Results 1 to 10 of about 14,065 (269)

Quantifying Northern High Latitude Gross Primary Productivity (GPP) Using Carbonyl Sulfide (OCS). [PDF]

Global Biogeochem Cycles, 2022
The northern high latitude (NHL, 40°N to 90°N) is where the second peak region of gross primary productivity (GPP) other than the tropics. The summer NHL GPP is about 80% of the tropical peak, but both regions are still highly uncertain (Norton et al ...
Kuai L, Parazoo NC, Shi M, Miller CE, Baker I, Bloom AA, Bowman K, Lee M, Zeng ZC, Commane R, Montzka SA, Berry J, Sweeney C, Miller JB, Yung YL.   +14 more
europepmc   +5 more sources

Temporal upscaling of MODIS instantaneous FAPAR improves forest gross primary productivity (GPP) simulation

International Journal of Applied Earth Observations and Geoinformation, 2023
Gross primary productivity (GPP) is a measure of carbon uptake by terrestrial ecosystems for carbon neutrality and serves as a key indicator for the Sustainable Development Goals. The instantaneous Fraction of Absorbed Photosynthetically Active Radiation
Yinghui Zhang, Zhongwen Hu, Jingzhe Wang, Xing Gao, Cheng Yang, Fengshuo Yang, Guofeng Wu   +6 more
doaj   +5 more sources

Mango‐GPP: A Process‐Based Model for Simulating Gross Primary Productivity of Mangrove Ecosystems

Journal of Advances in Modeling Earth Systems, 2023
Mangrove ecosystems are becoming increasingly important in global climate mitigation. However, large gaps still exist in evaluating mangroves' gross primary productivity (GPP) due to reasons such as the specific influences, for example, temperature and ...
Tingting Li, Xiu-Qun Yang, Qingchen Chao   +2 more
exaly   +4 more sources

Incorporating water availability into autumn phenological model improved China’s terrestrial gross primary productivity (GPP) simulation

Environmental Research Letters, 2021
Ecosystem models provide an effective approach to quantify the terrestrial carbon cycle, but the lack of accurate phenological information prevents them from better simulations of the physical processes. Compared with spring phenology (i.e.
Jie Peng, Chaoyang Wu, Xiaoyang Zhang, W. Ju, Xiaoyue Wang, Linlin Lu, Yibo Liu   +6 more
semanticscholar   +4 more sources

The impact of drought time scales and characteristics on gross primary productivity in China from 2001 to 2020

Geo-spatial Information Science
Drought events have occurred frequently in the past and have had profound effects on Gross Primary Productivity (GPP). However, the role of different drought event characteristics in the response of GPP to drought is not well understood.
Longxin Qiao, Haoming Xia
doaj   +4 more sources

CEDAR-GPP: spatiotemporally upscaled estimates of gross primary productivity incorporating CO2 fertilization [PDF]

Earth System Science Data, 2023
. Gross primary productivity (GPP) is the largest carbon flux in the Earth system, playing a crucial role in removing atmospheric carbon dioxide and providing carbohydrates needed for ecosystem metabolism. Despite the importance of GPP, however, existing
Yang-Rae Kang, M. Bassiouni, Max Gaber, Xinchen Lu, T. Keenan   +4 more
semanticscholar   +5 more sources

Estimating Gross Primary Productivity (GPP) over Rice–Wheat-Rotation Croplands by Using the Random Forest Model and Eddy Covariance Measurements: Upscaling and Comparison with the MODIS Product

Remote Sensing, 2021
Despite advances in remote sensing–based gross primary productivity (GPP) modeling, the calibration of the Moderate Resolution Imaging Spectroradiometer (MODIS) GPP product (GPPMOD) is less well understood over rice–wheat-rotation cropland.
Zexia Duan, Yuanjian Yang, Shaohui Zhou   +2 more
exaly   +2 more sources

Enhancing the Reliability of MODIS Gross Primary Productivity (GPP) by Improving Input Data [PDF]

Korean Journal of Agricultural and Forest Meteorology, 2007
The Moderate Resolution Imaging Spectroradiometer (MODIS) regularly provides the eight-day gross primary productivity (GPP) at 1 km resolution. In this study, we evaluated the uncertainties of MODIS GPP caused by errors associated with the Data Assimilation Office (DAO) meteorology and a biophysical variable (fraction of absorbed photosynthetically ...
Young-il Kim, Sinkyu Kang, Joong-Tae Kim
semanticscholar   +2 more sources

Estimation of Gross Primary Productivity (GPP) using Moderate Resolution Imaging Spectroradiometer (MODIS)

Borneo Journal of Sciences and Technology, 2020
: This study investigates the performances of satellite imagery data from Moderate Resolution Imaging Spectroradiometer (MODIS) in estimating gross primary production (GPP) in Kelantan. The quantitative estimation of GPP is calculated through a light use
N. Jemali, N. Alias, S. Daliman, A. Adeli, N. K. Syafinie, Abdul Majid   +5 more
semanticscholar   +2 more sources

Human-induced westerly jet shifts coordinate terrestrial productivity at the hemispheric scale [PDF]

Nature Communications
Previous studies have established how regional climate variability regulates local terrestrial gross primary productivity (GPP), yet the hemispheric-scale spatial organization of GPP, coordinated by large-scale atmospheric circulation, remains poorly ...
Xiaoye Yang, Aiguo Dai, Gabriele Messori, Bin He, Zhibo Li, Ziqian Zhong, Xing Yuan, Chang-Hoi Ho, Dim Coumou, Botao Zhou, Deliang Chen   +10 more
doaj   +2 more sources