DEC 19, 2018 2:59 PM PST

Deep Learning Improves Cloud Detection Methods

WRITTEN BY: Nouran Amin

To understand the workings of earth systems, atmospheric scientists often search data images for the clouds as part of their research. However, the manual work involved in the labeling of data images is time-consuming and so more than often scientist rely heavily on automatic processing techniques based on cloud detection algorithms. Unfortunately, the output generated by these algorithms are not always as exact as the researchers desire it to be.

Clouds come in all shapes and sizes. Now, a model based on a subset of machine learning known as ‘Deep Learning’ may help detect the finer details in cloud data.

Credit: Adriel Kloppenburg on Unsplash via Pacific Northwest National Laboratory

"The current algorithm identifies the clouds using broad brushstrokes," says co-principal investigator on the project and Earth scientist, Donna Flynn. "We need to more accurately determine the cloud's true top and base and to distinguish multiple cloud layers."

To combat such a hurdle, scientists at the Department of Energy's Pacific Northwest National Laboratory have opted to try a subset of machine learning known as deep learning in hopes team to find better ways of identifying clouds in LIDAR data (Light Detection and Ranging) instead of the present physics-based algorithms.

"An advantage of the deep learning model is transfer learning," says Erol Cromwell, a computational scientist and co-principal investigator at Pacific Northwest National Laboratory. "We can train the model further with data from Oliktok to make its performance more robust."

The researchers found out that the new deep learning model gave them more accurate answers in just a fraction of the time. During training and testing of the model, they first started labeling LIDAR data images. The model was found to learn through self-feedback by improving through each cycle and adjusting its calculations accordingly by comparing its own work against results generated by manual labor.

Learn more on how deep learning tackles cloud detection:

"Reducing sources of uncertainty in global model predictions is especially important to the atmospheric science community," states Flynn. "With its improved precision, deep learning increases our confidence…Plus, it gives us more time to be outside looking at real clouds!"

Source: Pacific Northwest National Laboratory

About the Author
  • Nouran earned her BS and MS in Biology at IUPUI and currently shares her love of science by teaching. She enjoys writing on various topics as well including science & medicine, global health, and conservation biology. She hopes through her writing she can make science more engaging and communicable to the general public.
You May Also Like
APR 26, 2020
Space & Astronomy
NASA Balances the Perseverance Rover's Chassis
APR 26, 2020
NASA Balances the Perseverance Rover's Chassis
Engineers at NASA’s Kennedy Space Center in Cape Canaveral, Florida has been working tirelessly over the past seve ...
MAY 24, 2020
Space & Astronomy
NASA Gives Green Light for Historic Crewed SpaceX Launch
MAY 24, 2020
NASA Gives Green Light for Historic Crewed SpaceX Launch
It’s no secret that NASA is working closely with private contractors like Boeing and SpaceX as a part of its Comme ...
JUN 05, 2020
Technology
Nature-Inspired Nanotech
JUN 05, 2020
Nature-Inspired Nanotech
Wouldn’t it be nice to have natural-looking images from digital displays? Apparently, yes! A study at the Universi ...
JUN 24, 2020
Chemistry & Physics
How to Enable Computers to Solve Increasingly Complex Problems? Make Them "Think" Like a Metal
JUN 24, 2020
How to Enable Computers to Solve Increasingly Complex Problems? Make Them "Think" Like a Metal
In metal works, the term annealing refers to a treatment with heat that increases the elasticity of a metal material. Si ...
JUL 06, 2020
Space & Astronomy
New Technology Can Detect Fast Radio Bursts
JUL 06, 2020
New Technology Can Detect Fast Radio Bursts
Fast radio bursts are intense pulses of energy that come from light years away, popping fir a few milliseconds before di ...
JUL 08, 2020
Technology
Advancing Assistive Technology for Quadriplegics
JUL 08, 2020
Advancing Assistive Technology for Quadriplegics
According to a clinical trial, recent assistive technology can enable individuals to power their wheelchair with their t ...
Loading Comments...