-
Work for Atlas Geophysics!
We are looking for fit, tough blokes and gals to go bush to conduct geophysical survey work in the outback.
ANY AGE OK
You will get to see a lot of places in your travels,, both in WA and interstate. A great way to get paid to see Australia.
We supply tucker, accommodation and transport whilst youre away from Perth. Typically 3-4 weeks on, 1 week off. Some jobs may go a bit longer or shorter, but thats the typical scenario.
The work is on foot mainly, so you must be able to walk long distances, sometimes 15-20km in hot conditions. We dont need experience, we train on the job, but need resilience and a get it done attitude. Some of it may be in buggies which is easier, but we really need you to be able to walk all day.
Must have :
Drivers licence
Ability to pass a medical
Ability...
published: 17 Jun 2021
-
EMinar 1.28 Part 1: Malcolm Sambridge - Optimal transport and Geophysical inversion
The field of optimal transport is thought to have originated in the 19th century, when legend has it that Napoleon asked Gaspard Monge to rearrange his sand castles. That started a 200 year story of discovery and re-discovery of the mathematics of how to map, or transport, one curve (or probability distribution on to another). Leonid Kantorovich reformulated Monge’s problem in terms of more familiar linear programming which contributed to his winning the 1975 Nobel prize for economics. Cedric Villani pioneered the modern mathematical treatment of the topic and was awarded the 2010 Fields medal.
What has all of this got to do with Geophysics? Here exploration geophysicists have led the way and shown how to exploit OT in Full seismic waveform inversion. It turns out that optimal transport m...
published: 21 May 2021
-
Van Tour - Geophysical Logging Field Unit
This video is a quick tour of a geophysical logging field unit, used by our geologists and logging engineers to gather data on subsurface conditions in a variety of settings.
published: 18 Feb 2021
-
#Geophysical #TDEM, Time Domain Electro magnetic Projects line 01
published: 14 May 2022
-
Geophysical Fluid Dynamics- Geometry & Ecology
Techniques uncovering transport barriers and structures in environmental flows are poised to make a considerable impact on the field of ecology. Here we discuss some results relevant for real-time analysis and prediction of geophysical transport structures, which have arisen from applications to fluid-borne microbial ecology. Focusing on aeroecology, we consider challenges involved in forecasting atmospheric Lagrangian coherent structures, including the effect of subgrid turbulence and ensemble averaging. We also consider notions that may be relevant in an ecological context, such as persistent barriers, which may lead to the most diverse populations (in terms of origins) sampled sequentially at a geographically fixed location.
Presented by Shane Ross (Virginia Tech), Banff International ...
published: 15 Apr 2015
-
EMinar 1.28 Part 2: Malcolm Sambridge - Optimal transport and Geophysical inversion
The field of optimal transport is thought to have originated in the 19th century, when legend has it that Napoleon asked Gaspard Monge to rearrange his sand castles. That started a 200 year story of discovery and re-discovery of the mathematics of how to map, or transport, one curve (or probability distribution on to another). Leonid Kantorovich reformulated Monge’s problem in terms of more familiar linear programming which contributed to his winning the 1975 Nobel prize for economics. Cedric Villani pioneered the modern mathematical treatment of the topic and was awarded the 2010 Fields medal.
What has all of this got to do with Geophysics? Here exploration geophysicists have led the way and shown how to exploit OT in Full seismic waveform inversion. It turns out that optimal transport m...
published: 21 May 2021
-
TWP's Geophysical Surveys for the Ayre and Bowdun Offshore Wind Farms
In late March 2023, Thistle Wind Partners (TWP) launched seabed surveys for its two ScotWind projects – the 1GW Ayre Offshore Wind Farm (a floating wind project to the east of Orkney) and the 1GW Bowdun Offshore Wind Farm (a fixed-foundation project off the coast of Aberdeenshire).
G-tec is leading the first phase of the work, which is the geophysical surveying of the seabed at both sites (leasing zones NE2 and E3), from March to October of this year. G-tec is supported by GAC UK’s Aberdeen and Orkney offices for vessel logistics, while Cathie (headquartered in Newcastle) is providing advisory services.
