Author(s): Jardine K; Gimenez B; Negron-Juarez R; Sampaio I
Site ID: BR-Ma2
Site Name: Manaus - ZF2 K34
Variables: Leaf temperature
Date Range: Feb. 15, 2015 - March 16, 2017
Description: This data package contains raw leaf surface temperature data from the NGEE Tropics K34 tower site on a plateau near Manaus, Brazil, including automated and manually collected time series data on leaf surface temperature (thermocouples, IR radiometer, thermocamera). Leaf surface temperature (LST) was determined throughout diurnal periods using individual type T thermocouples (Omega Engineering) on 8 individual leaves of a single tree. Mature leaves at the same height and general area near the tower were selected. LST measurements were taken every 15 s and recorded on a field portable self-powered data logger (OM-CP-OCTTEMP-A, Omega Engineering). Measurements were stopped in the case of a storm or rain which can remove the attached thermocouple wires from the leaf due to large wind-driven branch movements. Included in the attached zip file are six folders: three with LST data in Excel and CSV file formats from both the K34 and B34 towers, one folder with data logger configuration programs that were used for data collection, a fifth folder with PDF files of manuals for instruments used and a final folder with two Excel metadata files. See dataset references for associated metadata package. This dataset replaces the leaf surface temperature data of two retired packages, http://dx.doi.org/10.15486/ngt/1507764 and http://dx.doi.org/10.15486/ngt/1507767
QA/QC: None
Methods Description: Leaf surface temperature (LST) is determined throughout diurnal periods using individual type T thermocouples (Omega Engineering) on 8 individual leaves of a single tree. Mature leaves at the same height and general area near the tower are selected and a single type T thermocouple wire is installed on the lower surface of the leaf using porous white tape. LST measurements every 15 s are recorded on a field portable self-powered data logger (OM-CP-OCTTEMP-A, Omega Engineering). The data is later downloaded from the datalogger to a computer. The measurments are stopped in the case of a storm or rain which can remove the attached thermocouple wires from the leaf due to large wind-driven branch movements.
Access Level: Public
Originating Institution(s): Lawrence Berkeley National Laboratory; National Institute for Amazon Research
Sponsor Organization(s): U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research
Contact: Jardine, Kolby - Lawrence Berkeley National Laboratory (kjjardine@lbl.gov)
Version: 1.0
Dataset Citation: Jardine K; Gimenez B; Negron-Juarez R; Sampaio I (2022): Leaf temperature raw data, 2015 - 2017, at Manaus, Brazil. 1.0. NGEE Tropics Data Collection. (dataset). http://dx.doi.org/10.15486/ngt/1561988
Acknowledgement: This material is based upon work supported as part of the Next Generation Ecosystem Experiments-Tropics (NGEE-Tropics) funded by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research through contract No. DE-AC02-05CH11231 to LBNL, as part of DOE's Terrestrial Ecosystem Science Program. Additional funding for this research was provided by the Brazilian Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). Logistical and scientific support is acknowledged by the Forest Management (MF), Climate and Environment (CLIAMB), and Large Scale Biosphere-Atmosphere (LBA) programs at the National Institute for Amazon Research (INPA).
Data Link: Download Dataset
http://dx.doi.org/10.15486/ngt/1556938
