Grib Api Examples

When compiling GDL from source, you need to specify the --with-grib option to the configure script. When you change your account password, your SMTP and API access will change as well. grib v2 (grib2) common, fixes limitations of grib1, compression. Pfaltzgraff Winterberry Sugar and Creamer Set USA NEW IN THE BOX,Nuevo 6x Tapón Lavabo Cromado 44mm 4. In this page you will find explanations and examples showing how to use the CDS API In this page you will find explanations and examples showing how to use the CDS API. In GRASS, there are two types of data extents: map and computational regions. Upload 60+ types of data, sound, text, and other files to Wolfram|Alpha Pro for automatic analysis and computation. The module is a Python 3 interface to the GRIB API C library from the European Centre for Medium-Range Weather Forecasts (ECMWF). GNU Wget is a freely available network utility to retrieve files from the World Wide Web, using HTTPS (Hyper Text Transfer Protocol Secure) and FTP (File Transfer Protocol), the two most widely used Internet protocols. Up until the middle of 2018 the map on this page was based on the Google map API (Application Program Interface). Here is how Cygwin secures the installation and update process to counter man-in-the-middle (MITM) attacks: The Cygwin website provides the setup program (setup-x86. WebConcepts Downloading a GRIB file to iPhone from Iridium Go using. GRIB is a gridded data standard from WMO (World Meteorological Organisation) and is used by many meteorological organisation. This procedure was tested with the WRF model Version 3. The high level API is designed to support a GRIB engine for xarray and it is inspired by netCDF4-python and h5netcdf. There are python grib readers out there (pygrib for example). Where to save the grib file, defaults to the current directory. Alternatively, you can use Event Grid with Logic Apps to process data anywhere, without writing code. Some of the second-generation GRIB are used for derived product distributed in Eumetcast of Meteosat Second Generation. [pyngl-talk] how to use the new MRMS grib codetable LANG, TIMOTHY J. Standard compression algorithms are very, very good at compressing repeated bytes of data. 5 degrees longitude; a profile point requested at 359. All the values of the keys belonging to a namespace can be printed with the -n option of grib_ls or with the keys iterator provided by the library. Negative values correspond to S and W. Warning: Searching for data within multi-field grib messages does not work using an index (and is not supported by the GRIB API library). I want to read a Grib2 file using the Java. 2 requires the GRIB_API library. CDO installed directly from binary files does not have a good support for netcdf4 files. On that file, every record was at least a factor or 2 smaller for bzip2 and 7zip compression, than the GRIB record size. Here is how Cygwin secures the installation and update process to counter man-in-the-middle (MITM) attacks: The Cygwin website provides the setup program (setup-x86. The temporal resolution of the images is 6 hours by default. GRIB2 Encoding Details for the National Weather Service Digital Forecast Database Background. This dataset contains forecasted data from the European Flood Awareness System (EFAS) for river discharge, for the main rivers in Europe and neighbouring areas. Api --version 0. What does this mean? > That means it is in a module (one named grib_api). The GRIB_GETDATA function returns the key/value pairs associated with a requested record in the form of an ORDEREDHASH. GRIB API is now installed on your system. MongoDB and JSON. Quick Navigation: Introduction Tutorial Module Reference The Image Module The ImageDraw Module Tools Reference. The library handles several grib tables simultaneously. For examples of using the data check out the examples repository. This is why you must include Log4Jin your classpath. CDO requires NetCDF, GRIB_api, HDF5, PROJ. In the example above a domain over Europe. On this page. Use at your own risk. A useful set of command line tools is also included. Could the new Grib2 plugin accomodate translations made by CDO?. In this case, the data is assumed to be identically distributed across the folds, and the loss minimized is the total loss per sample, and not the mean loss across the folds. Power in your hands. pynio: for reading GRIB and other geoscience specific file formats. The ECMWF routines exposed in IDL are fairly low-level, so they require a bit of programming to extract even simple information from a GRIB file. Iris GRIB interface 2016-12-28: iris_sample_data: public: Iris sample data. Pfaltzgraff Winterberry Sugar and Creamer Set USA NEW IN THE BOX,Nuevo 6x Tapón Lavabo Cromado 44mm 4. cftime: recommended if you want to encode/decode datetimes for non-standard calendars or dates before year 1678 or after year 2262. For example, a few days after the release of wgrib2 v2. There is a collection of plugins ready to be used, available to download. 9 degrees longitude will cause this warning even though it is within the global GFS model domain. 