Results 31 to 40 of about 626,301 (333)

Alkalinization Scenarios in the Mediterranean Sea for Efficient Removal of Atmospheric CO2 and the Mitigation of Ocean Acidification

Frontiers in Climate, 2021
It is now widely recognized that in order to reach the target of limiting global warming to well below 2°C above pre-industrial levels (as the objective of the Paris agreement), cutting the carbon emissions even at an unprecedented pace will not be ...
Momme Butenschön, Tomas Lovato, Simona Masina, Stefano Caserini, Mario Grosso   +4 more
doaj   +1 more source

Data assimilation [PDF]

, 2016
The purpose of this report is to describe a data assimilation prototype program(Appendix A) developed to estimate forest stand data. The program was developed and tested on data col-lected on the forest estate Remningstorp in southern Sweden. Data assimilation can be used to sequentially combine remote sensing based estimates of forest variables with ...
Nyström, Mattias, Grafström, Anton, Lindgren, Nils, Olsson, Håkan, Ståhl, Göran   +4 more
openaire   +4 more sources

Sampling error of observation impact statistics [PDF]

Tellus: Series A, Dynamic Meteorology and Oceanography, 2014
An observation impact is an estimate of the forecast error reduction by assimilating observations with numerical model forecasts. This study compares the sampling errors of the observation impact statistics (OBIS) of July 2011 and January 2012 using two ...
Sung-Min Kim, Hyun Mee Kim
doaj   +1 more source

Drivers and impact of the seasonal variability of the organic carbon offshore transport in the Canary upwelling system [PDF]

Biogeosciences, 2021
The Canary upwelling system (CanUS) is a productive coastal region characterized by strong seasonality and an intense offshore transport of organic carbon (Corg) to the adjacent oligotrophic offshore waters.
G. Bonino, E. Lovecchio, N. Gruber, M. Münnich, S. Masina, D. Iovino   +5 more
doaj   +1 more source

Tracking the Early Movements of Northeast China Cold Vortices Using FY-3D MWTS-2 Observations of Brightness Temperature

Remote Sensing, 2022
The Northeast China cold vortex (NCCV) often occurs in spring and summer, causing extreme weather such as rainstorm and hail in Northeast China. The brightness temperature (TB) observations of Microwave Temperature Sounder-2 (MWTS-2) on board Fengyun-3D (
Hui Liu, Xiaolei Zou
doaj   +1 more source

The role of heat wave events in the occurrence and persistence of thermal stratification in the southern North Sea [PDF]

Natural Hazards and Earth System Sciences, 2022
Temperature extremes not only directly affect the marine environment and ecosystems but also indirectly influence hydrodynamics and marine life. In this study, the role of heat wave events in the occurrence and persistence of thermal stratification was ...
W. Chen, J. Staneva, S. Grayek, J. Schulz-Stellenfleth, J. Greinert   +4 more
doaj   +1 more source

Improved Calculation of Nonlinear Near-Bed Wave Orbital Velocity in Shallow Water: Validation against Laboratory and Field Data

Journal of Marine Science and Engineering, 2020
A new parameterization for calculating the nonlinear near-bed wave orbital velocity in the shallow water was presented. The equations proposed by Isobe and Horikawa (1982) were modified in order to achieve more accurate predictions of the peak orbital ...
Pham Thanh Nam, Joanna Staneva, Nguyen Thi Thao, Magnus Larson   +3 more
doaj   +1 more source

The Aerosol Module in the Community Radiative Transfer Model (v2.2 and v2.3): accounting for aerosol transmittance effects on the radiance observation operator [PDF]

Geoscientific Model Development, 2022
The Community Radiative Transfer Model (CRTM), a sensor-based radiative transfer model, has been used within the Gridpoint Statistical Interpolation (GSI) system for directly assimilating radiances from infrared and microwave sensors.
C.-H. Lu, C.-H. Lu, Q. Liu, S.-W. Wei, S.-W. Wei, B. T. Johnson, C. Dang, P. G. Stegmann, D. Grogan, G. Ge, G. Ge, M. Hu, M. Lueken, M. Lueken   +13 more
doaj   +1 more source

Evaluating Data Assimilation Algorithms [PDF]

, 2012
Data assimilation leads naturally to a Bayesian formulation in which the posterior probability distribution of the system state, given the observations, plays a central conceptual role.
A. M. Stuart, Anderson, Apte, Apte, Apte, Arulampalam, Auvinen, Bain, Banks, Banks, Bengtsson, Bennett, Brett, Brooks, Bryson, Bröcker, Carrassi, Chorin, Chorin, Cotter, Cotter, Courtier, Cox, Cox, Doucet, Evensen, Evensen, Evensen, Fisher, Hamill, Harlim, Harvey, Hesthaven, Hinze, Jazwinski, K. J. H. Law, Kaipio, Kalman, Kalnay, Kelley, Lawless, Lei, Leutbecher, Liu, Lorenc, Lorenz, Lorenz, Majda, Meng, Miller, Nocedal, Palmer, Quinn, Saad, Snyder, Stuart, Talagrand, Tarantola, Temam, Tippett, Toth, Trefethen, van Leeuwen, van Leeuwen, Vogel, Vogel, Zhang, Zhang, Zupanski   +68 more
core   +3 more sources

On process-oriented conditional targeted covariance inflation (TCI) for 3D-volume radar data assimilation [PDF]

Nonlinear Processes in Geophysics
This paper addresses a major challenge in assimilating 3D radar reflectivity data with a localized ensemble transform Kalman filter (LETKF).
K. Vobig, R. Potthast, R. Potthast, K. Stephan   +3 more
doaj   +1 more source