<div>In order to check what is inside the grib file, I just installed the grib API [1] and ran </div><div><br></div><div>grib_dump dwd_grib1_ispra_gmi202_2012063000 > tst.txt</div><div><br></div><div>The information I get looking into the txt file is:</div>
<div><br></div><div>***** FILE: dwd_grib1_ispra_gmi202_2012063000 </div><div>#============== MESSAGE 1 ( length=68884 ) ==============</div><div>GRIB {</div><div> editionNumber = 1;</div><div> table2Version = 2;</div>
<div> # Offenbach (RSMC) (grib1/0.table) </div><div> centre = 78;</div><div> generatingProcessIdentifier = 207;</div><div> # U U-component of wind m s**-1 (grib1/2.0.2.table) </div><div> indicatorOfParameter = 33;</div>
<div> # Fixed height above ground height in meters (2 octets) (grib1/3.table) </div><div> indicatorOfTypeOfLevel = 105;</div><div> level = 10;</div><div> # Initialized analysis product for reference time (P1=0) (grib1/5.table) </div>
<div> timeRangeIndicator = 1;</div><div> # Unknown code table entry () </div><div> subCentre = 255;</div><div> paramId = 165;</div><div> #-READ ONLY- units = m s**-1;</div><div> #-READ ONLY- nameECMF = 10 metre U wind component;</div>
<div> #-READ ONLY- name = 10 metre U wind component;</div><div> decimalScaleFactor = 0;</div><div> dataDate = 20120630;</div><div> dataTime = 0;</div><div> # Hour (stepUnits.table) </div><div> stepUnits = 1;</div><div>
stepRange = 0;</div><div> startStep = 0;</div><div> endStep = 0;</div><div> #-READ ONLY- marsParam = 33.2;</div><div> shortName = 10u;</div><div> GDSPresent = 1;</div><div> bitmapPresent = 1;</div><div> numberOfVerticalCoordinateValues = 0;</div>
<div> Ni = 201;</div><div> Nj = 161;</div><div> latitudeOfFirstGridPointInDegrees = 35;</div><div> longitudeOfFirstGridPointInDegrees = -10;</div><div> earthIsOblate = 0;</div><div> uvRelativeToGrid = 0;</div><div> latitudeOfLastGridPointInDegrees = 74.96;</div>
<div> longitudeOfLastGridPointInDegrees = 40.04;</div><div> iScansNegatively = 0;</div><div> jScansPositively = 1;</div><div> jPointsAreConsecutive = 0;</div><div> #-READ ONLY- alternativeRowScanning = 0;</div><div> jDirectionIncrementInDegrees = 0.24975;</div>
<div> iDirectionIncrementInDegrees = 0.2502;</div><div> #-READ ONLY- numberOfDataPoints = 32361;</div><div> #-READ ONLY- numberOfValues = 32361;</div><div> missingValue = 9999;</div><div> tableReference = 0;</div><div>
#-READ ONLY- binaryScaleFactor = -11;</div><div> #-READ ONLY- referenceValue = -11.346;</div><div> sphericalHarmonics = 0;</div><div> complexPacking = 0;</div><div> integerPointValues = 0;</div><div> additionalFlagPresent = 0;</div>
<div> packingType = grid_simple;</div><div> bitsPerValue = 16;</div><div> values(32361) = {</div><div> 1.5509548187e+00, 1.4977321625e+00, 1.5494899750e+00, 1.6993923187e+00, 1.9513454437e+00, </div><div> 2.2316188812e+00, 2.5079860687e+00, 2.7740993500e+00, 3.0099391937e+00, 3.2716579437e+00, </div>
<div> 3.5905056000e+00, 3.9567165375e+00, 4.3610134125e+00, 4.6178493500e+00, 4.2081813812e+00, </div><div> 1.7648220062e+00, 1.5626735687e+00, 1.2032985687e+00, 6.4226341248e-01, 4.3620872498e-01, </div><div> 6.7986106873e-01, -9.1135025024e-02, 8.1716537476e-02, 2.3650169373e-01, 5.7488059998e-01, </div>
<div> 8.7077903748e-01, 3.6931419373e-01, -2.2541236877e-01, -7.8439712524e-02, -6.3312721252e-01, </div><div> -7.3127174377e-01, -3.0500221252e-01, 4.7087669373e-01, 8.9812278748e-01, 7.7019309998e-01, </div><div> 6.2175559998e-01, 7.5798606873e-01, 6.8425559998e-01, 9.6941184998e-01, 1.1735134125e+00, </div>
<div> 7.9851341248e-01, 2.5163841248e-01, -6.4386940002e-01, -1.0427951813e+00, -9.9543190002e-01, </div><div> -2.3191623688e+00, -1.5120334625e+00, 5.5388450623e-01, 1.7501735687e+00, 1.6022243500e+00, </div><div> -1.3963108063e+00, -2.5066623688e+00, -2.1536350250e+00, -2.0496311188e+00, -1.8875217438e+00, </div>
<div> -1.5056858063e+00, -7.7424049377e-01, -8.3283424377e-01, -9.7248268127e-01, -6.6681861877e-01, </div><div> -1.1380100250e+00, -2.5716037750e+00, -3.6634006500e+00, -3.5447483063e+00, -2.6272678375e+00, </div><div>
-1.4226779938e+00, -9.0168190002e-01, -8.6750221252e-01, -1.0720920563e+00, -1.6135959625e+00, </div><div> -1.5720920563e+00, -1.0823459625e+00, -9.9201393127e-01, -5.9504127502e-01, -7.6105690002e-01, </div><div> -1.1116428375e+00, -7.0002174377e-01, -2.5861549377e-01, -2.4201393127e-01, 2.2673606873e-01, </div>