2: 3: AC_DEFUN([_AM_AUTOCONF_VERSION],[]) 4: 5: AC_PREREQ([2. Examples of copygb 12 GRIB format. Grab is a Singapore-based technology company offering ride-hailing transport services, food delivery and payment solutions. At the time of this writing, g2lib is a version 1. Parallel grib2 in NCEP POST Jun Wang Acknowledgment: Krishna Kumar, Boi Vuong, Robert Grumbine, Michelle Mainelli, Mark Iredell, Hui-ya Chuang, Manuel Pondeca, Vera Gerald Introduction Changes are made into NCEP POST to add an option to generate grib2 output files. Iris GRIB interface 2016-12-28: iris_sample_data: public: Iris sample data. h /usr/include/grib_api_ecbuild_config. Features with development status Beta: enables the engine='cfgrib' option to read GRIB files with xarray,. Tutorials showing how to use various compatible clients Tutorials on integrating the NDFD Web Service and clients like ArcGIS, Google Earth, and Google Maps. Upgrades to supporting libraries NetCDF for Java API has been upgraded to version 4. This allows nctoolbox to access NetCDF , OPeNDAP , HDF5 , GRIB, GRIB2, HDF4 and many (15+) other file formats and services using the same API. Version-Release number of selected component (if applicable): 1. The ECMWF GRIB API is an application program interface accessible from C, FORTRAN and Python programs developed for encoding and decoding WMO FM-92 GRIB edition 1 and edition 2 messages. GRIB API is an API developed at ECMWF to decode and encode GRIB edition 1 and 2 data. The ECMWF GRIB API is an application program interface accessible from C and FORTRAN programs developed for encoding and decoding WMO FM-92 GRIB edition 1 and edition 2 messages. Below is a example of python script I wrote to retrieves zonal wind, meridional wind and temperature data at all pressure levels during the time period 2017-07-01 to 2017-07-31 in 6-hour intervals:. GRIB is the the World Meterological Organization (WMO) standard for distributing gridded data. chromium / chromium / src / master /. AssertValidEnvironment() Here are the examples of the csharp api class Grib. The definition is N/W/S/E in degrees longitude and latitude (see API manual). The template already has the metadata. GRIB is designed to be processed using machines, not directly by humans. Alternatively, to compile and run the example yourself, consult the example index. py,它就会开始向服务器提交请求了,如果一切顺利你就可以在你所设置的保存目录下看到你可爱的数据文件了。至此,你已经可以成功地进行批量下载ECMWF. There is also an example palette file used to color the data. For example, all of the symbols which start with "grib". Name Short Name Units Parameter ID GRIB1 GRIB2 NetCDF. This is the preferred method. How to use libcurl. They allow for the visualization of a great amount of weather data in a compact file. Like JSON, BSON sup­ports the em­bed­ding of doc­u­ments and ar­rays with­in oth­er doc­u­ments and ar­rays. exe) using HTTPS (SSL/TLS). /usr/include/grib_api. Each field of a section is described in the definition by an offset. Functionality includes GRIB. Quick Navigation: Introduction Tutorial Module Reference The Image Module The ImageDraw Module Tools Reference. This module make some of our grib files available for access and download. Get Started Browse APIs. The API Documentation contains details about the different endpoints, return types, parameters and model schemas, as well as example code samples and responses. 0-3 How reproducible: Every time. The zyGrib website has animated samples that can be viewed at the website and also downloaded and opened in zyGrib GRIB file viewer locally to test if the application is working correctly. Learn more. h /usr/include/grib_api_f77. - -n 4 (4 CPU support) (only for fimex-operations, not IO or compression) (OpenMP based) - Parallel fimex-tasks to many files, join files at the end ·It is possible to fill a file with information e. These toolboxes can be installed in your home directory, they do not need to be installed into the system-wide folders. I know there must be a very simple way to do this, but I can't seem to find any example or documentation. After installation I tried to check some GRIB API examples from your website in python, but I'm. Commonly used in meteorology to store historical and forecast weather data. For example, if you wanted the temperature for all pressure levels within a grib file, you would have to read in each temperature record at each level separately. In general, the weather parameters in the NDFD will be ground-based, sensible weather elements. You can use tools from the Multidimension Tools toolbox to create a raster layer, a feature layer, and a table view from a netCDF file. 5 degree GFS has nodes from 0 to 359. [1] European Petroleum Survey Group. If you're not sure which to choose, learn more about installing packages. Converting Meteorological Data for HYSPLIT. For example, consider the variable TMP (temperature). GRIB is designed to be processed using machines, not directly by humans. Third parties providing GRIB data to sailors have developed many viewers. oordinateSystem class provides functionsto map between the WCS and the ACS. jar library to read the Grib files and to make netCDF objects/files. o grib_itrie. Commonly used in meteorology to store historical and forecast weather data. NetCDF data from WRF and CMAQ model output are also supported. c: it just checks for the image to be oriented consistently with