CTAHR NEWS

No “Clouded” Judgments From Geostationary Satellite

Researchers explain how a new meteorological satellite can be an option to monitor land surfaces and climate change

  • 12 December 2019
  • Author: Frederika Bain
  • Number of views: 967
  • 0 Comments
No “Clouded” Judgments From Geostationary Satellite

Environmental scientists are always in search of new tools that can better characterize the Earth’s surface. Tomoaki Miura, in the Department of Natural Resources and Environmental Management, is lead author of a new study published in Scientific Reports that shows that Himawari-8, a new-generation geostationary satellite, was able to acquire cloud-free observations every 4 days and capture the seasonal changes of vegetation more accurately than before. 

The study, “Improved Characterisation of Vegetation and Land Surface Seasonal Dynamics in Central Japan with Himawari-8 Hypertemporal Data,” explains that satellite remote sensing has widely been used to monitor and characterize the spatial and temporal changes of the Earth’s vegetative cover. Satellites used in these analyses have usually been satellites which orbit from pole to pole and obtain only one to two images of the Earth per day. And even these images may often be less useful when frequently occurring clouds block the polar-orbiting satellites’ view of the land surface.

New-generation geostationary satellites present an opportunity to observe land surfaces in a more efficient manner. The Advanced Himawari Imager (AHI) sensor onboard Himawari-8, which is in geostationary orbit, can obtain multi-band color images over Japan every 10 minutes, increasing the chance of obtaining “cloud-free” observations. 

“Detailed vegetation seasonal information from the Himawari-8 geostationary satellite can be useful for many applications such as short-term drought monitoring and assessing the impact of heavy rainfall events,” said Tomoaki. It is also expected that AHI geostationary sensor data will contribute to improving understanding of vegetation dynamics and the effect of climate change.

Print

Giant Candy Canes

“Kō: Ethnobotanical Guide to Hawaiian Sugarcane Cultivars” gives a fascinating history

Ready, Set, Students

No in-class? No problem. ASAO is keeping CTAHR students in the loop

Helping 500,000+

The 2020 AUW Campaign targets Hawaiʻi residents who need assistance

A.I. in Ag

New grant opportunity is due October 5

Beyond Beginners

GoFarm Hawaiʻi consults on business plans, grant writing, and a whole lot more.

Vegan Leather

FDM students hope to establish sustainable manufacturing in Hawaiʻi

One Busy Man

Extension agent is helping livestock producers, near and far

$1.5M for Ag Ed

Grant designed to expand education for Native Hawaiians

Primed for Expansion

NIFA awards almost $1M to CTAHR’s Center for Tropical and Subtropical Aquaculture

Textbook Nutrition

Food Science and Human Nutrition’s latest edition adds an interactive layer

Welcome, Rock

Dr. Zhi-Yan Du joins MBBE

Men’s Wear

FDM professor is featured in a new book on masculine clothing

A Virtual Garden

The American Society for Horticultural Science’s online conference is a hit

RU AgCurious?

GoFarm Hawaiʻi Windward kicks off another farmer training

Giant Smiles

4-H contest gets keiki excited about agriculture

Safe You, Safe Campus

IT Services’ new app is mandatory for those coming to UH

Earth Mother

UH Center for Hawaiian Studies’ webinar is tonight at 7:00 p.m.

Not-Fun Spoofing

Beware of attackers impersonating CTAHR IT staff

Mission: Possible

Dean Comerford hosts a virtual Town Hall for Alumni and Friends

Conserving Kāhuli

Can structured decision-making save the Hawaiian Tree Snail?

Renaissance Agent

Molokaʻi Extension welcomes Marshall Joy

Positioned for Growth

Thesis explores a clonal rootstock program for cacao in Hawaiʻi

Bad Seed

USDA investigates packages of unsolicited seeds from China

Fire and Rain

SOEST and CTAHR document the first hurricane to cause both flooding and multiple fires.

Bringing UH to Cambodia

FCS joins a $1 million project to study socioeconomic and environmental shifts.

Sweet!

Learn about Native Hawaiian sweet potato varieties

Vegetable Garden Isle

Extension agents feed the hungry with the fruits of their research

Soil Rx

Extension offers conference on soil health

Mama Cows

Agent offers webinar on choosing heifers for cow/calf producers

Fashion Fights COVID

FDM alumna’s fashion-forward scrubs benefit Hawaiʻi Food Bank

12345678910Last