<div> 5.2907943726e-02, -4.4318580627e-01, -6.2287330627e-01, -6.9855690002e-01, -7.3615455627e-01, </div><div> -1.9607639313e+00, -2.2805881500e+00, -2.2483615875e+00, -2.0520725250e+00, -1.8782444000e+00, </div><div> -1.7024631500e+00, -1.4602756500e+00, -1.1492404938e+00, -8.0695533752e-01, -4.1486549377e-01, </div>
<div> 4.3142318726e-02, 5.3532981873e-01, 9.9675559998e-01, 1.4259548187e+00, 1.8199977875e+00</div><div> ... 32261 more values</div><div> } </div><div> #-READ ONLY- numberOfCodedValues = 32361;</div><div> #-READ ONLY- maximum = 13.5881;</div>
<div> #-READ ONLY- minimum = -11.346;</div><div> #-READ ONLY- average = 0.101585;</div><div> #-READ ONLY- numberOfMissing = 0;</div><div> #-READ ONLY- standardDeviation = 3.29306;</div><div> #-READ ONLY- skewness = -29313.5;</div>
<div> #-READ ONLY- kurtosis = 1.62527e+07;</div><div> #-READ ONLY- isConstant = 0;</div><div> gridType = regular_ll;</div><div> #-READ ONLY- getNumberOfValues = 32361;</div><div><br></div><div>[...]</div><div><br></div>
<div>So it looks like the information is actually there, but the gdal driver can't handle it. Any hint?</div><div><br></div><div>Thanks,</div><div><br></div><div>Margherita</div><div><br></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">[1] </span><a href="http://www.ecmwf.int/products/data/software/grib_api.html" target="_blank" style="color:rgb(17,85,204);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">http://www.ecmwf.int/products/data/software/grib_api.html</a></div>
<br><div class="gmail_quote">On Thu, Aug 23, 2012 at 8:53 AM, Margherita Di Leo <span dir="ltr"><<a href="mailto:diregola@gmail.com" target="_blank">diregola@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi all,<div><br></div><div>I have a problem handling some grib files, I get a warning message and I can't understand how to deal with it..</div><div><br></div><div>running gdalinfo, it says:</div><div><br></div><div>Un-handled possible ensemble section center 78 subcenter 255
<br>[... several times, cut]<br>Un-handled possible ensemble section center 78 subcenter 255
<br>Driver: GRIB/GRIdded Binary (.grb)
<br>Files:
/home/leomarg/Desktop/Fire_event_test_case_Valencia/grib/dwd_grib1_ispra_gmi202_<a href="tel:2012063000" value="+12012063000" target="_blank">2012063000</a>
<br>Size is 201, 161
<br>Coordinate System is:
<br>GEOGCS["Coordinate System imported from GRIB file",
<br> DATUM["unknown",
<br> SPHEROID["Sphere",6367470,0]],
<br> PRIMEM["Greenwich",0],
<br> UNIT["degree",0.0174532925199433]]
<br>Origin = (-10.000000000000000,74.960000000000008)
<br>Pixel Size = (0.000000000000000,-0.000000000000000)
<br>Corner Coordinates:
<br>Upper Left ( -10.0000000, 74.9600000) ( 10d 0' 0.00"W, 74d57'36.00"N)
<br>Lower Left ( -10.0000000, 74.9600000) ( 10d 0' 0.00"W, 74d57'36.00"N)
<br>Upper Right ( -10.0000000, 74.9600000) ( 10d 0' 0.00"W, 74d57'36.00"N)
<br>Lower Right ( -10.0000000, 74.9600000) ( 10d 0' 0.00"W, 74d57'36.00"N)
<br>Center ( -10.0000000, 74.9600000) ( 10d 0' 0.00"W, 74d57'36.00"N)
<br>Band 1 Block=201x1 Type=Float64, ColorInterp=Undefined
<br> Description = 10[m] HTGL (Specified height level above ground)
<br> Metadata:
<br> GRIB_COMMENT=u-component (zonal) of wind [m/s]
<br> GRIB_ELEMENT=U
<br> GRIB_FORECAST_SECONDS=0 sec
<br> GRIB_REF_TIME= 1341014400 sec UTC
<br> GRIB_SHORT_NAME=10-HTGL
<br> GRIB_UNIT=[m/s]
<br> GRIB_VALID_TIME= 1341014400 sec UTC
<br>Band 2 Block=201x1 Type=Float64, ColorInterp=Undefined
<br> Description = 10[m] HTGL (Specified height level above ground)
<br> Metadata:
<br> GRIB_COMMENT=v-component (merdional) of wind [m/s]
<br> GRIB_ELEMENT=V
<br> GRIB_FORECAST_SECONDS=0 sec
<br> GRIB_REF_TIME= 1341014400 sec UTC
<br> GRIB_SHORT_NAME=10-HTGL
<br> GRIB_UNIT=[m/s]
<br> GRIB_VALID_TIME= 1341014400 sec UTC
<br><br>[...]</div><div><br></div><div>Furthermore, when I try with gdal_translate to convert one of the bands in tif format, the size of the pixels created is 0x0. </div><div><br></div><div>Thanks in advance for any hint.<span class="HOEnZb"><font color="#888888"><br clear="all">
<div><br></div>-- <br>Dr. Margherita Di Leo<br>
</font></span></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br>Dr. Margherita Di Leo<br>