the order forced in grib2api. Example: Plot data from the NOMADS Data Server or a local NetCDF file. NETCDF4_CLASSIC: Data is stored in an HDF5 file, using only netCDF 3 compatible API features. Log4Jin you own code JGRIB will silently turn off logging. This free app from PredictWind allows the seamless downloading of multiple GRIB files for your coastal or offshore passage. For example, unreasonable vorticity may be due to missing grid spacing fields (dx,dy) in the model. -- Note: the file can be read with the ECMWF grib_api if this is available to you. Default 'NETCDF4', which means the data is stored in an HDF5 file, using netCDF 4 API features. How to build them from source or perhaps how the curl project accepts contributions. GRIB is the the World Meterological Organization (WMO) standard for distributing gridded data. GRIB superseded the Aeronautical Data Format. We have a table called 'userdetails' and if we run a query to select all the records of the table, we get data in JSON format. o grib_itrie. message In this module: • GribMessage • Section Defines a lightweight wrapper class to wrap a single GRIB message. GRIB Importer Directory: wintx-importers/grib/ PyPI: WintxImporter-Grib; Wintx importer for the GRIdded Binary file format, contains an importer library and a script for digesting. The ECMWF API for encoding and decoding WMO FM-92 GRIB edition 1 and edition 2 messages. idl can write grib1 and grib2 files as of version 8. On that file, every record was at least a factor or 2 smaller for bzip2 and 7zip compression, than the GRIB record size. NET is a C# library for reading and writing GRIB 1 and 2 files. Azure Event Grid is a fully-managed event routing service and the first of its kind. out input_file Converts all records in the input file to ascii and writes the output to wgrib. When installing through MacPorts, and if you need Python bindings, you must run: sudo…. A GridLayout object places components in a grid of cells. Apparently there is GribCS, an open source library available on SourceForge that you could use to process GRIB files. Grib datasets collect compressed weather forecasting data into a very small file that is rapidly transmitted anywhere in the world. This software is the GRIB_API (Application Programming Interface) library. Apex code to find record diff between two dates (to call API only when needed) Print the last, middle and first character of your. Power in your hands. Wrapper function around basic pygrib. This data set is not required to run GraDS. Since your application will have only one Events Request URL, you'll need to do any additional dispatch or routing server-side after receiving event data. But that year Google started charging $$$ for its API use on popular web maps that got a high volumn of hits. exe) using HTTPS (SSL/TLS). GRIB is a gridded data standard from WMO (World Meteorological Organisation) and is used by many meteorological organisation. This module make some of our grib files available for access and download. The temporal resolution of the images is 6 hours by default. Variations in the way pressure level fields can be stored, and in the parameter IDs used for each field, mean that. For example, consider the variable TMP (temperature). On this page. Worked as an assistant/analyst. The National Weather Service (NWS) is creating a National Digital Forecast Database (NDFD) which will contain gridded forecasts of several weather elements. message In this module: • GribMessage • Section Defines a lightweight wrapper class to wrap a single GRIB message. This package also contains the cnvgrib1to2, grib_list, grib_repack, and cnvgrib2to1 scripts. Low level access and decoding is performed via the ECMWF ecCodes library. rename() Method - Python method rename() renames the file or directory src to dst. This article has only scratched the surface of the Google Web API. The most profitable and fair HBPPS*. cnvgrib converts every GRIB message in a file to one GRIB edition to another. Kolstad on 21 February, 2017 I just upgraded my MacPorts to Mac OS Sierra and expected some problems. All options are controlled with an XML configuration file. GRIB scientific data file format. Your votes will be used in our system to get more good examples. It also contains a patch to the "GRIB API stepUnits error" when reading gribs : with stepUnits below 1 hour. You can create your own samples and change/add the environment variable GRIB_SAMPLES_PATH to point to them. As an example, if I want to process a GRIB file containing global meteorological fields from a climate model containing only one timestep, I would use the following: # This ecCodes command splits the GRIB file "model_output+000000" into different # vertical levels. Opencpn Grib_pi Downloads using zygrib username and password is no longer available, so this download feature appears to be broken and should be fixed. jar library to read the Grib files and to make netCDF objects/files. Terms and conditions may apply, please check with each individual dataset. GRIB metadata is captured as per-band metadata and used to set band descriptions, similar to this:. x) library routines for reading information from a GRIB file. of the GRIB format use various codes to identify