Estimation and validation of land surface broadband albedos and leaf area index from EO-1 ALI data. - Shunlin Liang; Hongliang Fang; Monisha Kaul; Tom G. van Niel; Tim R. McVicar; Jay S. Pearlman; Charles L. Walthall; Craig S. T. Daughtry; Karl Fred Huemmrich (IEEE Trans. Geosci. Remote. Sens., 2003)

Direct satellite inference of ecosystem light use efficiency for carbon exchange using MODIS on Terra and Aqua. - Elizabeth M. Middleton; Guillaume Drolet; Karl Fred Huemmrich; Forrest G. Hall; Robert G. Knox; Andy Black; Alan Barr; Alexei I. Lyapustin; Janette C. Gervin; Hank Margolis (IGARSS, 2004)

Retrieval of Quantitative and Qualitative Information about Plant Pigment Systems from High Resolution Spectroscopy. - Susan L. Ustin; Gregory Asner; John A. Gamon; Karl Fred Huemmrich; Stephane Jacquemoud; Michael E. Schaepman; Pablo J. Zarco-Tejada (IGARSS, 2006)

A Landsat surface reflectance dataset for North America, 1990-2000. - Jeffrey G. Masek; Eric F. Vermote; Nazmi El Saleous; Robert E. Wolfe; Forrest G. Hall; Karl Fred Huemmrich; Feng Gao 009; Jonathan Kutler; Teng-Kui Lim (IEEE Geosci. Remote. Sens. Lett., 2006)

MODIS leaf area index products: from validation to algorithm improvement. - Wenze Yang; Bin Tan; Dong Huang 002; Miina Rautiainen; Nikolay V. Shabanov; Yujie Wang 001; Jeffrey L. Privette; Karl Fred Huemmrich; Rasmus Fensholt; Inge Sandholt; Marie Weiss; Douglas E. Ahl; et al. (IEEE Trans. Geosci. Remote. Sens., 2006)

Foliar Bio-Physical and Spectral Properties Associated with Light Environment in a Mature Poplar Stand. - Petya K. E. Campbell; Elizabeth M. Middleton; Lawrence A. Corp; Yen-Ben Cheng; Karl Fred Huemmrich; Geoffrey G. Parker 002 (IGARSS (2), 2008)

Comparisons between in Situ Anisotropic Reflectance Measurements and Simulations for Vegetation Canopies: Validation and Sensitivity Analysis. - Yen-Ben Cheng; Lawrence A. Corp; Elizabeth M. Middleton; Karl Fred Huemmrich; Qingyuan Zhang; Petya K. E. Campbell; Geoffrey G. Parker 002 (IGARSS (3), 2008)

Impact of Spectral Resolution on Solar Induced Fluorescence and Reflectance Indices for Monitoring Vegetation. - Lawrence A. Corp; Elizabeth M. Middleton; Yen-Ben Cheng; Petya K. E. Campbell; Karl Fred Huemmrich (IGARSS (4), 2008)

Using Reflectance Measurements to Determine Light use Efficiency in Corn. - Karl Fred Huemmrich; Lawrence A. Corp; Andrew L. Russ; Elizabeth M. Middleton; William P. Kustas; John H. Prueger; Yen-Ben Cheng (IGARSS (4), 2008)

Relating a Spectral Index from MODIS and Tower-Based Measurements to Ecosystem Light Use Efficiency for a Fluxnet-Canada Coniferous Forest. - Elizabeth M. Middleton; Yen-Ben Cheng; Thomas Hilker; Nicholas C. Coops; Karl Fred Huemmrich; Thomas Andrew Black; Praveena Krishnan (IGARSS (2), 2008)

Fusion: A fully ultraportable system for imaging objects in nature. - Lawrence A. Corp; Bruce D. Cook; Elizabeth M. Middleton; Yen-Ben Cheng; Karl Fred Huemmrich; Petya K. E. Campbell (IGARSS, 2010)

Forecasting corn yield with imaging spectroscopy. - Lawrence A. Corp; Elizabeth M. Middleton; Craig S. T. Daughtry; Andrew L. Russ; Petya K. E. Campbell; Karl Fred Huemmrich; Yen-Ben Cheng (IGARSS, 2010)

Using EO-1 Hyperion images to prototype environmental products for HyspIRI. - Elizabeth M. Middleton; Petya K. E. Campbell; Stephen G. Ungar; Lawrence Ong; Qingyuan Zhang; Karl Fred Huemmrich; Daniel J. Mandl; Stuart Frye (IGARSS, 2010)

Utilizing in situ directional hyperspectral measurements to validate bio-indicator simulations for a corn crop canopy. - Yen-Ben Cheng; Elizabeth M. Middleton; Karl Fred Huemmrich; Qingyuan Zhang; Petya K. E. Campbell; Lawrence A. Corp; Andrew L. Russ; William P. Kustas (Ecol. Informatics, 2010)

Applications of the BIOPHYS Algorithm for Physically-Based Retrieval of Biophysical, Structural and Forest Disturbance Information. - Derek R. Peddle; Karl Fred Huemmrich; Forrest G. Hall; Jeffrey G. Masek; Scott A. Soenen; Chris D. Jackson (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2011)

Canopy level Chlorophyll Fluorescence and the PRI in a cornfield. - Elizabeth M. Middleton; Yen-Ben Cheng; Lawrence A. Corp; Petya K. E. Campbell; Karl Fred Huemmrich; Qingyuan Zhang; William P. Kustas (IGARSS, 2012)