Over the next seven months, the survey vessel will cover an area of almost 400 km square, as it uses cutting-edge technology to collect data on the structure of the seabed at both projec...
published: 06 Apr 2023
-
Geophysical Exploration in Oman
For 18 years, the #CNPC BGP has left an indelible mark in Oman, setting a remarkable record of 35 million safe man-hours for 18 consecutive years.
With an unwavering commitment to safety and efficient project operations, they have forged a strong brand image in the global high-end market. #globalCNPC #CNPCservice #LegacyOfExcellence
published: 23 May 2023
-
ESR11 - OPTIMISATION TECHNIQUES FOR GEOPHYSICAL ASSESSMENT OF RAIL SUPPORT STRUCTURES
Research by Emina Balic
http://superitn.eu/wp/?page_id=883
published: 06 Jun 2016
-
Geophysical mapping of Levee in Denmark, DualEM421
Geophysical mapping of Levee in Denmark, DualEM421
published: 10 Jan 2017
0:45
Work for Atlas Geophysics!
We are looking for fit, tough blokes and gals to go bush to conduct geophysical survey work in the outback.
ANY AGE OK
You will get to see a lot of places in y...
We are looking for fit, tough blokes and gals to go bush to conduct geophysical survey work in the outback.
ANY AGE OK
You will get to see a lot of places in your travels,, both in WA and interstate. A great way to get paid to see Australia.
We supply tucker, accommodation and transport whilst youre away from Perth. Typically 3-4 weeks on, 1 week off. Some jobs may go a bit longer or shorter, but thats the typical scenario.
The work is on foot mainly, so you must be able to walk long distances, sometimes 15-20km in hot conditions. We dont need experience, we train on the job, but need resilience and a get it done attitude. Some of it may be in buggies which is easier, but we really need you to be able to walk all day.
Must have :
Drivers licence
Ability to pass a medical
Ability to provide clear drug test
First aid course (you can get this before you start, $100)
Would like:
People with mechanical knowledge as we sometimes use buggies and ATV
People to work for at least 6 months
Interested people, please send me a message and include your phone number. Give us a paragraph about yourself and let us know why you think you can handle it ;)
https://wn.com/Work_For_Atlas_Geophysics
We are looking for fit, tough blokes and gals to go bush to conduct geophysical survey work in the outback.
ANY AGE OK
You will get to see a lot of places in your travels,, both in WA and interstate. A great way to get paid to see Australia.
We supply tucker, accommodation and transport whilst youre away from Perth. Typically 3-4 weeks on, 1 week off. Some jobs may go a bit longer or shorter, but thats the typical scenario.
The work is on foot mainly, so you must be able to walk long distances, sometimes 15-20km in hot conditions. We dont need experience, we train on the job, but need resilience and a get it done attitude. Some of it may be in buggies which is easier, but we really need you to be able to walk all day.
Must have :
Drivers licence
Ability to pass a medical
Ability to provide clear drug test
First aid course (you can get this before you start, $100)
Would like:
People with mechanical knowledge as we sometimes use buggies and ATV
People to work for at least 6 months
Interested people, please send me a message and include your phone number. Give us a paragraph about yourself and let us know why you think you can handle it ;)
- published: 17 Jun 2021
- views: 1634
11:30
EMinar 1.28 Part 1: Malcolm Sambridge - Optimal transport and Geophysical inversion
The field of optimal transport is thought to have originated in the 19th century, when legend has it that Napoleon asked Gaspard Monge to rearrange his sand cas...
The field of optimal transport is thought to have originated in the 19th century, when legend has it that Napoleon asked Gaspard Monge to rearrange his sand castles. That started a 200 year story of discovery and re-discovery of the mathematics of how to map, or transport, one curve (or probability distribution on to another). Leonid Kantorovich reformulated Monge’s problem in terms of more familiar linear programming which contributed to his winning the 1975 Nobel prize for economics. Cedric Villani pioneered the modern mathematical treatment of the topic and was awarded the 2010 Fields medal.