the variables and levels in the GRIB file. oordinateSystem class provides functionsto map between the WCS and the ACS. At the very least, you'll find it very helpful for debugging. net dictionary. GRIB is a format commonly used in meteorology to store weather data. Download files. NET makes it easy to encode and decode. NETCDF3_64BIT: 64-bit offset version of the netCDF 3 file format, which fully supports 2+ GB files, but is only compatible with clients linked against netCDF version 3. o grib_dependency. jar library to read the Grib files and to make netCDF objects/files. However, when the data grid selection changes to the empty row at the bottom, the column's read-only state is toggled to allow the user to add a new Customer row. Where to save the grib file, defaults to the current directory. Ungrib is unable to understand this hybrid GRIB format. The latest version of NetCDF , version 4, is based on HDF5. Worked as an assistant/analyst. I wrote the following python code (the variable "token" in the code is the API token. o grib_handle. intuitive and useful for my workflow. The OpenVR Unity integration doesn’t refer to any specific hardware when presenting axis and button states. Some useful command-line tools are provided with the API package and I was able to use these to query and “slice and dice” the MERA GRIB files. This allows nctoolbox to access NetCDF , OPeNDAP , HDF5 , GRIB, GRIB2, HDF4 and many (15+) other file formats and services using the same API. 编辑好脚本以后,保存为py文件,例如我把它保存为example_download. Grace is a Motif application for two-dimensional data visualization. GRIB API is an API developed at ECMWF to decode and encode GRIB edition 1 and 2 data. You can rate examples to help us improve the quality of examples. NET is a C# wrapper around the European Centre for Medium Range Weather Forecasting's powerful grib_api, a C library for reading, writing, and converting GRIB1 and GRIB2 files. For example it is equivalent get shortName or parameter. Ruby on Rails has been popularizing both concepts along with a variety of other controversial points since the beginning. For example, a few days after the release of wgrib2 v2. no significantly more accurate, at least for my area of SW Norway. These plugins can also be installed directly from the QGIS Plugin Manager within the QGIS application. 1 For projects that support PackageReference , copy this XML node into the project file to reference the package. If b is None and there are no kwargs, this toggles the visibility of the lines. In this example, I used Saildocs and sent the following email to [email protected] PredictWind Offshore App for PC. grb2 14 of 174 total grib messages in 1 files. o grib_dependency. The recommended way to store xarray data structures is netCDF, which is a binary file format for self-described datasets that originated in the geosciences. Chocolatey is trusted by businesses to manage software deployments. Plugin API usage examples can be found in the API doc headers of. GRIB is used by the world's largest operational meteorological centers (NMC and ECMWF) for gridded data because it allows the data to be efficiently packed and thus moved from one site to another. Raw or compressed GRIB Data (gzip *. So my question is, how to get it working again?. Note: this package has now been replaced by ecCodes which is a superset of GRIB API. selection of keys given out depends on the first field and is different for GRIB1 and GRIB2 and may change with GRIB_API version. Therefore, specialized software is required in order to work with it. This procedure was tested with the WRF model Version 3. Convert an iterable of GRIB messages into an iterable of (Cube, Grib message) tuples. 0 built for that compiler and openmpi library. A publisher is the service or resource that originates the event. The ECMWF Web API enables you to programmatically request and retrieve data via HTTP from the ECMWF data archive for use in your web, mobile, or desktop applications. The temporal resolution of the images is 6 hours by default. Your votes will be used in our system to get more good examples. Negative values correspond to S and W. Ugrib – Ugrib is a no cost graphical GRIB viewer designed for reading GRIB1 files. What to name the grib file, defaults to "fcst. We have a table called 'userdetails' and if we run a query to select all the records of the table, we get data in JSON format. A useful set of command line tools is also included. grb2 14 of 174 total grib messages in 1 files. For example, the following command in your terminal would download ERA5 images for all available layers of soil moisture in netcdf format, between January 1st and February 1st 2000 in grib format into /path/to/storage. Xarray is an open source project and Python package that extends the labeled data functionality of Pandas to N-dimensional array-like datasets. In this version of HGrib, a read-only monadic Haskell interface to GRIB API is provided. The content is made to support yachts and yachting. Chocolatey is trusted by businesses to manage software deployments. There are also the extremely useful ECMWF grib tools available from the command line. open() functionality, patching a GRIB API bug at the time of writing: this script (early 2017ish), where it seems to lack the decoding ability for stepUnits below 1 hour. That is, instead of reading one record/variable at a time as required by pygrib, Nio gathers all of those variables that have the same dimensions. In Python, there is no need for importing external library to read and write files. Line 1: dnl Process this file with autoconf to produce a configure script. Windows 10 Offshore App 5. Since Wget is a non-interactive downloading utility, you can execute scripts containing Wget commands. Note: this package is in the process of being replaced by ecCodes which is a superset of GRIB API. To work with WAVEWATCH III ® GRiB, any standard tools which read GRiB will work. If you're not sure which to choose, learn more about installing packages. 