Tags: megies/obspy
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ObsPy 1.0.0
Changelog:
1.0.0: (doi: 10.5281/zenodo.46151)
- General:
* Requirements have been increased to reflect latest distributions:
* Removed support for Python 2.6.
* Added support for Python 3.5.
* matplotlib >= 1.1.0 is now required.
* numpy >= 1.6.1 is now required
* scipy >= 0.9.0 is now required
* Reorganized the submodule structure. We provide a deprecation path so the
old imports will continue to work for one ObsPy version.
* Consistent naming scheme across the code base. This results in some
functions having different names. Most things that worked with ObsPy 0.10
will continue to work with this version, but starting with the next
version they will fail. Pay attention to the deprecation warnings.
* Support for additional waveform data formats:
- Read support for the ASCII format for waveforms from the K-NET and
KiK-net strong-motion seismograph networks.
* Support for additional event data formats:
- CMTSOLUTION files used by many waveform solvers.
- ESRI shapefile write support, useful in GIS applications (see obspy#1066)
- Google Earth KML output.
* Support for additional station data format:
- The FDSN web service station text format can now be read.
- Read support for the NIED's moment tensor TEXT format (see obspy#1125)
- Google Earth KML output.
- Read support for SeisComP3 inventory files.
- obspy.core:
* New method for generating sliding windows from Stream/Trace windows.
(see obspy#860)
* Stream/Trace.slice() now has the optional `nearest_sample` argument from
Stream/Trace.trim().
* Trace.remove_response() now has `plot` option to show/output a plot of all
individual steps of instrument response removal in frequency domain
(see obspy#1116).
* New method Stream/Trace.remove_sensitivity() to remove instrument
sensitivity
* Fix incorrect parsing of some non-ISO8601 date/time strings. (see obspy#1215)
* Added plotting method to Event (customizable subplots from a selection
of map, beachball and farfield radiation plots, see obspy#1192)
- obspy.clients.fdsn:
* Replace FDSN webservice shortcut `NERIES` with `EMSC` and deprecate the
`NERIES` shortcut, will be removed in a future release (see obspy#1146).
* Now requests gzipped data for the XML files. Much smaller files!
* The station service can now also be used to download files in the text
format. This has limited information but is much faster.
* New mass downloader to assist in downloading data across a large number
of FDSN web services.
* Catch invalid URLs when initialising Client and avoid confusing error
messages (see obspy#1162)
- obspy.clients.filesystem.sds:
* New client to read data from local SDS directory structure (see obspy#1135).
* Command line script `obspy-sds-report` to generate html page with
information on latency, data availability percentage and number of gaps
for a local SDS archive (see obspy#1202)
- obspy.clients.neries:
* Removed the dedicated client. Data can still be accessed by using the FDSN
client.
- obspy.clients.syngine:
* New client for the IRIS Syngine service to retrieve custom synthetic
seismograms.
- obspy.imaging:
* Experimental support for Cartopy when plotting maps. Use the `method`
argument to functions that plot maps to select between Basemap or Cartopy.
* New default colormap for all plots. A backport of the new viridis colormap
from matplotlib is available for those using older matplotlib releases.
* Added plotting routines for farfield radiation patterns of moment tensors
- obspy.io.kml:
* New module for Google KML output of Inventory and Catalog objects
(e.g. for use in Google Earth)
- obspy.io.mseed:
* Upgrade to libmseed 2.16
- obspy.io.seiscomp.sc3ml:
* New module reading SeisComP3 inventory files to ObsPy inventory objects
(see obspy#1182).
- obspy.io.shapefile:
* New module for ESRI shapefile write support (see obspy#1066)
- obspy.io.stationtxt:
* New module reading the FDSN station files.
- obspy.signal:
* Switch to second-order sections for filters; backported from SciPy 0.16.0
(see obspy#1028)
* New Lanczos interpolation/resampling (see obspy#1101)
* Higher order detrending methods (see obspy#1173)
* PPSD (see obspy#931, obspy#1108, obspy#1130, obspy#1187):
- Algorithm for PSD computation was improved, especially affecting results
at long periods (for detailed discussion see obspy#931 and obspy#1108).
- Keywords `paz` and `parser` were removed in favor of new keyword
`metadata`. PPSD now accepts `metadata` in a much wider range
of formats:
* Inventory objects (e.g. from StationXML or from FDSN webservice)
* obspy.io.xseed Parser objects (e.g. from dataless SEED file)
* filename of a RESP file
* dictionary with poles and zeros information (like in
prior versions)
Most old codes should still work, issuing a deprecation warning, but
old code that specifies *both* `paz` and `parser` keywords will raise
an exception.
- Whenever possible (i.e. when using for `metadata` an Inventory,
a Parser or a RESP file), response calculation now takes into account
the full response (all stages) as opposed to only using the poles and
zeros response stage (as was done in previous versions when using a
Parser object). When using a poles and zeros dictionary response
calculation is unchanged (as no information on other stages is
available, of course).
- PPSD now stores the psd for each time segment that gets processed,
instead of only storing the stacked histogram. That way, differing
custom stacks with various selection criteria (e.g. time of day, by
weekday, etc.) can now be made from the same processed data
(see obspy#1130).
