.. _geoh5_objects: Objects ======= .. figure:: ./images/objects.png :align: right :width: 300 Objects are containers for ``Data`` with spatial information. Most (not all) object geometry is described in terms of vertices (3D locations) and cells (groupings of vertices such as triangles or segments). The exact requirements and interpretation depends on the type. **Attributes** :Name: ``str`` Name of the object displayed in the project tree. :ID: ``str`` Unique identifier (*UUID*) of the group. :Visible: ``int``, 0 or (default) 1 Set visible in the 3D camera (checked in the object tree). :Public: ``int``, 0 or (default) 1 Set accessible in the object tree and other parts of the the user interface. :Clipping IDs: 1D array of ``UUID`` (Optional) List of unique identifiers of clipping plane objects. :Allow delete: ``int``, 0 or (default) 1 (Optional) User interface allows deletion. :Allow move: ``int``, 0 or (default) 1 (Optional) User interface allows moving to another parent group. :Allow rename: ``int``, 0 or (default) 1 (Optional) User interface allows renaming. :Metadata: (``int``, optional) (Optional) Any additional text attached to the group. The following section describes the supported object types and their specific attributes. .. _geoh5_points: Points ------ **UUID : {202C5DB1-A56D-4004-9CAD-BAAFD8899406}** 3-D scatter points object defined by vertices with fixed coordinates in Cartesian system (x, y and z). Datasets ^^^^^^^^ :Vertices: 1D composite array [*x* ``double``, *y* ``double``, *z* ``double``] .. _geoh5_curve: Curve ----- **UUID : {6A057FDC-B355-11E3-95BE-FD84A7FFCB88}** Polyline object defined by a series of line segments (cells) connecting vertices. Data can be associated to either the vertices or cells. Attributes ^^^^^^^^^^ :Current line property ID: ``str``, *UUID* Unique identifier of a reference data for naming of curve parts. Datasets ^^^^^^^^ :Cells: Array of ``int32``, shape(N, 2) Array defining the connection (line segment) between pairs of vertices. Surface ------- **UUID : {F26FEBA3-ADED-494B-B9E9-B2BBCBE298E1}** Triangulated mesh object defined by cells (triangles) and vertices. Datasets ^^^^^^^^ :Cells: Array of ``int32``, shape(N, 3) Array defining the connection between triplets of vertices, representing triangles. Block model ----------- **UUID : {B020A277-90E2-4CD7-84D6-612EE3F25051}** Rectilinear grid of cells defined along three orthogonal axes (U,V and Z) of length nU, nV and nZ respectively. The conversion between the array coordinates of a cell to a 1-D vector index can be calculated from :: cell index = k + i*nZ + j*nU*nZ Without rotation angles, U points eastwards, V points northwards, and Z points upwards. Since their geometry is defined entirely by the additional data described below, block models do not require a ``Vertices`` or ``Cells`` dataset. Datasets ^^^^^^^^ :U cell delimiters: array of ``double``, shape(nU,) Distances of cell edges from origin along the U axis (first value should be 0) :V cell delimiters: array of ``double``, shape(nV,) Distances of cell edges from origin along the V axis (first value should be 0) :Z cell delimiters: array of ``double``, shape(nZ,) Distances of cell edges from origin upwards along the vertical axis (first value should be 0) Attributes ^^^^^^^^^^ :Origin: composite type [*X* ``double``, *Y* ``double``, *Z* ``double``] Origin point of grid :Rotation: ``double`` (default) 0 Counterclockwise angle (degrees) of rotation around the vertical axis in degrees. 2D Grid ------- **UUID : {48f5054a-1c5c-4ca4-9048-80f36dc60a06}** Rectilinear grid of cells defined along two orthogonal axes (U and V) of length nU and nV. The conversion between the grid coordinates of a cell to its 1-D vector index can be calculated from :: cell index = i + j*nU Without rotation angles, U points eastwards and V points northwards. Since their geometry is defined entirely by the additional data described below, 2D grids do not require a Vertices or Cells dataset. Attributes ^^^^^^^^^^ :Origin: composite type [*X* ``double``, *Y* ``double``, *Z* ``double``] Origin point of the grid. :U Size: ``double`` Length of U axis :U Count: ``double`` Number of cells