What has all of this got to do with Geophysics? Here exploration geophysicists have led the way and shown how to exploit OT in Full seismic waveform inversion. It turns out that optimal transport may be used as an alternate to Least squares measures to create a new type of data misfit function. It has been demonstrated that it has significant potential in nonlinear inversion by reducing the presence of local minima in misfit functions which would otherwise by highly multi-modal. Over the past decade this has created a flurry of excitement and activity in Seismic Waveform inversion in exploration geophysics, and a gradual appreciation of the topic more broadly. This talk will introduce OT for geophysical inversion in a more general context, and also discuss some new ideas and open questions which, as always, take the form of how do we best exploit these `pure’ mathematical concepts in an effective manner for practical outcomes.
https://wn.com/Eminar_1.28_Part_1_Malcolm_Sambridge_Optimal_Transport_And_Geophysical_Inversion
The field of optimal transport is thought to have originated in the 19th century, when legend has it that Napoleon asked Gaspard Monge to rearrange his sand castles. That started a 200 year story of discovery and re-discovery of the mathematics of how to map, or transport, one curve (or probability distribution on to another). Leonid Kantorovich reformulated Monge’s problem in terms of more familiar linear programming which contributed to his winning the 1975 Nobel prize for economics. Cedric Villani pioneered the modern mathematical treatment of the topic and was awarded the 2010 Fields medal.
What has all of this got to do with Geophysics? Here exploration geophysicists have led the way and shown how to exploit OT in Full seismic waveform inversion. It turns out that optimal transport may be used as an alternate to Least squares measures to create a new type of data misfit function. It has been demonstrated that it has significant potential in nonlinear inversion by reducing the presence of local minima in misfit functions which would otherwise by highly multi-modal. Over the past decade this has created a flurry of excitement and activity in Seismic Waveform inversion in exploration geophysics, and a gradual appreciation of the topic more broadly. This talk will introduce OT for geophysical inversion in a more general context, and also discuss some new ideas and open questions which, as always, take the form of how do we best exploit these `pure’ mathematical concepts in an effective manner for practical outcomes.
- published: 21 May 2021
- views: 162
3:59
Van Tour - Geophysical Logging Field Unit
This video is a quick tour of a geophysical logging field unit, used by our geologists and logging engineers to gather data on subsurface conditions in a variet...
This video is a quick tour of a geophysical logging field unit, used by our geologists and logging engineers to gather data on subsurface conditions in a variety of settings.
https://wn.com/Van_Tour_Geophysical_Logging_Field_Unit
This video is a quick tour of a geophysical logging field unit, used by our geologists and logging engineers to gather data on subsurface conditions in a variety of settings.
- published: 18 Feb 2021
- views: 334
32:24
Geophysical Fluid Dynamics- Geometry & Ecology
Techniques uncovering transport barriers and structures in environmental flows are poised to make a considerable impact on the field of ecology. Here we discuss...
Techniques uncovering transport barriers and structures in environmental flows are poised to make a considerable impact on the field of ecology. Here we discuss some results relevant for real-time analysis and prediction of geophysical transport structures, which have arisen from applications to fluid-borne microbial ecology. Focusing on aeroecology, we consider challenges involved in forecasting atmospheric Lagrangian coherent structures, including the effect of subgrid turbulence and ensemble averaging. We also consider notions that may be relevant in an ecological context, such as persistent barriers, which may lead to the most diverse populations (in terms of origins) sampled sequentially at a geographically fixed location.
Presented by Shane Ross (Virginia Tech), Banff International Research Station for Mathematical Innovation and Discovery, in September 2013. From a workshop on "Uncovering Transport Barriers in Geophysical Flows".
► Dr. Shane Ross, Virginia Tech professor (Caltech PhD)
Subscribe https://is.gd/RossLabSubscribe
► Follow me on Twitter
https://twitter.com/RossDynamicsLab
PDF slides: http://chaotician.com/talks/Ross-BIRS-2013-post.pdf
Links to related journal articles: http://www2.esm.vt.edu/~sdross/talks/index.html#BIRS2013
► Chapters
0:00 Introduction
0:38 Invasive species riding the atmosphere
2:24 Microbes ride in clouds, catalyze rain
3:29 Atmospheric transport of microorganisms
7:45 Count spores, identify down to level of species
8:25 Sources are unknown
10:32 A classic punctuated change
11:20 Atmospheric transport network
15:02 Sampling biological tracers at a fixed location
16:20 Sampling on either side of a LCS
16:52 Effect of turbulence
17:36 FTLE including sub-grid scale turbulence
18:11 Forecasting atmospheric LCS
20:10 Practical application: early warning systems
20:38 Lagrangian transport structure and ecology
21:29 Aeroecology and the global transport of desert dust
25:09 Forecasting sudden ecosystem changes
25:53 The End
#NonlinearDynamics #DynamicalSystems #LagrangianCoherentStructures #chaos #PlantBiology #aerobiology #Dust #weather #climate
https://wn.com/Geophysical_Fluid_Dynamics_Geometry_Ecology
Techniques uncovering transport barriers and structures in environmental flows are poised to make a considerable impact on the field of ecology. Here we discuss some results relevant for real-time analysis and prediction of geophysical transport structures, which have arisen from applications to fluid-borne microbial ecology. Focusing on aeroecology, we consider challenges involved in forecasting atmospheric Lagrangian coherent structures, including the effect of subgrid turbulence and ensemble averaging. We also consider notions that may be relevant in an ecological context, such as persistent barriers, which may lead to the most diverse populations (in terms of origins) sampled sequentially at a geographically fixed location.