9rc4 is configured with support for GRIB files built in. Learn how to use curl. 1 and ERA5 data. GRIB2 Reads and Writes Examples. Here are a selection of files from models developed at Meteorological Institute. NETCDF3_64BIT: 64-bit offset version of the netCDF 3 file format, which fully supports 2+ GB files, but is only compatible with clients linked against netCDF version 3. GRIB: German Resources in Britain • German Resources in Britain (GRIB) is a network of organisations committed to increasing awareness of the rich variety of German language resources in Britain. gov Thu Jul 2 15:41:14 MDT 2015. grib_api is built by NSC following the ECMWF documentation. Delivering your transactional and marketing email through one reliable platform. For example, as the text data server only stores the past 3 days of data, and as such is not intended to support historical data access, one might build a client application that automatically contacts the text data server at regular intervals to obtain records of interest and store them locally, thus building their own history. Dark Sky API — Overview. It has been described as a “contract” between the client and the server, such that if the client makes a request in a specific format, it will always get a response in. 3, the pnglib was upgraded to fix a seg-fault when reading a specially crafted png file. The example json message used contains most of the features that a json message could contain. The ECMWF API for encoding and decoding WMO FM-92 GRIB edition 1 and edition 2 messages. This is why you must include Log4Jin your classpath. Here's an example of the file format (individual components are bracketed with "< >"):. no significantly more accurate, at least for my area of SW Norway. The following example shows how MongoDB stores data in JSON format. I found some info on a post here. sudo apt-get install scons sudo apt-get install libnetcdf-dev sudo apt-get install netcdf-bin sudo apt-get install libboost_filesystem-dev sudo apt-get install libboost_system-dev sudo apt-get install ncurses-dev # If you plan on reading GRIB files: sudo apt-get install grib_api-dev # If you plan on visualizing the results (a good idea!): sudo apt-get install python-numpy sudo apt-get install. An API is only as good as its documentation, which is why a series of interactive code examples in multiple languages are waiting for you. Many models that we use are OpenSource - WRF model, for example. This module contains python interfaces for reading and writing GRIB data using the ECMWF GRIB API C library, and the NCEP GRIB2 C library, as well as command-line utilites for listing and re-packing GRIB files. 5|0,12,,72|. Example 4 In this example, we want to take some grib files, extract the 200, 500 and 700 height fields, convert to a regional subset and finally convert it into a netcdf file. For example, all of the symbols which start with "grib". GRIB1 and GRIB2 uses the same function call. For example, as the text data server only stores the past 3 days of data, and as such is not intended to support historical data access, one might build a client application that automatically contacts the text data server at regular intervals to obtain records of interest and store them locally, thus building their own history. GRIB is designed to be processed using machines, not directly by humans. It shares a similar API to NumPy and Pandas and supports both Dask and NumPy arrays under the hood. GRIB is the the World Meterological Organization (WMO) standard for distributing gridded data. grb' ) pygrib open instances behave like regular python file objects, with seek, tell, read, readline and close methods, except that offsets are measured in grib messages instead of bytes:. Example: wgrib2 IN. Python client for ECMWF web services API. This is why you must include Log4Jin your classpath. rename() Method - Python method rename() renames the file or directory src to dst. IDL's GRIB routines are a thin layer on top of the the C version of the ECMWF GRIB API. oordinateSystem class provides functionsto map between the WCS and the ACS. no/weatherapi is an interface to a selection of data produced by MET Norway. In this version of HGrib, a read-only monadic Haskell interface to GRIB API is provided. Further documentation and examples are under development. For example, the following command in your terminal would download ERA5 images for all available layers of soil moisture in netcdf format, between