along U axis :V Size: ``double`` Length of V axis :V Count: ``double`` Number of cells along V axis :Rotation: ``double`` (Optional) Counterclockwise angle (degrees) of rotation around the vertical axis at the Origin. :Vertical: ``char``, 0(false, default) or 1(true)) (Optional) If true, V axis is vertical (and rotation defined around the V axis) Drillhole --------- **UUID : {7CAEBF0E-D16E-11E3-BC69-E4632694AA37}** Object representing boreholes defined by a collar location and survey parameters. Vertices represent points along the drillhole path (support for data rather than the drillhole geometry itself) and must have a ``Depth`` property value. Cells contain two vertices and represent intervals along the drillhole path (and are a support for interval data as well). Cells may overlap with each other to accommodate the different sampling intervals of various data. Attributes ^^^^^^^^^^ :Collar: composite type, shape(3,) [*X* ``double``, *Y* ``double``, *Z* ``double``] Collar location Datasets ^^^^^^^^ :Surveys: composite array, shape(3,) [*Depth* ``double``, *Dip* ``double``, *Azimuth* ``double``] Survey locations :Trace: 1D composite array [*X* ``double``, *Y* ``double``, *Z* ``double``] Points forming the drillhole path from collar to end of hole. Must contain at least two points. Geoimage -------- **UUID : {77AC043C-FE8D-4D14-8167-75E300FB835A}** *Not yet geoh5py implemented* *To be further documented* Vertices represent the four corners of the geolocated image. No cell data. An object-associated file-type data containing the image to display is expected to exist under this object. .. note:: Should be arranged as a rectangle currently, since Geoscience ANALYST does not currently support skewed images. Label ----- **UUID : {E79F449D-74E3-4598-9C9C-351A28B8B69E}** *Not yet geoh5py implemented* *To be further documented* Has no vertices nor cell data Attributes ^^^^^^^^^^ :Target position: composite type, shape(3,) [*X* ``double``, *Y* ``double``, *Z* ``double``] The target location of the label :Label position: composite type, shape(3,) [*X* ``double``, *Y* ``double``, *Z* ``double``] (Optional - Defaults to same as target position ) The location where the text of the label is displayed Slicer ------ **UUID : {238f961d-ae63-43de-ab64-e1a079271cf5}** *Not yet geoh5py implemented* *To be further documented* Target ------ **UUID : {46991a5c-0d3f-4c71-8661-354558349282}** *Not yet geoh5py implemented* *To be further documented* ioGAS Points ------------ **UUID : {d133341e-a274-40e7-a8c1-8d32fb7f7eaf}** *Not yet geoh5py implemented* *To be further documented* Maxwell Plate ------------- **UUID : {878684e5-01bc-47f1-8c67-943b57d2e694}** *Not yet geoh5py implemented* *To be further documented* Octree ------ **UUID : {4ea87376-3ece-438b-bf12-3479733ded46}** Semi-structured grid that stores cells in a tree structure with eight octants. Datasets ^^^^^^^^ :Octree Cells: composite type, shape(N, 4) [*I* ``integer``, *J* ``integer``, *K* ``integer``, *NCells* ``integer``] Array defining the position (I, J, K) and size (NCells) of every cell within the base octree grid. Attributes ^^^^^^^^^^ :NU: ``integer`` Number of base cells along the U-axis. :NV: ``integer`` Number of base cells along the V-axis. :NW: ``integer`` Number of base cells along the W-axis. :Origin: composite type, shape(3,) [*X* ``double``, *Y* ``double``, *Z* ``double``] Origin point of the grid. :Rotation: ``double`` (default) 0 Counterclockwise angle (degrees) of rotation around the vertical axis in degrees. :U Cell Size: ``double`` Base cell dimension along the U-axis. :V Cell Size: ``double`` Base cell dimension along the V-axis. :W Cell Size: ``double`` Base cell dimension along the W-axis. Text Object ----------- **UUID : {c00905d1-bc3b-4d12-9f93-07fcf1450270}** *Not yet geoh5py implemented* *To be further documented* .. _geoh5_potential_electrode: Potential Electrode ------------------- **UUID : {275ecee9-9c24-4378-bf94-65f3c5fbe163}** :ref:`Curve ` object representing the receiver electrodes of a direct-current resistivity survey. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` Dictionary defining the link between the source and receiver objects. - "Current Electrodes" ``uuid``: Identifier for the linked :ref:`Current Electrode ` - "Potential Electrodes" ``uuid``: Identifier for the linked :ref:`Potential Electrode ` Requirements ^^^^^^^^^^^^ :A-B Cell ID: Data entity Reference data named "A-B Cell ID" with ``association=CELL`` expected. The values define the source dipole (cell) from the :ref:`Current Electrode ` to every potential measurement. .. _geoh5_current_electrode: Current Electrode ----------------- **UUID : {9b08bb5a-300c-48fe-9007-d206f971ea92}** :ref:`Curve ` object representing the transmitter electrodes of a direct-current resistivity survey. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` Dictionary defining the link between the source and receiver objects. Same definition as the :ref:`Potential Electrode ` object. Requirements ^^^^^^^^^^^^ :A-B Cell ID: Data entity Reference data named "A-B Cell ID" with ``association=CELL`` defining a unique identifier to every unique dipole sources. For "pole" sources, the ``cell`` attribute references twice to the same vertex. VP Model -------- **UUID : {7d37f28f-f379-4006-984e-043db439ee95}** *Not yet geoh5py implemented* *To be further documented* .. _geoh5_atem_rx: Airborne TEM Rx --------------- **UUID : {19730589-fd28-4649-9de0-ad47249d9aba}** :ref:`Curve ` object representing an array of time-domain electromagnetic receiver dipoles. Attributes ^^^^^^^^^^ :SurveyCost: ``double`` Datasets ^^^^^^^^ :Metadata: json formatted ``string`` Dictionary of survey parameters shared with the :ref:`Transmitters `. The following items are core parameters stored under the "EM Dataset" key. - "Channels": ``list`` of ``double`` Time channels at which data are recorded. - "Input type": ``string`` Type of survey from "Rx", "Tx" or "Tx and Rx" - "Loop radius": ``double`` Transmitter loop radius. - "Property groups": ``list`` of ``uuid`` Reference to property groups containing data at every channel. - "Receivers": ``uuid`` Unique identifier referencing to itself. - "Survey type": ``string`` Defaults to "Airborne TEM". - "Transmitters": ``uuid`` Unique identifier referencing to the linked transmitters entity. - "Unit": ``string`` Sampling units, must be one of "Seconds (s)", "Milliseconds (ms)", "Microseconds (us)" or "Nanoseconds (ns)". - "Crossline offset property" ``uuid`` OR "Crossline offset value" ``double``: Offline offset between the receivers and transmitters, either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Inline offset property" ``uuid`` OR "Crossline offset value" ``double``: Inline offset between the receivers and transmitters, either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Yaw property" ``uuid`` OR "Yaw value" ``double``: Rotation (angle) of the transmitter loop as measured on the UV-plane (+ clockwise), either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Pitch property" ``uuid`` OR "Pitch value" ``double``: Tilt angle of the transmitter loop as measured on the VW-plane (+ nose up), either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Roll property" ``uuid`` OR "Roll value" ``double``: Banking angle of the transmitter loop as measured on the UW-plane (+ right-wing down), either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Waveform" ``dict``: - "Discretization" array of ``double``, shape(N, 2): Array of times and normalized currents (Amp) describing the source impulse over a discrete interval (e.g. [[t_1, c_1], [t_2, c_2], ..., [t_N, c_N]]) - "Timing mark" ``double``: Reference timing mark measured from the beginning of the "Discretization". Generally used as the reference (t_i=0.0) for the provided data channels: (-) on-time an (+) off-time. .. _geoh5_atem_tx: Airborne TEM Tx --------------- **UUID : {58c4849f-41e2-4e09-b69b-01cf4286cded}** :ref:`Curve ` object representing an array of time-domain electromagnetic transmitter loops. