Results 31 to 40 of about 483 (224)

Recent advances in (soil moisture) triple collocation analysis

International Journal of Applied Earth Observation and Geoinformation, 2016
Abstract To date, triple collocation (TC) analysis is one of the most important methods for the global-scale evaluation of remotely sensed soil moisture data sets. In this study we review existing implementations of soil moisture TC analysis as well as investigations of the assumptions underlying the method.
A. Gruber, C.-H. Su, S. Zwieback, W. Crow, W. Dorigo, W. Wagner   +5 more
openaire   +1 more source

Evaluating the Uncertainty of Terrestrial Water Budget Components Over High Mountain Asia

Frontiers in Earth Science, 2019
This study explores the uncertainties in terrestrial water budget estimation over High Mountain Asia (HMA) using a suite of uncoupled land surface model (LSM) simulations.
Yeosang Yoon, Yeosang Yoon, Sujay V. Kumar, Barton A. Forman, Benjamin F. Zaitchik, Yonghwan Kwon, Yonghwan Kwon, Yun Qian, Summer Rupper, Viviana Maggioni, Paul Houser, Dalia Kirschbaum, Alexandra Richey, Anthony Arendt, David Mocko, David Mocko, Jossy Jacob, Jossy Jacob, Soumendra Bhanja, Soumendra Bhanja, Abhijit Mukherjee   +20 more
doaj   +1 more source

Quantifying Long-Term Land Surface and Root Zone Soil Moisture over Tibetan Plateau

Remote Sensing, 2020
It is crucial to monitor the dynamics of soil moisture over the Tibetan Plateau, while considering its important role in understanding the land-atmosphere interactions and their influences on climate systems (e.g., Eastern Asian Summer Monsoon). However,
Ruodan Zhuang, Yijian Zeng, Salvatore Manfreda, Zhongbo Su   +3 more
doaj   +1 more source

Cross-Examination of Similarity, Difference and Deficiency of Gauge, Radar and Satellite Precipitation Measuring Uncertainties for Extreme Events Using Conventional Metrics and Multiplicative Triple Collocation

Remote Sensing, 2020
Quantifying uncertainties of precipitation estimation, especially in extreme events, could benefit early warning of water-related hazards like flash floods and landslides. Rain gauges, weather radars, and satellites are three mainstream data sources used
Zhi Li, Mengye Chen, Shang Gao, Zhen Hong, Guoqiang Tang, Yixin Wen, Jonathan J. Gourley, Yang Hong   +7 more
doaj   +1 more source

A Hybrid Triple Collocation-Deep Learning Approach for Improving Soil Moisture Estimation from Satellite and Model-Based Data

Remote Sensing, 2022
Satellite retrieval and land surface models have become the mainstream methods for monitoring soil moisture (SM) over large regions; however, the uncertainty and coarse spatial resolution of these products limit their applications at the regional and ...
Wenting Ming, Xuan Ji, Mingda Zhang, Yungang Li, Chang Liu, Yinfei Wang, Jiqiu Li   +6 more
doaj   +1 more source

Characterization of precipitation product errors across the US using multiplicative Triple Collocation [PDF]

Hydrology and Earth System Sciences, 2015
Abstract. Validation of precipitation estimates from various products is a challenging problem, since the true precipitation is unknown. However, with the increased availability of precipitation estimates from a wide range of instruments (satellite, ground-based radar, and gauge), it is now possible to apply the Triple Collocation (TC) technique to ...
S. H. Alemohammad, K. A. McColl, A. G. Konings, D. Entekhabi, A. Stoffelen   +4 more
openaire   +6 more sources

Global-Scale Evaluation of XCO₂ Products from GOSAT, OCO-2 and CarbonTracker Using Direct Comparison and Triple Collocation Method

Remote Sensing, 2022
Triple collocation (TC) shows potential in estimating the errors of various geographical data in the absence of the truth. In this study, the TC techniques are first applied to evaluate the performances of multiple column-averaged dry air CO2 mole ...
Yuanyuan Chen, Jiefeng Cheng, Xiaodong Song, Shuo Liu, Yuan Sun, Dajiang Yu, Shuangxi Fang   +6 more
doaj   +1 more source

Proposing a new integration system: Tolerance Merged Collocation comparative to Modified and Scaled Triple Collocation and weighting scheme to integrate four indices

Geomatics, Natural Hazards & Risk
The absence of a global standard for drought assessment has led to inconsistencies in observational methods. This study explores recent advancements in merging techniques to enhance drought monitoring, develop more reliable indices, and introduce a ...
Zanib Badar, Jianyi Lin, Mohammed M. A. Almazah, Ijaz Hussain, Shreefa O. Hilali, A. Y. Al-Rezami, Abdulkareem M. Basheer   +6 more
doaj   +1 more source

Comparison of decadal water storage trends from common GRACE releases (RL05, RL06) using spatial diagnostics and a modified triple collocation approach

Journal of Hydrology X, 2021
GRACE (Gravity Recovery and Climate Experiment) and GRACE-FO (Follow-On) satellites have provided unique insights into the evolution of Terrestrial Water Storage (TWS) in space and time.
Emad Hasan, Aondover Tarhule
doaj   +1 more source

RIPK3 Orchestrates Scar‐Associated Macrophage Dysfunction to Drive Pulmonary Fibrosis

Advanced Science, EarlyView.
Beyond signaling cell death, RIPK3 emerges as a critical metabolic regulator in pulmonary fibrosis. This research reveals that RIPK3 promotes PI3K‐AKT signaling in scar‐associated macrophages to fuel polyamine synthesis, independent of its kinase activity.
Tao Yang, Xiao Li, Shuyue Lei, Qingqing Li, Yi Zhang, Zhizhen Hui, Jinjin Ren, Xuelian Yang, Xiaoqian Yang, Chunlan Feng, Yousheng Xu, Dongxin Zhao, Wei Tang   +12 more
wiley   +1 more source