Eileen H. Helmer

发表

Predictions of Tropical Forest Biomass and Biomass Growth Based on Stand Height or Canopy Area Are Improved by Landsat-Scale Phenology across Puerto Rico and the U.S. Virgin Islands

Michael A. Lefsky, Xiaolin Zhu, David Gwenzi, 2017, Remote. Sens..

Biomass accumulation rates of Amazonian secondary forest and biomass of old-growth forests from Landsat time series and the Geoscience Laser Altimeter System

Michael A. Lefsky, Eileen H. Helmer, Dar A. Roberts, 2009 .

A flexible spatiotemporal method for fusing satellite images with different resolutions

Michael A. Lefsky, Feng Gao, Jin Chen, 2016 .

An automatic method for screening clouds and cloud shadows in optical satellite image time series in cloudy regions

Xiaolin Zhu, Eileen H. Helmer, Xiaolin Zhu, 2018, Remote Sensing of Environment.

Mapping land cover and estimating forest structure using satellite imagery and coarse resolution lidar in the Virgin Islands

Michael A. Lefsky, Eileen H. Helmer, Todd A. Kennaway, 2008 .

Tropical Deforestation and Recolonization by Exotic and Native Trees: Spatial Patterns of Tropical Forest Biomass, Functional Groups, and Species Counts and Links to Stand Age, Geoclimate, and Sustainability Goals

Michael A. Lefsky, Eileen H. Helmer, Humfredo Marcano-Vega, 2018, Remote. Sens..

The damage of urban vegetation from super typhoon is associated with landscape factors: Evidence from Sentinel-2 imagery

Xiaolin Zhu, Xuehong Chen, Eileen H. Helmer, 2021, Int. J. Appl. Earth Obs. Geoinformation.

Characterization of Dry-Season Phenology in Tropical Forests by Reconstructing Cloud-Free Landsat Time Series

Xiaolin Zhu, David Gwenzi, Eileen H. Helmer, 2021, Remote. Sens..

Factors influencing spatial pattern in tropical forest clearance and stand age : Implications for carbon storage and species diversity

Eileen H. Helmer, Ariel E. Lugo, Thomas J. Brandeis, 2008 .

The Forest Types and Ages Cleared for Land Development in Puerto Rico

Eileen H. Helmer, E. Helmer, T. Kennaway, 2007 .

Controls on fallen leaf chemistry and forest floor element masses in native and novel forests across a tropical island

Eileen H. Helmer, Ariel E. Lugo, Thomas J. Brandeis, 2014 .

Root biomass allocation in the world's upland forests

Eileen H. Helmer, Sandra Brown, Sandra A. Brown, 1997, Oecologia.

Case Study: Geographic Distribution and Level of Novelty of Puerto Rican Forests

Eileen H. Helmer, Ariel E. Lugo, Thomas J. Brandeis, 2013 .

Land Cover and Forest Formation Distributions for St. Kitts, Nevis, St. Eustatius, Grenada and Barbados from Decision Tree Classification of Cloud-Cleared Satellite Imagery

Eileen H. Helmer, Humfredo Marcano-Vega, Larry L. Tieszen, 2008 .

An Improved Flexible Spatiotemporal DAta Fusion (IFSDAF) method for producing high spatiotemporal resolution normalized difference vegetation index time series

Meng Liu, Xiaolin Zhu, Xuehong Chen, 2019, Remote Sensing of Environment.

Emerging forests on abandoned land: Puerto Rico’s new forests

Eileen H. Helmer, Ariel E. Lugo, A. Lugo, 2004 .

Diversity and composition of tropical secondary forests recovering from large-scale clearing: results from the 1990 inventory in Puerto Rico

Eileen H. Helmer, E. Helmer, J.Danilo Chinea, 2003 .

Climate shapes the novel plant communities that form after deforestation in Puerto Rico and the U.S. Virgin Islands

Eileen H. Helmer, Humfredo Marcano-Vega, Ariel E. Lugo, 2009 .

Detailed maps of tropical forest types are within reach: Forest tree communities for Trinidad and Tobago mapped with multiseason Landsat and multiseason fine-resolution imagery

Eileen H. Helmer, Thomas S. Ruzycki, E. Helmer, 2012 .

Summary for policymakers of the regional assessment report on biodiversity and ecosystem services for the Americas of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services

Natalia Valderrama, Eileen H. Helmer, Jeannine Cavender-Bares, 2018 .

Chapter 4: Direct and indirect drivers of change in biodiversity and nature’s contributions to people

Eileen H. Helmer, Julie L. Lockwood, Forest Isbell, 2018 .

The status of Puerto Rico's forests, 2003

Eileen H. Helmer, Sonja N. Oswalt, Thomas J. Brandeis, 2007 .

Mapping the climate of Puerto Rico, Vieques and Culebra

Eileen H. Helmer, Maya Quiñones, Christopher Daly, 2003 .

Mapping the Forest Type and Land Cover of Puerto Rico, a Component of the Caribbean Biodiversity Hotspot

Eileen H. Helmer, Río Piedras, E. Helmer, 2002 .

Gradient Analysis of Biomass in Costa Rica and a First Estimate of Countrywide Emissions of Greenhouse Gases from Biomass Burning

Eileen H. Helmer, Sandra Brown, Sandra A. Brown, 2000 .

Puerto Rican karst - a vital resource.

Eileen H. Helmer, Donald A. McFarlane, John R. Thomlinson, 2001 .