Presented by Shane Ross (Virginia Tech), Banff International Research Station for Mathematical Innovation and Discovery, in September 2013. From a workshop on "Uncovering Transport Barriers in Geophysical Flows".
► Dr. Shane Ross, Virginia Tech professor (Caltech PhD)
Subscribe https://is.gd/RossLabSubscribe
► Follow me on Twitter
https://twitter.com/RossDynamicsLab
PDF slides: http://chaotician.com/talks/Ross-BIRS-2013-post.pdf
Links to related journal articles: http://www2.esm.vt.edu/~sdross/talks/index.html#BIRS2013
► Chapters
0:00 Introduction
0:38 Invasive species riding the atmosphere
2:24 Microbes ride in clouds, catalyze rain
3:29 Atmospheric transport of microorganisms
7:45 Count spores, identify down to level of species
8:25 Sources are unknown
10:32 A classic punctuated change
11:20 Atmospheric transport network
15:02 Sampling biological tracers at a fixed location
16:20 Sampling on either side of a LCS
16:52 Effect of turbulence
17:36 FTLE including sub-grid scale turbulence
18:11 Forecasting atmospheric LCS
20:10 Practical application: early warning systems
20:38 Lagrangian transport structure and ecology
21:29 Aeroecology and the global transport of desert dust
25:09 Forecasting sudden ecosystem changes
25:53 The End
#NonlinearDynamics #DynamicalSystems #LagrangianCoherentStructures #chaos #PlantBiology #aerobiology #Dust #weather #climate
- published: 15 Apr 2015
- views: 426
1:00:38
EMinar 1.28 Part 2: Malcolm Sambridge - Optimal transport and Geophysical inversion
The field of optimal transport is thought to have originated in the 19th century, when legend has it that Napoleon asked Gaspard Monge to rearrange his sand cas...
The field of optimal transport is thought to have originated in the 19th century, when legend has it that Napoleon asked Gaspard Monge to rearrange his sand castles. That started a 200 year story of discovery and re-discovery of the mathematics of how to map, or transport, one curve (or probability distribution on to another). Leonid Kantorovich reformulated Monge’s problem in terms of more familiar linear programming which contributed to his winning the 1975 Nobel prize for economics. Cedric Villani pioneered the modern mathematical treatment of the topic and was awarded the 2010 Fields medal.
What has all of this got to do with Geophysics? Here exploration geophysicists have led the way and shown how to exploit OT in Full seismic waveform inversion. It turns out that optimal transport may be used as an alternate to Least squares measures to create a new type of data misfit function. It has been demonstrated that it has significant potential in nonlinear inversion by reducing the presence of local minima in misfit functions which would otherwise by highly multi-modal. Over the past decade this has created a flurry of excitement and activity in Seismic Waveform inversion in exploration geophysics, and a gradual appreciation of the topic more broadly. This talk will introduce OT for geophysical inversion in a more general context, and also discuss some new ideas and open questions which, as always, take the form of how do we best exploit these `pure’ mathematical concepts in an effective manner for practical outcomes.
https://wn.com/Eminar_1.28_Part_2_Malcolm_Sambridge_Optimal_Transport_And_Geophysical_Inversion
The field of optimal transport is thought to have originated in the 19th century, when legend has it that Napoleon asked Gaspard Monge to rearrange his sand castles. That started a 200 year story of discovery and re-discovery of the mathematics of how to map, or transport, one curve (or probability distribution on to another). Leonid Kantorovich reformulated Monge’s problem in terms of more familiar linear programming which contributed to his winning the 1975 Nobel prize for economics. Cedric Villani pioneered the modern mathematical treatment of the topic and was awarded the 2010 Fields medal.
