Results 91 to 100 of about 6,187 (170)

Elevation uncertainties in the Mekong Delta quantified using a transferable approach

Scientific Reports
The elevation of coastal lowlands relative to local sea level is a crucial determinant for their exposure and is key input for coastal hazard and relative sea-level rise impact assessments.
Katharina Seeger, Philip S. J. Minderhoud   +1 more
doaj   +1 more source

A case study of geoid modeling in Sulawesi and accuracy verification strategies for accommodating diverse MSL vertical datums

Terrestrial, Atmospheric and Oceanic Sciences
This study aims to introduce the geoid modeling process in Sulawesi and demonstrate the practical issues faced. There are limitations of terrestrial gravity surveys in Sulawesi due to its complex geography, so airborne gravity surveys were conducted from
Hsuan-Chang Shih, Leni Sophia Heliani, Yu-Shen Hsiao, Cheinway Hwang, Arisauna Maulidyan Pahlevi   +4 more
doaj   +1 more source

The Importance of Using Deviations of the Vertical for the Reduction of Survey Data to a Geocentric Datum [PDF]

, 2000
This paper reviews the deviation of vertical and its use in the reduction of terrestrial survey data such as directions, azimuths, zenith angles and slope distances.
Featherstone, Will, Rueger, J.
core  

ANÁLISE DE SÉRIES TEMPORAIS MAREGRÁFICAS CORRELACIONADAS COM OBSERVAÇÕES GNSS NO DATUM VERTICAL BRASILEIRO DE IMBITUBA-SC

, 2016
Neste trabalho apresentamos uma metodologia para distinguir possíveis movimentos da crosta de variações do nível médio do mar, utilizando dados GNSS, modelos de velocidade e dados maregráï¬cos.
Dalazoana, Regiane, Da Silva, Luciana Maria, De Freitas, Silvio Rogerio Correia   +2 more
core   +1 more source

Yugoslav Vertical Datum and Preliminary Connections of Yugoslav, Austrian and Italian Levelling Networks

, 1991
Rad obuhvaća: 1. sintezu istraživanja stvarne visine nulte točke austrougarskog nivelmana, 2. definira novi visinski datum Jugoslavije, te 3. daje originalnu metodu u pogledu izbora najprihvatljivijeg modela visine normalnog repera u Maglaju.
Marchesini, Claudio, Bilajbegović, Asim
core  

Implicações da adoção do referencial geodésico SIRGAS 2000 na cartografia em escala grande [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.Desde 2005 o Brasil vem atravessando um momento singular na Cartografia.
Fernandes, Vivian de Oliveira
core  

Evaluating the Potential of Sea Surface Height Observations and Depth Datum Calculation Using GNSS/IMU Buoys

Journal of Marine Science and Engineering
This study evaluates the potential of GNSS/IMU buoys for sea surface height observations and depth datum verification. GNSS/IMU buoys were deployed alongside 34 tide gauges around Taiwan for synchronous sea surface height measurements. The collected GNSS
Chung-Yen Kuo, Wen-Hau Lan, Chi-Ming Lee, Huan-Chin Kao   +3 more
doaj   +1 more source

The effect of vertical datum inconsistencies on the determination of gravity related quantities

, 1983
Three different models of inconsistencies in the world vertical datum due to the Sea Surface Topography problem are constructed. A spherical harmonic decomposition of different models of global vertical datum inconsistencies into a set of potential ...
Laskowski, Piotr
core  

Progress towards implementation and development of a New Zealand vertical datum

, 2005
. New Zealand currently uses 13 disparate vertical datums, each connected to a separate tide gauge. In 1998, a new national datum, NZGD2000, was implemented based on GPS observations. This leads to a 3D geocentric datum.
Featherstone, Will, Amos, Matthew, G. H. Blick, M. J. Amos, W. E. Featherstone, Blick, G.   +5 more
core  

ESTUDOS DO NMM A PARTIR DE SÉRIES TEMPORAIS MAREGRÁFICAS E DE ALTIMETRIA POR SATÉLITES VISANDO A INTEGRAÇÃO DA REDE VERTICAL BRASILEIRA AO SIRGAS

Revista Brasileira de Cartografia, 2009
Na Geodésia, o monitoramento do nível do mar tem um papel importante na realização de sistemas globais de referência e permite a integração de dados referidos às redes verticais clássicas, onde cada Datum é definido pelo Nível Médio do Mar (NMM), com ...
Regiane Dalazoana, Roberto Teixeira Luz, Sílvio Rogério Correia de Freitas   +2 more
doaj