January 1st and February 1st 2000 in grib format into /path/to/storage. iris-grib Documentation, Release 0. AssertValidEnvironment() taken from open source projects. Learn how to use curl. grib_count. The variable depends on the grib number, the grib table and the originating center. I found some issues in reading GRASS raster data. Example of using XyGrib to download a GFS wind and pressure map. GRIB helper library routines A set of four higher-level (higher than the GRIB API in IDL 8. You can use it to describe any task where some files must be updated automatically from others whenever the others change. The vibrant Tcl user community provides a variety of support resources to help working with Tcl/Tk. CDF to Grib. GRIB is designed to be processed using machines, not directly by humans. For example, you can restrict searching to a Web site, filter for a specific document type, and limit the date range, all in the same query string. Example of using XyGrib to download a GFS wind and pressure map. To use pygrib on Windows, you must use the Cygwin environment, since the grib_api library requires a posix environment. For this example, we will be plotting potential temperature, relative humidity, and tangential/normal winds. Wrapper function around basic pygrib. o grib_errors. gov Thu Jul 2 15:41:14 MDT 2015. A vector of latitudes and longitudes that specify the area to return a forecast for. Chocolatey is software management automation for Windows that wraps installers, executables, zips, and scripts into compiled packages. el6: * should fix your issue, * was pushed to the Fedora EPEL 6 testing repository, * should be available at your local mirror within two days. Definition of GRIB in the Definitions. Gulhovedet Grib oversættelse i ordbogen dansk - tysk på Glosbe, online-ordbog, gratis. Kolstad on 21 February, 2017 I just upgraded my MacPorts to Mac OS Sierra and expected some problems. Features with development status Beta: enables the engine='cfgrib' option to read GRIB files with xarray,. Examples of converting GRIB files. Upload 60+ types of data, sound, text, and other files to Wolfram|Alpha Pro for automatic analysis and computation. NCEP often puts u and v winds together in a single multi-field grib message. iris-grib Documentation, Release 0. US also aims to provide education on the prudent and safe use of GRIB data for forecasting weather. The ECMWF GRIB API is an application program interface accessible from C and FORTRAN programs developed for encoding and decoding WMO FM-92 GRIB edition 1 and edition 2 messages. These files will give you very good information about weather, currents and waves. Could the new Grib2 plugin accomodate translations made by CDO?. Build cdo-1. For example, the following command in your terminal would download ERA5 images for all available layers of soil moisture in netcdf format, between January 1st and February 1st 2000 in grib format into /path/to/storage. o grib_handle. 9 degrees longitude will cause this warning even though it is within the global GFS model domain. GribEnvironment. ECMWF provides access and support for the GRIB-API, an API that is accessible from C, FORTRAN and Python for both GRIB edition 1 and 2 formatted data. NET makes it easy to encode and decode. chromium / chromium / src / master /. Approach 1: Create the grib file from scratch. Sample code:try {Debugging using Log4J JGRIB uses Log4Jfor debugging. The definition is N/W/S/E in degrees longitude and latitude (see API manual). > You tried to call it as an external procedure. The example in the attached source code presents a UI for editing the Customer table. CDO requires NetCDF, GRIB_api, HDF5, PROJ. A newer generation has been introduced, known as GRIB second edition, and data is slowly changing over to this format. parm to output only desired fields. Since Wget is a non-interactive downloading utility, you can execute scripts containing Wget commands. You have to USE the > module to get at anything in it which in turn means that you'll need > the grib_api. 9 on cygwin (Windows 7). Use at your own risk. More recently, on October 22 2008, DataGrid v1 was released. For most recent documentation use make help. For this example, we will be plotting potential temperature, relative humidity, and tangential/normal winds. For example, by using PyNIO, the longitude and latitude can get from the file object directly. Example 4 In this example, we want to take some grib files, extract the 200, 500 and 700 height fields, convert to a regional subset and finally convert it into a netcdf file. River discharge, or river flow as it is also known, is defined as the amount of water that flows through a river section at a given time. GNU Wget is a freely available network utility to retrieve files from the World Wide Web, using HTTPS (Hyper Text Transfer Protocol Secure) and FTP (File Transfer Protocol), the two most widely used Internet protocols. T [email protected] A VectorGrid is a generic, abstract class for displaying tiled vector data. The built-in ctypes module is a powerful feature in Python, allowing you to use existing libraries in other languages by writting simple wrappers in Python itself. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: