Author: Daniel T. O'BrienPublisher:
ISBN:
Category : National parks and reserves
Languages : en
Pages : 158
Book Description
Measuring Terrestrial Net Primary Productivity in Arctic Ecosystems Using AVHRR Satellite Imagery
Author: Daniel T. O'BrienPublisher:
ISBN:
Category : National parks and reserves
Languages : en
Pages : 158
Book Description
Measuring Terrestrial Net Primary Productivity in Arctic Ecosystems with AVHRR Satellite Imagery
Author: Daniel T. O'BrienStudy on Regional Responses of Pan-arctic Terrestrial Ecosystems to Recent Climate Variability Using Satellite Remote Sensing
Author: Ke ZhangPublisher:
ISBN:
Category : Bioclimatology
Languages : en
Pages : 0
Book Description
I applied a satellite remote sensing based production efficiency model (PEM) using an integrated AVHRR and MODIS FPAR/LAI time series with a regionally corrected NCEP/NCAR reanalysis surface meteorology and NASA/GEWEX shortwave solar radiation inputs to assess annual terrestrial net primary productivity (NPP) for the pan-Arctic basin and Alaska from 1983 to 2005. I developed a satellite remote sensing based evapotranspiration (ET) algorithm using GIMMS NDVI with the above meteorology inputs to assess spatial patterns and temporal trends in ET over the pan-Arctic region. I then analyzed associated changes in the regional water balance defined as the difference between precipitation (P) and ET. I finally analyzed the effects of regional climate oscillations on vegetation productivity and the regional water balance. The results show that low temperature constraints on Boreal-Arctic NPP are decreasing by 0.43% per year (P P = 0.04) are offsetting the potential benefits of longer growing seasons and contributing to recent drought related disturbances in NPP. The PEM simulations of NPP seasonality, annual anomalies and trends are similar to stand inventory network measurements of boreal aspen stem growth (r = 0.56; P = 0.007) and atmospheric CO2 measurement based estimates of the timing of growing season onset (r = 0.78; P
Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space
Author: National Academies of Sciences, Engineering, and MedicinePublisher: National Academies Press
ISBN: 0309492432
Category : Science
Languages : en
Pages : 29
Book Description
We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities â€" social, economic, security, and more â€" that such knowledge can bring. By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space (National Academies Press, 2018) provides detailed guidance on how relevant federal agencies can ensure that the United States receives the maximum benefit from its investments in Earth observations from space, while operating within realistic cost constraints. This short booklet, designed to be accessible to the general public, provides a summary of the key ideas and recommendations from the full decadal survey report.
Earth Observation of Ecosystem Services
Author: Domingo Alcaraz-SeguraPublisher: CRC Press
ISBN: 1466505885
Category : Nature
Languages : en
Pages : 520
Book Description
A balanced review of differing approaches based on remote sensing tools and methods to assess and monitor biodiversity, carbon and water cycles, and the energy balance of terrestrial ecosystem. Earth Observation of Ecosystem Services highlights the advantages Earth observation technologies offer for quantifying and monitoring multiple ecosystem functions and services. It provides a multidisciplinary reference that expressly covers the use of remote sensing for quantifying and monitoring multiple ecosystem services. Rather than exhaustively cover all possible ecosystem services, this book takes a global look at the most relevant remote sensing approaches to estimate key ecosystem services from satellite data. Structured in four main sections, it covers carbon cycle, biodiversity, water cycle, and energy balance. Each section contains a review of conceptual and empirical methods, techniques, and case studies linking remotely sensed data to the biophysical variables and ecosystem functions associated with key ecosystem services. The book identifies relevant issues and challenges of assessment, presents cutting-edge sensing techniques, uses globally implemented tools to quantify ecosystem functions, and presents examples of successful monitoring programs. Covering recent developments undertaken on the global and national stage from Earth observation satellite data, it includes valuable lessons and recommendations and novel ways to improve current global monitoring systems. The book delineates the use of Earth observation data so that it can be used to quantify, map, value, and manage the valuable goods and services that ecosystems provide to societies around the world.
NASA Technical Memorandum
Author: Terrestrial Ecosystems in Changing Environments
Author: Herman Henry ShugartPublisher: Cambridge University Press
ISBN: 9780521565233
Category : Science
Languages : en
Pages : 550
Book Description
A unique review of the problem of predicting the response of ecosystems to changed conditions.
General Technical Report INT
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 296
Book Description
Advances in Land Remote Sensing
Author: Shunlin LiangPublisher: Springer Science & Business Media
ISBN: 1402064500
Category : Technology & Engineering
Languages : en
Pages : 499
Book Description
It collects the review papers of the 9th International Symposium on Physical Measurements and Signatures in Remote Sensing (ISPMSRS). It systematically summarizes the past achievements and identifies the frontier issues as the research agenda for the near future. It covers all aspects of land remote sensing, from sensor systems, physical modeling, inversion algorithms, to various applications.
Proceedings, Shrubland Ecosystem Dynamics in a Changing Environment
Author: Jerry R. BarrowPublisher:
ISBN:
Category : Global environmental change
Languages : en
Pages : 288
Book Description
This proceedings contains 50 papers including an overview of shrubland ecosystem dynamics in a changing environment and several papers each on vegetation dynamics, management concerns and options, and plant ecophysiology as well as an account of a Jornada Basin field trip. Contributions emphasize the impact of changing environmental conditions on vegetative composition especially in the Jornada Basin and Chihuahuan Desert but also in other parts of western North America and the world.