Matches in SemOpenAlex for { <https://semopenalex.org/work/W4297237310> ?p ?o ?g. }
Showing items 1 to 98 of
98
with 100 items per page.
- W4297237310 abstract "<p>Estimates of mass changes from GRACE spherical harmonic (SH) solutions arrive at different results even for the same regions and timeframes. These differences can be attributed to two parts of the estimation. The first part is the preparation of a SH input dataset based on the GRACE solutions. This includes amendments to low-degree components and corrections for modelled geophysical signals. The second part, and topic of this presentation, is the estimation method itself. Studies assessing these estimation methods were mostly based on the resulting mass change estimates from a limited number of test signals. We propose to use the inherent sensitivity kernels (SKs) of estimation methods for comparison and assessment of methods. The SK describes the weighting function that is used to integrate a surface mass density representation of the prepared input dataset. It can be represented in either the spatial or SH domain. Alternative terms for the SK used in previous studies include 'averaging kernel', 'averaging function' or 'weight function'. For methods of the direct approach the SK is obvious. These methods directly construct the SK, mostly starting from modification of a simple region function. For methods of the inverse approach the SKs are less obvious. In this approach patterns of mass changes are defined which are then fitted to observations of the gravity field variations. However, SKs are also inherent to inverse methods and may be made explicit. In fact, certain implementations of both approaches have identical SKs when rigorously incorporating the same signal and error covariance information. Under this conditions both approaches are equivalent. Based on the SKs it is straight-forward to assess leakage errors and GRACE error propagation not only in the resulting mass change estimation. Publishing the SKs associated to a method also enables any user to investigate the method without deeper knowledge of the implementation details. We illustrate this by presenting SKs for our implementation of four different methods to estimate Greenland Ice Sheet mass changes. The SKs show similarities as well as striking differences which can be attributed to the underlying differences in the methods.</p>" @default.
- W4297237310 created "2022-09-28" @default.
- W4297237310 creator A5014011581 @default.
- W4297237310 creator A5037896237 @default.
- W4297237310 creator A5042646473 @default.
- W4297237310 creator A5070762844 @default.
- W4297237310 date "2022-09-26" @default.
- W4297237310 modified "2023-09-30" @default.
- W4297237310 title "Investigating differences between GRACE mass change estimation methods using their inherent sensitivity kernels" @default.
- W4297237310 doi "https://doi.org/10.5194/gstm2022-65" @default.
- W4297237310 hasPublicationYear "2022" @default.
- W4297237310 type Work @default.
- W4297237310 citedByCount "0" @default.
- W4297237310 crossrefType "posted-content" @default.
- W4297237310 hasAuthorship W4297237310A5014011581 @default.
- W4297237310 hasAuthorship W4297237310A5037896237 @default.
- W4297237310 hasAuthorship W4297237310A5042646473 @default.
- W4297237310 hasAuthorship W4297237310A5070762844 @default.
- W4297237310 hasConcept C105795698 @default.
- W4297237310 hasConcept C111472728 @default.
- W4297237310 hasConcept C11413529 @default.
- W4297237310 hasConcept C114614502 @default.
- W4297237310 hasConcept C121332964 @default.
- W4297237310 hasConcept C127413603 @default.
- W4297237310 hasConcept C134306372 @default.
- W4297237310 hasConcept C135252773 @default.
- W4297237310 hasConcept C138885662 @default.
- W4297237310 hasConcept C14036430 @default.
- W4297237310 hasConcept C162324750 @default.
- W4297237310 hasConcept C17744445 @default.
- W4297237310 hasConcept C178650346 @default.
- W4297237310 hasConcept C183115368 @default.
- W4297237310 hasConcept C185429906 @default.
- W4297237310 hasConcept C187736073 @default.
- W4297237310 hasConcept C199539241 @default.
- W4297237310 hasConcept C207467116 @default.
- W4297237310 hasConcept C21200559 @default.
- W4297237310 hasConcept C24326235 @default.
- W4297237310 hasConcept C24890656 @default.
- W4297237310 hasConcept C2524010 @default.
- W4297237310 hasConcept C2776359362 @default.
- W4297237310 hasConcept C2780586882 @default.
- W4297237310 hasConcept C33923547 @default.
- W4297237310 hasConcept C41008148 @default.
- W4297237310 hasConcept C71134354 @default.
- W4297237310 hasConcept C74193536 @default.
- W4297237310 hasConcept C78458016 @default.
- W4297237310 hasConcept C86803240 @default.
- W4297237310 hasConcept C94625758 @default.
- W4297237310 hasConcept C96250715 @default.
- W4297237310 hasConceptScore W4297237310C105795698 @default.
- W4297237310 hasConceptScore W4297237310C111472728 @default.
- W4297237310 hasConceptScore W4297237310C11413529 @default.
- W4297237310 hasConceptScore W4297237310C114614502 @default.
- W4297237310 hasConceptScore W4297237310C121332964 @default.
- W4297237310 hasConceptScore W4297237310C127413603 @default.
- W4297237310 hasConceptScore W4297237310C134306372 @default.
- W4297237310 hasConceptScore W4297237310C135252773 @default.
- W4297237310 hasConceptScore W4297237310C138885662 @default.
- W4297237310 hasConceptScore W4297237310C14036430 @default.
- W4297237310 hasConceptScore W4297237310C162324750 @default.
- W4297237310 hasConceptScore W4297237310C17744445 @default.
- W4297237310 hasConceptScore W4297237310C178650346 @default.
- W4297237310 hasConceptScore W4297237310C183115368 @default.
- W4297237310 hasConceptScore W4297237310C185429906 @default.
- W4297237310 hasConceptScore W4297237310C187736073 @default.
- W4297237310 hasConceptScore W4297237310C199539241 @default.
- W4297237310 hasConceptScore W4297237310C207467116 @default.
- W4297237310 hasConceptScore W4297237310C21200559 @default.
- W4297237310 hasConceptScore W4297237310C24326235 @default.
- W4297237310 hasConceptScore W4297237310C24890656 @default.
- W4297237310 hasConceptScore W4297237310C2524010 @default.
- W4297237310 hasConceptScore W4297237310C2776359362 @default.
- W4297237310 hasConceptScore W4297237310C2780586882 @default.
- W4297237310 hasConceptScore W4297237310C33923547 @default.
- W4297237310 hasConceptScore W4297237310C41008148 @default.
- W4297237310 hasConceptScore W4297237310C71134354 @default.
- W4297237310 hasConceptScore W4297237310C74193536 @default.
- W4297237310 hasConceptScore W4297237310C78458016 @default.
- W4297237310 hasConceptScore W4297237310C86803240 @default.
- W4297237310 hasConceptScore W4297237310C94625758 @default.
- W4297237310 hasConceptScore W4297237310C96250715 @default.
- W4297237310 hasLocation W42972373101 @default.
- W4297237310 hasOpenAccess W4297237310 @default.
- W4297237310 hasPrimaryLocation W42972373101 @default.
- W4297237310 hasRelatedWork W1973622377 @default.
- W4297237310 hasRelatedWork W1974968562 @default.
- W4297237310 hasRelatedWork W1996612033 @default.
- W4297237310 hasRelatedWork W2033536062 @default.
- W4297237310 hasRelatedWork W2356954849 @default.
- W4297237310 hasRelatedWork W2377575454 @default.
- W4297237310 hasRelatedWork W2389730489 @default.
- W4297237310 hasRelatedWork W3018843598 @default.
- W4297237310 hasRelatedWork W3161301253 @default.
- W4297237310 hasRelatedWork W4308102352 @default.
- W4297237310 isParatext "false" @default.
- W4297237310 isRetracted "false" @default.
- W4297237310 workType "article" @default.