Multivariate Spatial Data Fusion for Very Large Remote Sensing Datasets

Unmanned Aerial System (UAS) is an efficient tool to bridge the gap between high expensive satellite remote sensing, manned aerial surveys, and labors time consuming conventional fieldwork techniques of data collection. UAS can provide spatial data at very fine (up to a few mm) and desirable temporal resolution. Several studies have used vegetation indices (VIs) calculated from UAS based on optical- and MSS-datasets to model the parameters of biophysical units of the Earth surface. They have used different techniques of estimations, predictions and classifications. However, these results vary according to used datasets and techniques and appear very site-specific. These existing approaches aren’t optimal and applicable for all cases and need to be tested according to sensor category and different geophysical environmental conditions for global applications. UAS remote sensing is a challenging and interesting area of research for sustainable land management.

Download Full-text

Deep learning based remote sensing technique for environmental parameter retrieval and data fusion from physical models

Arabian Journal of Geosciences ◽

10.1007/s12517-021-07577-3 ◽

2021 ◽

Vol 14 (13) ◽

Author(s):

Ratna Kumari Vemuri ◽

Pundru Chandra Shaker Reddy ◽

B S Puneeth Kumar ◽

Jayavadivel Ravi ◽

Sudhir Sharma ◽

...

Keyword(s):

Remote Sensing ◽

Deep Learning ◽

Data Fusion ◽

Environmental Parameter ◽

Physical Models ◽

Remote Sensing Technique ◽

Parameter Retrieval

Download Full-text

Addressing Reliability of Multimodal Remote Sensing to Enhance Multisensor Data Fusion and Transfer Learning

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium ◽

10.1109/igarss39084.2020.9323681 ◽

2020 ◽

Author(s):

Andrea Marinoni ◽

Saloua Chlaily ◽

Christian Jutten

Keyword(s):

Remote Sensing ◽

Data Fusion ◽

Transfer Learning ◽

Multisensor Data Fusion ◽

Multisensor Data

Download Full-text

Phenological Analysis of Sub-Alpine Forest on Jeju Island, South Korea, Using Data Fusion of Landsat and MODIS Products

Forests ◽

10.3390/f12030286 ◽

2021 ◽

Vol 12 (3) ◽

pp. 286

Author(s):

Sang-Jin Park ◽

Seung-Gyu Jeong ◽

Yong Park ◽

Sang-hyuk Kim ◽

Dong-kun Lee ◽

...

Keyword(s):

Climate Change ◽

Remote Sensing ◽

Data Fusion ◽

Vegetation Index ◽

Normalized Difference Vegetation Index ◽

Fusion Model ◽

Fusion Algorithm ◽

Study Region ◽

Modis Imagery ◽

Increasing Temperature

Climate change poses a disproportionate risk to alpine ecosystems. Effective monitoring of forest phenological responses to climate change is critical for predicting and managing threats to alpine populations. Remote sensing can be used to monitor forest communities in dynamic landscapes for responses to climate change at the species level. Spatiotemporal fusion technology using remote sensing images is an effective way of detecting gradual phenological changes over time and seasonal responses to climate change. The spatial and temporal adaptive reflectance fusion model (STARFM) is a widely used data fusion algorithm for Landsat and MODIS imagery. This study aims to identify forest phenological characteristics and changes at the species–community level by fusing spatiotemporal data from Landsat and MODIS imagery. We fused 18 images from March to November for 2000, 2010, and 2019. (The resulting STARFM-fused images exhibited accuracies of RMSE = 0.0402 and R2 = 0.795. We found that the normalized difference vegetation index (NDVI) value increased with time, which suggests that increasing temperature due to climate change has affected the start of the growth season in the study region. From this study, we found that increasing temperature affects the phenology of these regions, and forest management strategies like monitoring phenology using remote sensing technique should evaluate the effects of climate change.

Download Full-text