| 1. Identity statement | ||||
| Reference Type | Slides (Audiovisual Material) | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/43UNLJH | |||
| Repository | sid.inpe.br/mtc-m21c/2021/01.14.18.43 | |||
| Last Update | 2021:01.14.18.43.46 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2021/01.14.18.43.46 | |||
| Metadata Last Update | 2021:09.16.03.39.42 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | MarquesAssuPadiPádu:2018:AsSoAm | |||
| Title | Assessment of South America mid-plate strain rates through GNSS velocities estimated from SIRGAS-C time series  | |||
| Short Title | Slides | |||
| Format | On-line | |||
| Year | 2018 | |||
| Access Date | 2024, May 18 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 1498 KiB | |||
| 2. Context | ||||
| Author | 1 Marques, Haroldo Antonio 2 Assumpção, Marcelo 3 Padilha, Antônio Lopes 4 Pádua, Marcelo Banik de | |||
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JGJG 4 8JMKD3MGP5W/3C9JHNR | |||
| Group | 1 2 3 DIDGE-CGCEA-INPE-MCTIC-GOV-BR 4 DIDGE-CGCEA-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Instituto Militar de Engenharia (IME) 2 Universidade de São Paulo (USP) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 2 3 antonio.padilha@inpe.br 4 marcelo.banik@inpe.br | |||
| Conference Name | AGU Fall Meeting | |||
| Conference Location | Washington, D. C. | |||
| Date | 10-14 dec. | |||
| Publisher | Instituto Nacional de Pesquisas Espaciais | |||
| Publisher City | São José dos Campos | |||
| History (UTC) | 2021-01-14 18:43:46 :: simone -> administrator :: 2021-09-16 03:39:42 :: administrator -> simone :: 2018 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | We are investigating terrain deformations of long range and persistence that take place on continental scale over the stable shield of continental South America. The crustal deformation is being investigated by correlating with velocities and directions obtained from time series of approximately 60 GNSS stations deployed in Brazil and neighboring countries that take part of the Continuous network of the Geocentric Reference System for the Americas (SIRGAS-C). We attempt to estimate velocities and mid-plate strain rates using the best GNSS stations located in the stable South America mid-plate. The velocities have been estimated by Least Square Estimation (LSE) using SIRGAS weekly time series with a stochastic model composed of white noise plus flicker or random walk noises. Variance Component Estimation (VCE; Amiri-Simkooei et al., 2007) has been applied to classify the type of noise and compose the time series stochastic model. In addition, the time series breaks and offsets are taken into account in the LSE. The noises were classified as white plus flicker noise in approximately 70% of the horizontal component and most of random walk appears for stations located in the Amazon and Pantanal basins or near the coastal zones. The estimated formal precision reach about 0.10 mm/year with RMS of residual near 1.5 and 4.5 mm respectively for horizontal and vertical velocities. The estimated velocities by LSE were also computed by using the MIDAs code (Blewit et al 2015) and the results show an agreement of the order of 0.30 mm/y. The computed strain rates in the central part of Brazil indicate shortening, consistent with the predominance of reverse faulting mechanisms. When a station pair includes one station near the coast, the linear strain rates indicate extension. However, strain rates do not clearly indicate a preferred principal direction and do not seem compatible with the stress patterns derived from the focal mechanisms. In addition, the rate of seismic moment release indicates strain rates from earthquake occurrence two to three orders of magnitude lower than the observed strain rates from the geodetic network. Assessment of South America linear strain rates computed through estimated GNSS velocities will be discussed. | |||
| Area | CEA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Slides | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Assessment of South... > Slides | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34R/43UNLJH | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34R/43UNLJH | |||
| Language | en | |||
| Target File | marques_assessment_poster.pdf | |||
| User Group | simone | |||
| Visibility | shown | |||
| Read Permission | allow from all | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3EU29DP 8JMKD3MGP3W34R/3SB3DDH | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.40.26 2 sid.inpe.br/mtc-m21/2012/07.13.14.54.32 1 | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi e-mailaddress isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofslides orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session sponsor subject tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||