- New save/load mechanism using numpy .npz binary format that circumvents
some problems with the old pickle mechanism:
`PPSD.save_npz()` and `PPSD.load_npz()` (and `PPSD.add_npz()` to add
data from additional npz files)
- Change default colormap to new obspy default sequential colormap
(matplotlibs new viridis colormap). The old PQLX colormap is provided by
`obspy.imaging.cm.pqlx` and can be used with
`PPSD.plot(..., cmap=...)`.
- new option `PPSD.plot(..., cumulative=True)` for a cumulative plot of
the histogram, i.e. a non-exceedence percentage visualization, similar
to the `percentile` option.
- x axis in `PPSD.plot()` can be switched to frequency in Hz with
`PPSD.plot(..., xaxis_frequency=True)` (see obspy#1130)
- changes to special handling of rotational: now handled by kwarg
`special_handling="ringlaser"` (kwarg `is_rotational_data` is
deprecated, see obspy#916)
- special handling option for hydrophone data (no differentiation, see
obspy#916)
- bin width on frequency axis can now be controlled using
`PPSD(..., frequency_bin_width_octaves=...)` (in fractions of octaves,
default is the old fixed setting of 1/8 octaves as in PQLX)
- obspy.taup
* Added support for nd file format for input velocity models. Allows for
named discontinuities at arbitrary depths allowing for less Earth like
models (see obspy#1147).
* Added three methods (`get_travel_times_geo()`, `get_pierce_points_geo()`
and `get_ray_paths_geo()`) to `TauPyModel` to handle station and
event location data as latitude and longitude, instead of the source to
station distance in degrees. In addition `get_ray_paths_geo()` and
`get_pierce_points_geo()` decorate the returned pierce points and ray
paths with the latitude and longitude of each point. Some functionality
needs the `geographiclib` module to be installed. (See obspy#1164.)
* ObsPy now ships with a bunch of new velocity models in addition to the
existing ones: `prem`, `sp6`, `1066a,b`, `herrin` (See obspy#1196).
* Add support for buried receivers (see obspy#1103.)
* Port more accurate calculation of ray parameter from Java. The effect is
stronger for longer phases, but also corrects issues with shorter body and
surface waves (see obspy#986.)
* Fix incorrect branch splitting which also caused issues for extremely
shallow phases (see obspy#1057.)
* Proper cache for model splits resulting in much faster calculations if
the source depth is repeatedly the same (see obspy#1248).
0.10.3: (doi: 10.5281/zenodo.46150)
- obspy.core:
* Fix reading of multiple catalog files using globs (see obspy#1065).
* Fixed a bug when using
`Trace.remove_response(..., water_level=None)`.
With that setting that is supposed to not use any water level
stabilization in the inversion of the instrument response
spectrum actually the instrument response was never inverted and
thus instead of a deconvolution a convolution was performed
(see obspy#1104).
* Fixing floating point precision/rounding issue with UTCDateTime when
initializing with floating point seconds, i.e. with microseconds,
that could lead to microseconds being off by 1 microsecond
(see obspy#1096)
* Correct gap/overlap time returned by Stream.get_gaps() and printed
by Stream.print_gaps() which was incorrect by one time the sampling
interval (see obspy#1151)
* Stream.get_gaps(): return overlaps specified in units of samples
as negative integers (see obspy#1151)
- obspy.fdsn:
* More detailed error messages on failing requests (see obspy#1079)
* Follows redirects for POST requests (see obspy#1143)
- obspy.imaging:
* fix some bugs in `obspy-scan` (see obspy#1138)
- obspy.mseed:
* Blockette 100 is now only written for Traces that need it. Previously
it was written or not for all Traces, depending on whether the last
Trace needed it or not. (see obspy#1069)
* Fixed a bug that prevented microsecond accuracy for times before 1970
(see obspy#1102).
* Updated to libmseed 2.17.
- obspy.signal:
* Bug fixed within rotate.rotate2zne(). Additionally it can now also
perform the inverse rotation (see obspy#1061).
* Bug fixed in triggering. When using option `max_len_delete` and a trigger
occurred right before the end of data, one trigger was potentially lost
(see obspy#1145 for details).
- obspy.station:
* Plotting responses across multiple channels is more robust now in
presence of some strange channels (e.g. with zero sampling rate,
happens e.g. for state of health channels, see obspy#1115)
* ObsPy no longer assumes that the StationXML namespace is the default
namespace (see obspy#1060).
* Checking if a file is a StationXML file is less rigorous (and much
faster) now (not checking strict validity against xsd schema but
only looking for a FDSNStationXML root element, see obspy#1114).
This means that `read_inventory()` without explicitly specified
format will correctly detect more files as StationXML that have very
slight breaches of the schema but still can be interpreted as
StationXML.
* fix saving `xcorrPickCorrection()` results to an image file (see obspy#1154)
- obspy.taup:
* Calculating arrival times for surface waves now works (see obspy#1055)
* Calculating arrivals for underside reflections now works (see obspy#1089)
- obspy.y:
* correct misspelled name of a Y specific header field (see obspy#1127)
- obspy.zmap
* Add support for time values with sub-second precision (see obspy#1093)
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