<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)">I know I'm not the first to post this topic and encountered this 

problem. But I've search and read some posts related to this and tried 

their solutions but no luck. I really can't figure out what is causing 

this problem. How am I going to solve it?

Badly need help! I have tried gdalwarp -wo SOURCE_EXTRA=100 -wo SAMPLE_GRID=YES and still no luck.

<br><br>Here are the info:

<br><br>gdalwarp -t_srs "+proj=longlat +datum=WGS84" HDF4_SDS:UNKNOWN:"A2014042042000.L2_LAC.SeAHABS.hdf":37 hdf.tif

Creating output file that is 783P x 697L.

Processing input file HDF4_SDS:UNKNOWN:A2014042042000.L2_LAC.SeAHABS.hdf:37.

<br>ERROR 1: Too many points (440 out of 441) failed to transform,

unable to compute output bounds.

Warning 1: Unable to compute source region for output window 0,0,783,697, skipping.

<br>0...10...20...30...40...50...60...70...80...90...100 - done.

<br><br><br><b>GDALINFO:</b><br><br>Driver: HDF4Image/HDF4 Dataset

<br>Files: A2014042042000.L2_LAC.SeAHABS.hdf

<br>Size is 563, 880

<br>Coordinate System is `'

<br>Metadata:

<br>  bad_value_scaled=-32767

<br>  bad_value_unscaled=-32767

<br>  Calibration Data=A2014042042000.L1A_LAC.eAHAB.hdf, MYD02_Reflective_LUTs.V6.1.17.19_OC.hdf, MYD02_Emissive_LUTs.V6.1.1

<br>7.19_OC.hdf, MYD02_QA_LUTs.V6.1.17.19_OC.hdf

<br>  cdm_data_type=swath

<br>  Conventions=CF-1.6

<br>  creator email=<a href="mailto:data@oceancolor.gsfc.nasa.gov">data@oceancolor.gsfc.nasa.gov</a>

<br>  creator name=NASA/GSFC/OBPG

<br>  creator url=<a href="http://oceandata.sci.gsfc.nasa.gov" target="_top" rel="nofollow">http://oceandata.sci.gsfc.nasa.gov</a><br>  date_created=20140211T064516Z

<br>  Day or Night=Day

<br>  Earth-Sun Distance Correction=1.02664971351624

<br>  Easternmost Longitude=136.7005615

<br>  End Center Latitude=11.01664448

<br>  End Center Longitude=131.961853

<br>  End Day=42

<br>  End Millisec=15905744

<br>  End Node=Ascending

<br>  End Time=2014042042505744

<br>  End Year=2014

<br>  Flag Percentages=0, 1.770345688, 0, 52.53552246, 57.10398483, 8.07766819, 0.434966892, 0, 29.46895599, 64.5276947, 0.0

<br>002018407686, 0.4016631842, 0, 0, 2.331059217, 0.0367350243, 0, 0, 0, 0.4466736615, 77.9515152, 0, 1.508356214, 0, 0, 1.

<br>087921858, 0, 72.44247437, 1.770345688, 6.767116547, 90.6432724, 0

<br>  geospatial_lat_max=11.47631836

<br>  geospatial_lat_min=2.273697615

<br>  geospatial_lat_units=degrees_north

<br>  geospatial_lon_max=136.7005615

<br>  geospatial_lon_min=125.5854034

<br>  geospatial_lon_units=degrees_east

<br><br>  Latitude Units=degrees North

<br>  license=<a href="http://science.nasa.gov/earth-science/earth-science-data/data-information-policy/" target="_top" rel="nofollow">http://science.nasa.gov/earth-science/earth-science-data/data-information-policy/</a><br>  long_name=Chlorophyll Concentration, OC3 Algorithm

<br>  Longitude Units=degrees East

<br>  Lower Left Latitude=11.47631836

<br>  Lower Left Longitude=135.0154266

<br>  Lower Right Latitude=9.963588715

<br>  Lower Right Longitude=125.5854034

<br>  Mask Names=ATMFAIL,LAND,CLDICE,HILT

<br>  naming_authority=gov.nasa.gsfc.sci.oceandata

<br>  Node Crossing Time=0000334000000

<br>  Northernmost Latitude=11.47631836

<br>  Number of Bands=16

<br>  Number of Pixel Control Points=563

<br>  Number of Scan Control Points=880

<br>  Number of Scan Lines=880

<br>  Orbit Node Longitude=-999

<br>  Orbit Number=-1

<br>  Pixels per Scan Line=563

<br>  

<br>  Scene Center Latitude=7.185176849

<br>  Scene Center Longitude=132.8315887

<br>  Scene Center Scan Line=440

<br>  Scene Center Solar Zenith=26.09000015

<br>  Scene Center Time=2014042042403706

<br>  Sensor Name=HMODISA

<br><br>  Upper Left Latitude=3.718107462

<br>  Upper Left Longitude=136.7005615

<br>  Upper Right Latitude=2.273697615

<br>  Upper Right Longitude=127.4018173

<br>  Westernmost Longitude=125.5854034

<br>Geolocation:

<br>  LINE_OFFSET=0

<br>  LINE_STEP=1

<br>  PIXEL_OFFSET=0

<br>  PIXEL_STEP=1

<br>  SRS=GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0

<br>,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHOR

<br>ITY["EPSG","9108"]],AUTHORITY["EPSG","4326"]]

<br>  X_BAND=1

<br>  X_DATASET=HDF4_SDS:UNKNOWN:"A2014042042000.L2_LAC.SeAHABS.hdf":11

<br>  Y_BAND=1

<br>  Y_DATASET=HDF4_SDS:UNKNOWN:"A2014042042000.L2_LAC.SeAHABS.hdf":12

<br>Corner Coordinates:

<br>Upper Left  (    0.0,    0.0)

<br>Lower Left  (    0.0,  880.0)

<br>Upper Right (  563.0,    0.0)

<br>Lower Right (  563.0,  880.0)

<br>Center      (  281.5,  440.0)

<br>Band 1 Block=563x880 Type=Float32, ColorInterp=Gray

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