2021 SpecNet Community Meeting

SpecNet Meeting Complete

Thank you for joining us at the 2021 SpecNet Community Meeting! We were pleased to host 75 participants, and look forward to your continued participation in future SpecNet activities.

2021 SpecNet Community Meeting Information

2021 SpecNet Community Meeting

Thank you for joining our virtual meeting!

Date: June 25

Time: 12:00 to 4:00 PM EDT

About Specnet

SpecNet is a voluntary collaboration of investigators around the world who are combining proximal remote sensing approaches with flux and other field measurements. Typically, this involves field optical sampling that matches the spatial and temporal scale of flux measurements - providing a proxy measure of vegetation structural, physiological, and phenological properties, all of which provide indicators of ecosystem composition, function, and biosphere–atmosphere gas exchange. Ground-based optical sampling is particularly important in validating these relationships and adds to the value of field sampling networks and satellite/aircraft remote sensing studies.

Meeting Goals

The goals of this year’s SpecNet Community Meeting are to provide opportunities for investigators to describe their work, present results, discuss new approaches, encourage new investigators, develop network-wide studies, and to advise SpecNet on how to advance these activities.



Start Time EDT




12:00 PM


Fred Huemmrich


Lecture session 1

Chair: Fred Huemmrich


12:05 PM


John Gamon

Introduction to SpecNet

12:25 PM

Lecture 1

Tommaso Julitta

Towards a field spectrometer multipurpose network

12:45 PM



Flash talks 1

Chair: Troy Magney


12:50 PM

Flash talk 1

Ben Poulter

Introduction to NASA SBG mission

12:57 PM

Flash talk 2

Loris Vescovo

Monte Bondone SPECNET grassland site

1:04 PM

Flash talk 3

Jon Atherton

Proximal and remote sensing data points to the European 2018 drought being a 2-year event

1:11 PM

Flash talk 4

Paul Naethe

In-field calibration and validation of airborne reflectance

1:18 PM

Flash talk 5

Sofia Cerasoli

Spectral Reflectance Sensors (SRS - NDVI and PRI) in a cork oak woodland

1:25 PM

Flash talk 6

Shari Van Wittenberghe

The underlying spectral behaviour of PRI related to quickly regulated energy quenching in the antenna

1:32 PM

Flash talk 7

Dominic Fawcett

Comparison of surface reflectance from drone-mounted multispectral sensors with field spectroscopy along a dryland ecosystem transect in (Jornada, New Mexico, USA

1:39 PM

Flash talk 8

Andrew C Hill

St Jones Reserve coastal salt marsh study site in Dover, Delaware, USA

1:46 PM



Lecture session 2

Chair: Yuki Hamada


2:01 PM

Lecture 2

Adrian Rocha

Radiation Sensor NDVI

2:21 PM

Lecture 3

Zoe Pierrat

Using tower-based measurements of solar-induced chlorophyll fluorescence (SIF) and vegetation indices in evergreen ecosystems

2:41 PM



Flash talks 2

Chair: Troy Magney


2:46 PM

Flash talk 9

Ying Sun

Concurrent hyperspectral and SIF measurements from both tower and UAV systems in a corn field in upstate NY state.

2:53 PM

Flash talk 10

Mostafa Javadian

Thermal Unmanned Aircraft Systems (UAS) measures Tc of previously inaccessible tall trees diurnally

3:00 PM

Flash talk 11

William K Smith

The relationship between remotely sensed proxies and GPP for three dryland sites: Kendall grassland (US-WKG), Santa Rita Mesquite savanna (US-SRM), and the Bigelow mixed conifer forest (US-MtB) sites

3:07 PM

Flash talk 12

Adam Young

Deriving and comparing broadband NDVI to PhenoCam greenness for quantifying vegetation phenology

3:14 PM

Flash talk 13

Rui Cheng

Canopy reflectance associated with GPP seasonality in evergreen forests

3:21 PM

Flash talk 14

Sandra M Duran

Assessing the effect of plant biodiversity on carbon at water fluxes in alpine meadows using spectral reflectance from leaf, canopy and airborne.

3:28 PM

Flash talk 15

Will Woodgate

Multi-angular proximal remote sensing sensing systems deployed at the Tumbarumba flux tower tall forest site

3:35 PM




Chair: Loren Albert


3:40 PM



Topic: How best can Specnet advance the science of proximal remote sensing?

4:05 PM



60 +

Participating fieldsites

248 +


Since 2012

As a non-profit organization

$15,000 +

Grants and equipment grants