentinel-1A/B C-band synthetic
aperture radar (SAR) images and an artificial neural network (ANN) over a 40× 50-km2 area …

A real-time online drought broadcast system for monitoring soil moisture index

WH Nam, JY Choi, SH Yoo, BA Engel - KSCE Journal of Civil Engineering, 2012 - Springer
Drought is a complex phenomenon that varies in intensity over space and time. Due to the
spatial and temporal variabilities of drought, better tools are required to assess its severity …

Agricultural drought risk assessment using reservoir drought index

WH Nam, JY Choi, MW Jang… - Journal of the Korean …, 2013 - koreascience.kr
Drought risk assessment is usually performed qualitatively and quantitatively depending on
the definition a drought. The meteorological drought indices have a limit of not being able to …

[PDF][PDF] Projection of consumptive use and irrigation water for major upland crops using soil moisture model under climate change

WH Nam, EM Hong, MW Jang… - Journal of the Korean …, 2014 - koreascience.kr
The impacts of climate change on upland crops is great significance for water resource
planning, estimating crop water demand and irrigation scheduling. The objective of this …

Climate change impacts on agricultural drought for major upland crops using soil moisture model-Focused on the Jeollanam-do

EM Hong, WH Nam, JY Choi - Journal of the Korean Society of …, 2015 - koreascience.kr
Estimating water requirements for upland crops are characterized by standing soil moisture
condition during the entire crop growth period. However, scarce rainfall and intermittent dry …

Assessment of upland drought using soil moisture based on the water balance analysis

MG Jeon, WH Nam, MH Yang, YS Mun… - Journal of The …, 2021 - koreascience.kr
Soil moisture plays a critical role in hydrological processes, land-atmosphere interactions
and climate variability. It can limit vegetation growth as well as infiltration of rainfall and …

[PDF][PDF] 基于时空融合技术的高精度遥感蒸散计算

戴肖杰, 范晓梅, 闵彤 - 科学技术与工程, 2023 - stae.com.cn
摘要在利用遥感数据进行蒸散计算时, 常因云雨污染和单一传感器限制, 导致影像数据缺失严重,
特别是在一些景观破碎化程度高的地区, 较难获取高时空分辨率的蒸散序列 …

[PDF][PDF] Korean model for estimating soil available water content of soybean cultivation area with integrated soil, meteorology, and crop data

S Hwang, J Ok, B Oh, J Son, SI Lee, S Hur… - 한국토양비료 …, 2022 - researchgate.net
This study was carried out to develop a model for a upland drought forecasting system using
soil available water contents (SAWC). The SAWC expressed as a percentage of the current …

Analysis of soil moisture characteristics in nut pine forest about seasons and soil layers

EM Hong, JY Choi, SH Yoo… - Journal of the korean …, 2012 - koreascience.kr
Soil moisture plays a pivotal role in hydrological processes, especially in the forest which
covers more than 64% of the national land. Soil moisture was monitored to analyze soil …

[PDF][PDF] Analysis of soil moisture recession characteristics in conifer forest

EM Hong, JY Choi, WH Nam… - Journal of the korean …, 2011 - koreascience.kr
Forest area covers 64% of the national land of Korea and the forest plays a pivotal role in the
hydrological process such as flood, drought, runoff, infiltration, evapotranspiration, etc. In this …