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` See definition from the :ref:`Airborne TEM Rx ` object. The "Transmitters" ``uuid`` value should point to itself, while the "Receivers" ``uuid`` refers the linked :ref:`Airborne TEM Rx ` object. .. _geoh5_gtem_rx: Moving Loop Ground TEM Rx ------------------------- **UUID : {41018a45-01a0-4c61-a7cb-9f32d8159df4}** :ref:`Curve ` object representing an array of time-domain electromagnetic moving receiver dipoles. Attributes ^^^^^^^^^^ :SurveyCost: ``double`` Datasets ^^^^^^^^ :Metadata: json formatted ``string`` Dictionary of survey parameters shared with the :ref:`Transmitters `. The following items are core parameters stored under the "EM Dataset" key. - "Channels": ``list`` of ``double`` Time channels at which data are recorded. - "Input type": ``string`` Type of survey from "Rx", "Tx" or "Tx and Rx" - "Loop radius": ``double`` Transmitter loop radius. - "Property groups": ``list`` of ``uuid`` Reference to property groups containing data at every channel. - "Receivers": ``uuid`` Unique identifier referencing to itself. - "Survey type": ``string`` Defaults to "Ground TEM". - "Transmitters": ``uuid`` Unique identifier referencing to the linked transmitters entity. - "Unit": ``string`` Sampling units, must be one of "Seconds (s)", "Milliseconds (ms)", "Microseconds (us)" or "Nanoseconds (ns)". - "Waveform" ``dict``: - "Discretization" array of ``double``, shape(N, 2): Array of times and normalized currents (Amp) describing the source impulse over a discrete interval (e.g. [[t_1, c_1], [t_2, c_2], ..., [t_N, c_N]]) - "Timing mark" ``double``: Reference timing mark measured from the beginning of the "Discretization". Generally used as the reference (t_i=0.0) for the provided data channels: (-) on-time an (+) off-time. .. _geoh5_gtem_tx: Moving Loop Ground TEM Tx ------------------------- **UUID : {98a96d44-6144-4adb-afbe-0d5e757c9dfc}** :ref:`Curve ` object representing an array of time-domain electromagnetic moving transmitter loops. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` See definition from the :ref:`Moving Loop Ground TEM Rx ` object. The "Transmitters" ``uuid`` value should point to itself, while the "Receivers" ``uuid`` refers the linked :ref:`Moving Loop Ground TEM Rx ` object. .. _geoh5_gtem_loop_rx: Ground TEM Rx (large-loop) -------------------------- **UUID : {deebe11a-b57b-4a03-99d6-8f27b25eb2a8}** :ref:`Curve ` object representing an array of frequency-domain electromagnetic receiver dipoles. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` Dictionary of survey parameters shared with the :ref:`Transmitters `. The following items are core parameters stored under the "EM Dataset" key. - "Channels": ``list`` of ``double`` Time channels at which data are recorded. - "Input type": ``string`` "Tx and Rx" - "Property groups": ``list`` of ``uuid`` Reference to property groups containing data at every channel. - "Receivers": ``uuid`` Unique identifier referencing to itself. - "Survey type": ``string`` Defaults to "Ground TEM (large loop)". - "Transmitters": ``uuid`` Unique identifier referencing to the linked transmitters entity. - "Tx ID property": ``uuid`` Reference to a property containing the transmitter ID for every receiver. - "Unit": ``string`` Sampling units, must be one of "Seconds (s)", "Milliseconds (ms)", "Microseconds (us)" or "Nanoseconds (ns)". - "Waveform" ``dict``: - "Discretization" array of ``double``, shape(N, 2): Array of times and normalized currents (Amp) describing the source impulse over a discrete interval (e.g. [[t_1, c_1], [t_2, c_2], ..., [t_N, c_N]]) - "Timing mark" ``double``: Reference timing mark measured from the beginning of the "Discretization". Generally used as the reference (t_i=0.0) for the provided data channels: (-) on-time an (+) off-time. .. _geoh5_gtem_loop_tx: Ground TEM Tx (large-loop) -------------------------- **UUID : {17dbbfbb-3ee4-461c-9f1d-1755144aac90}** :ref:`Curve ` object representing an array of time-domain electromagnetic large transmitter loops. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` See definition from the :ref:`Ground TEM Rx (large-loop) ` object. The "Transmitters" ``uuid`` value should point to itself, while the "Receivers" ``uuid`` refers the linked :ref:`Ground TEM Rx (large-loop) ` object. .. _geoh5_afem_rx: Airborne FEM Rx --------------- **UUID : {b3a47539-0301-4b27-922e-1dde9d882c60}** :ref:`Curve ` object representing an array of frequency-domain electromagnetic receiver dipoles. Attributes ^^^^^^^^^^ :SurveyCost: ``double`` Datasets ^^^^^^^^ :Metadata: json formatted ``string`` Dictionary of survey parameters shared with the :ref:`Transmitters `. The following items are core parameters stored under the "EM Dataset" key. - "Channels": ``list`` of ``double`` Frequency channels at which data are recorded. - "Input type": ``string`` Type of survey from "Rx", "Tx" or "Tx and Rx" - "Loop radius": ``double`` Transmitter loop radius. - "Property groups": ``list`` of ``uuid`` Reference to property groups containing data at every channel. - "Receivers": ``uuid`` Unique identifier referencing to itself. - "Survey type": ``string`` Defaults to "Airborne TEM". - "Transmitters": ``uuid`` Unique identifier referencing to the linked transmitters entity. - "Unit": ``string`` Sampling units, must be one of ""Hertz (Hz)", "KiloHertz (kHz)", "MegaHertz (MHz)" or "Gigahertz (GHz)". - "Crossline offset property" ``uuid`` OR "Crossline offset value" ``double``: Offline offset between the receivers and transmitters, either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Inline offset property" ``uuid`` OR "Crossline offset value" ``double``: Inline offset between the receivers and transmitters, either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Yaw property" ``uuid`` OR "Yaw value" ``double``: Rotation (angle) of the transmitter loop as measured on the UV-plane (+ clockwise), either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Pitch property" ``uuid`` OR "Pitch value" ``double``: Tilt angle of the transmitter loop as measured on the VW-plane (+ nose up), either defined locally on vertices as a ``property`` OR globally as a constant ``value``. - "Roll property" ``uuid`` OR "Roll value" ``double``: Banking angle of the transmitter loop as measured on the UW-plane (+ right-wing down), either defined locally on vertices as a ``property`` OR globally as a constant ``value``. .. _geoh5_afem_tx: Airborne FEM Tx --------------- **UUID : {a006cf3e-e24a-4c02-b904-2e57b9b5916d}** :ref:`Curve ` object representing an array of frequency-domain electromagnetic transmitter loops. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` See definition from the :ref:`Airborne FEM Rx ` object. The "Transmitters" ``uuid`` value should point to itself, while the "Receivers" ``uuid`` refers the linked :ref:`Airborne FEM Rx ` object. .. _geoh5_gfem_rx: Moving Loop Ground FEM Rx ------------------------- **UUID : {a81c6b0a-f290-4bc8-b72d-60e59964bfe8}** :ref:`Curve ` object representing an array of frequency-domain electromagnetic moving receiver dipoles. Attributes ^^^^^^^^^^ :SurveyCost: ``double`` Datasets ^^^^^^^^ :Metadata: json formatted ``string`` Dictionary of survey parameters shared with the :ref:`Transmitters `. The following items are core parameters stored under the "EM Dataset" key. - "Channels": ``list`` of ``double`` Frequency channels at which data are recorded. - "Input type": ``string`` Type of survey from "Rx", "Tx" or "Tx and Rx" - "Loop radius": ``double`` Transmitter loop radius. - "Property groups": ``list`` of ``uuid`` Reference to property groups containing data at every channel. - "Receivers": ``uuid`` Unique identifier referencing to itself. - "Survey type": ``string`` Defaults to "Ground FEM". - "Transmitters": ``uuid`` Unique identifier referencing to the linked transmitters entity. - "Unit": ``string`` Sampling units, must be one of ""Hertz (Hz)", "KiloHertz (kHz)", "MegaHertz (MHz)" or "Gigahertz (GHz)". .. _geoh5_gfem_tx: Moving Loop Ground FEM Tx ------------------------- **UUID : {f59d5a1c-5e63-4297-b5bc-43898cb4f5f8}** :ref:`Curve ` object representing an array of frequency-domain electromagnetic moving transmitter loops. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` See definition from the :ref:`Moving Loop Ground FEM Rx ` object. The "Transmitters" ``uuid`` value should point to itself, while the "Receivers" ``uuid`` refers the linked :ref:`Moving Loop Ground FEM Rx ` object. .. _geoh5_gfem_loop_rx: Ground FEM Rx (large-loop) -------------------------- **UUID : {30928322-cf2c-4230-b393-4dc629259b64}** :ref:`Curve ` object representing an array of frequency-domain electromagnetic receiver dipoles. