Details:

Journal Title:
Machine Learning with Applications
Personal Author:
Kamangir, Hamid ; Collins, Waylon ; Tissot, Philippe ; King, Scott A. ; Dinh, Hue Thi Hong ; ... More +
Kamangir, Hamid ; Collins, Waylon ; Tissot, Philippe ; King, Scott A. ; Dinh, Hue Thi Hong ; Durham, Niall ; Rizzo, James Less -
NOAA Program & Office:
NWS (National Weather Service)
Description:
The reduction of visibility adversely affects land, marine, and air transportation. Thus, the ability to skillfully predict fog would provide utility. We predict fog visibility categories below 1600 m, 3200 m and 6400 m by post-processing numerical weather prediction model output and satellite-based sea surface temperature (SST) using a 3D-Convolutional Neural Network (3D-CNN). The target is an airport located on a barrier island adjacent to a major US port; measured visibility from this airport serves as a proxy for fog that develops over the port. The features chosen to calibrate and test the model originate from the North American Mesoscale Forecast System, with values of each feature organized on a 32 × 32 horizontal grid; the SSTs were obtained from the NASA Multiscale Ultra Resolution dataset. The input to the model is organized as a high dimensional cube containing 288 to 384 layers of 2D horizontal fields of meteorological variables (predictor maps). In this 3D-CNN (hereafter, FogNet), two parallel branches of feature extraction have been designed, one for spatially auto-correlated features (spatial-wise dense block and attention module), and the other for correlation between input variables (variable-wise dense block and attention mechanism.) To extract features representing processes occurring at different scales, a 3D multiscale dilated convolution is used. Data from 2009 to 2017 (2018 to 2020) are used to calibrate (test) the model. FogNet performance results for 6, 12− and 24−h lead times are compared to results from the High-Resolution Ensemble Forecast (HREF) system. FogNet outperformed HREF using 8 standard evaluation metrics.
Keywords:
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3D Convolutional Neural Network Attention Mechanism Deep Learning Dense Block Dilated Convolutions Fog Prediction
Source:
Machine Learning with Applications, 5(15)
DOI:
https://doi.org/10.1016/j.mlwa.2021.100038
Document Type:
Journal Article
Rights Information:
CC BY
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:554291bfe9c97a105e5769040630b1dfab74cdff213157e03ea1840577ebd400
Download URL:
https://repository.library.noaa.gov/view/noaa/31512/noaa_31512_DS1.pdf
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