Integrating Solar Induced Fluorescence and the Photochemical Reflectance Index for Estimating Gross Primary Production in a Cornfield. - Yen-Ben Cheng; Elizabeth M. Middleton; Qingyuan Zhang; Karl Fred Huemmrich; Petya K. E. Campbell; Lawrence A. Corp; Bruce D. Cook; William P. Kustas; Craig S. T. Daughtry (Remote. Sens., 2013)

EO-1 Hyperion Reflectance Time Series at Calibration and Validation Sites: Stability and Sensitivity to Seasonal Dynamics. - Petya K. E. Campbell; Elizabeth M. Middleton; Kurt J. Thome; Raymond F. Kokaly; Karl Fred Huemmrich; David Lagomasino; Kimberly A. Novick; Nathaniel A. Brunsell (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2013)

Arctic Tundra Vegetation Functional Types Based on Photosynthetic Physiology and Optical Properties. - Karl Fred Huemmrich; John A. Gamon; Craig E. Tweedie; Petya K. E. Campbell; David R. Landis; Elizabeth M. Middleton (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2013)

Selection of Hyperspectral Narrowbands (HNBs) and Composition of Hyperspectral Twoband Vegetation Indices (HVIs) for Biophysical Characterization and Discrimination of Crop Types Using Field Reflectance and Hyperion/EO-1 Data. - Prasad S. Thenkabail; Isabella Mariotto; Murali K. Gumma; Elizabeth M. Middleton; David R. Landis; Karl Fred Huemmrich (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2013)

Novel leaf-level measurements of chlorophyll fluorescence for photosynthetic efficiency. - Elizabeth M. Middleton; Tommaso Julitta; Petya K. E. Campbell; Karl Fred Huemmrich; Anke Schickling; Micol Rossini; Sergio Cogliati; David R. Landis; Luis Alonso 002 (IGARSS, 2015)

Hyperion: The first global orbital spectrometer, earth observing-1 (EO-1) satellite (2000-2017). - Elizabeth M. Middleton; Petya K. E. Campbell; Lawrence Ong; David R. Landis; Qingyuan Zhang; Christopher S. R. Neigh; Karl Fred Huemmrich; Stephen G. Ungar; Daniel J. Mandl; Stuart W. Frye; Vuong Ly; Patrice Cappelaere; et al. (IGARSS, 2017)

Oxygen transmittance correction for solar-induced chlorophyll fluorescence measured on proximal sensing: Application to the NASA-GSFC fusion tower. - Neus Sabater; Elizabeth M. Middleton; Zbynek Malenovský; Luis Alonso 002; Jochem Verrelst; Karl Fred Huemmrich; Petya K. E. Campbell; William P. Kustas; Jorge Vicent 001; Shari Van Wittenberghe; José F. Moreno (IGARSS, 2017)

EO-1 Data Quality and Sensor Stability with Changing Orbital Precession at the End of a 16 Year Mission. - Shannon Franks; Christopher S. R. Neigh; Petya K. E. Campbell; Guoqing Sun; Tian Yao; Qingyuan Zhang; Karl Fred Huemmrich; Elizabeth M. Middleton; Stephen G. Ungar; Stuart W. Frye (Remote. Sens., 2017)

The 2013 FLEX - US Airborne Campaign at the Parker Tract Loblolly Pine Plantation in North Carolina, USA. - Elizabeth M. Middleton; Uwe Rascher; Lawrence A. Corp; Karl Fred Huemmrich; Bruce D. Cook; Asko Noormets; Anke Schickling; Francisco Pinto; Luis Alonso 002; Alexander Damm; Luis Guanter; Roberto Colombo; et al. (Remote. Sens., 2017)

Detecting Inter-Annual Variations in the Phenology of Evergreen Conifers Using Long-Term MODIS Vegetation Index Time Series. - Laura Ulsig; Caroline J. Nichol; Karl Fred Huemmrich; David R. Landis; Elizabeth M. Middleton; Alexei I. Lyapustin; Ivan Mammarella; Janne Levula; Albert Porcar-Castell (Remote. Sens., 2017)

ISS as a Platform for Optical Remote Sensing of Ecosystem Carbon Fluxes: A Case Study Using HICO. - Karl Fred Huemmrich; Petya K. E. Campbell; Bo-Cai Gao; Larry B. Flanagan; Michael Goulden (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Ground-Based Measurements and Validation Protocols for Flex. - Elizabeth M. Middleton; Karl Fred Huemmrich; Petya K. E. Campbell; Oinsyuan Zhany; David R. Landis; Cris Garrish; Lawrence Ong; Craig Daughiry (IGARSS, 2018)

Diurnal and Seasonal Variations in Chlorophyll Fluorescence Associated with Photosynthesis at Leaf and Canopy Scales. - Petya K. E. Campbell; Karl Fred Huemmrich; Elizabeth M. Middleton; Lauren A. Ward; Tommaso Julitta; Craig S. T. Daughtry; Andreas Burkart; Andrew L. Russ; William P. Kustas (Remote. Sens., 2019)

Determining Terrestrial Ecosystem Gross Primary Productivity From PACE OCI. - Karl Fred Huemmrich; Skye Caplan; John A. Gamon; Petya K. E. Campbell (IEEE Geosci. Remote. Sens. Lett., 2025)