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` Dictionary of survey parameters shared with the :ref:`Transmitters `. The following items are core parameters stored under the "EM Dataset" key. - "Channels": ``list`` of ``double`` Frequency channels at which data are recorded. - "Input type": ``string`` "Tx and Rx" - "Property groups": ``list`` of ``uuid`` Reference to property groups containing data at every channel. - "Receivers": ``uuid`` Unique identifier referencing to itself. - "Survey type": ``string`` Defaults to "Ground FEM (large loop)". - "Transmitters": ``uuid`` Unique identifier referencing to the linked transmitters entity. - "Tx ID property": ``uuid`` Reference to a property containing the transmitter ID for every receiver. - "Unit": ``string`` Sampling units, must be one of ""Hertz (Hz)", "KiloHertz (kHz)", "MegaHertz (MHz)" or "Gigahertz (GHz)". .. _geoh5_gfem_loop_tx: Ground FEM Tx (large-loop) -------------------------- **UUID : {fe1a240a-9189-49ff-aa7e-6067405b6e0a}** :ref:`Curve ` object representing an array of frequency-domain electromagnetic large transmitter loops. Datasets ^^^^^^^^ :Metadata: json formatted ``string`` See definition from the :ref:`Ground FEM Rx (large-loop) ` object. The "Transmitters" ``uuid`` value should point to itself, while the "Receivers" ``uuid`` refers the linked :ref:`Ground FEM Rx (large-loop) ` object. Magnetotellurics ---------------- **UUID : {b99bd6e5-4fe1-45a5-bd2f-75fc31f91b38}** :ref:`Points ` object representing a magnetotelluric survey. :Metadata: json formatted ``string`` Dictionary of survey parameters. The following items are core parameters stored under the "EM Dataset" key. - "Channels": ``list`` of ``double`` Frequency channels at which data are recorded. - "Input type": ``string`` Static field set to "Rx only" - "Property groups": ``list`` of ``uuid`` Reference to property groups containing data at every channel. - "Receivers": ``uuid`` Reference to itself. - "Survey type": ``string`` Static field set to "Magnetotellurics" - "Unit": ``string`` Sampling units, must be one of "Hertz (Hz)", "KiloHertz (kHz)", "MegaHertz (MHz)" or "Gigahertz (GHz)". .. _geoh5_tipper_receivers: Tipper Rx --------- **UUID : {0b639533-f35b-44d8-92a8-f70ecff3fd26}** :ref:`Curve ` object representing a tipper survey. :Metadata: json formatted ``string`` Dictionary of survey parameters. The following items are core parameters stored under the "EM Dataset" key. - "Channels": ``list`` of ``double`` Frequency channels at which data are recorded. - "Input type": ``string`` Static field set to "Rx and base stations" - "Property groups": ``list`` of ``uuid`` Reference to property groups containing data at every channel. - "Receivers": ``uuid`` Reference to itself. - "Base stations: ``uuid`` Reference to :ref:`Tipper Base stations ` - "Survey type": ``string`` Static field set to "Magnetotellurics" - "Unit": ``string`` Sampling units, must be one of "Hertz (Hz)", "KiloHertz (kHz)", "MegaHertz (MHz)" or "Gigahertz (GHz)". .. _geoh5_tipper_base_stations: Tipper Base stations -------------------- **UUID : {f495cd13-f09b-4a97-9212-2ea392aeb375}** :ref:`Points ` object representing a tipper survey. :Metadata: json formatted ``string`` See definition from the :ref:`Tipper Rx ` object. The "Base stations" ``uuid`` value should point to itself, while the "Receivers" ``uuid`` refers the linked :ref:`Tipper Rx ` object. Airborne Gravity ---------------- **UUID : {b54f6be6-0eb5-4a4e-887a-ba9d276f9a83}** *Not yet geoh5py implemented* *To be further documented* Airborne Magnetics ------------------ **UUID : {4b99204c-d133-4579-a916-a9c8b98cfccb}** *Not yet geoh5py implemented* *To be further documented* Ground Gravity -------------- **UUID : {5ffa3816-358d-4cdd-9b7d-e1f7f5543e05}** *Not yet geoh5py implemented* *To be further documented* Ground Magnetics ---------------- **UUID : {028e4905-cc97-4dab-b1bf-d76f58b501b5}** *Not yet geoh5py implemented* *To be further documented* Ground Gradient IP ------------------ **UUID : {68b16515-f424-47cd-bb1a-a277bf7a0a4d}** *Not yet geoh5py implemented* *To be further documented*