What has all of this got to do with Geophysics? Here exploration geophysicists have led the way and shown how to exploit OT in Full seismic waveform inversion. It turns out that optimal transport may be used as an alternate to Least squares measures to create a new type of data misfit function. It has been demonstrated that it has significant potential in nonlinear inversion by reducing the presence of local minima in misfit functions which would otherwise by highly multi-modal. Over the past decade this has created a flurry of excitement and activity in Seismic Waveform inversion in exploration geophysics, and a gradual appreciation of the topic more broadly. This talk will introduce OT for geophysical inversion in a more general context, and also discuss some new ideas and open questions which, as always, take the form of how do we best exploit these `pure’ mathematical concepts in an effective manner for practical outcomes.
- published: 21 May 2021
- views: 185
3:09
TWP's Geophysical Surveys for the Ayre and Bowdun Offshore Wind Farms
In late March 2023, Thistle Wind Partners (TWP) launched seabed surveys for its two ScotWind projects – the 1GW Ayre Offshore Wind Farm (a floating wind project...
In late March 2023, Thistle Wind Partners (TWP) launched seabed surveys for its two ScotWind projects – the 1GW Ayre Offshore Wind Farm (a floating wind project to the east of Orkney) and the 1GW Bowdun Offshore Wind Farm (a fixed-foundation project off the coast of Aberdeenshire).
G-tec is leading the first phase of the work, which is the geophysical surveying of the seabed at both sites (leasing zones NE2 and E3), from March to October of this year. G-tec is supported by GAC UK’s Aberdeen and Orkney offices for vessel logistics, while Cathie (headquartered in Newcastle) is providing advisory services.
Over the next seven months, the survey vessel will cover an area of almost 400 km square, as it uses cutting-edge technology to collect data on the structure of the seabed at both project sites. G-tec technical experts will conduct advanced processing of the data, which will then feed into ground modelling studies from October onwards, while metocean surveys begin around the same time.
https://wn.com/Twp's_Geophysical_Surveys_For_The_Ayre_And_Bowdun_Offshore_Wind_Farms
In late March 2023, Thistle Wind Partners (TWP) launched seabed surveys for its two ScotWind projects – the 1GW Ayre Offshore Wind Farm (a floating wind project to the east of Orkney) and the 1GW Bowdun Offshore Wind Farm (a fixed-foundation project off the coast of Aberdeenshire).
G-tec is leading the first phase of the work, which is the geophysical surveying of the seabed at both sites (leasing zones NE2 and E3), from March to October of this year. G-tec is supported by GAC UK’s Aberdeen and Orkney offices for vessel logistics, while Cathie (headquartered in Newcastle) is providing advisory services.
Over the next seven months, the survey vessel will cover an area of almost 400 km square, as it uses cutting-edge technology to collect data on the structure of the seabed at both project sites. G-tec technical experts will conduct advanced processing of the data, which will then feed into ground modelling studies from October onwards, while metocean surveys begin around the same time.
- published: 06 Apr 2023
- views: 404
1:44
Geophysical Exploration in Oman
For 18 years, the #CNPC BGP has left an indelible mark in Oman, setting a remarkable record of 35 million safe man-hours for 18 consecutive years.
With an unwa...
For 18 years, the #CNPC BGP has left an indelible mark in Oman, setting a remarkable record of 35 million safe man-hours for 18 consecutive years.
With an unwavering commitment to safety and efficient project operations, they have forged a strong brand image in the global high-end market. #globalCNPC #CNPCservice #LegacyOfExcellence
https://wn.com/Geophysical_Exploration_In_Oman
For 18 years, the #CNPC BGP has left an indelible mark in Oman, setting a remarkable record of 35 million safe man-hours for 18 consecutive years.
With an unwavering commitment to safety and efficient project operations, they have forged a strong brand image in the global high-end market. #globalCNPC #CNPCservice #LegacyOfExcellence
- published: 23 May 2023
- views: 280