no data found for atl08 in ROI

[linxiong100]

I got no error and no data for atl08. But there should be 55 matching granules in this region.

I am running the following testing code in Amazon forest:

from sliderule import icesat2
icesat2.init("slideruleearth.io")
grand_mesa = [ {"lon": -60, "lat": -3},
               {"lon": -59.8, "lat": -3},
               {"lon": -59.8, "lat": -2.8},
               {"lon": -60, "lat": -2.8},
               {"lon": -60, "lat": -3} ]
parms = { "poly": grand_mesa}
icesat2.atl08p(parms)

[jpswinski]

@linxiong100 the parms currently default to land ice for the icesat2 module. I realize this is not ideal, and in the next release we are changing it so that the default is dynamic (meaning the server side code chooses the best surface type for you).

But until then, you will need to explicitly provide the surface reference type in your parameters by adding "srt":icesat2.SRT_DYNAMIC.

So your code should look like:

from sliderule import icesat2
icesat2.init("slideruleearth.io")
grand_mesa = [ {"lon": -60, "lat": -3},
               {"lon": -59.8, "lat": -3},
               {"lon": -59.8, "lat": -2.8},
               {"lon": -60, "lat": -2.8},
               {"lon": -60, "lat": -3} ]
parms = { "poly": grand_mesa, "srt": icesat2.SRT_DYNAMIC}
icesat2.atl08p(parms)

When I run the code above, I get the following:

                                                                canopy_h_metrics  ph_count  ...   h_te_median                    geometry
time                                                                                        ...                                          
2018-11-02 18:38:42.853801984  (2.0147335490085164e+34, 9.183269356106256e-41...       909  ...  4.674732e-42  POINT (-59.80225 -2.80870)
2018-11-02 18:38:42.856002048  (0.0, 9.183269356106256e-41, -1.34316132028482...      1043  ...  1.163078e-43  POINT (-59.80225 -2.80856)
2018-11-02 18:38:42.858902016  (0.0, 9.183269356106256e-41, -1.34316132028482...       967  ...  1.541428e-43  POINT (-59.80229 -2.80838)
2018-11-02 18:38:42.862001920  (0.0, 0.0, -1.3431613202848254e-17, -3.1765583...      1019  ...  4.674732e-42  POINT (-59.80230 -2.80818)
2018-11-02 18:38:42.864602112  (0.0, 9.183269356106256e-41, -1.34316132028482...      1067  ...  1.653532e-43  POINT (-59.80233 -2.80801)
...                                                                          ...       ...  ...           ...                         ...
2024-07-22 14:52:59.217272576  (0.0, 0.0, 6.228695307664391e+31, -2.352258838...       148  ...  4.971527e-41  POINT (-59.86527 -2.80091)
2024-07-22 14:52:59.220172544  (0.0, 0.0, 6.228695307664391e+31, -2.352258838...       137  ...  4.972508e-41  POINT (-59.86527 -2.80072)
2024-07-22 14:52:59.222922624  (0.0, 0.0, 6.228695307664391e+31, -2.352258838...       124  ...  4.973489e-41  POINT (-59.86530 -2.80055)
2024-07-22 14:52:59.226172672  (0.0, 0.0, 6.228695307664391e+31, -2.352258838...       129  ...  4.975310e-41  POINT (-59.86533 -2.80034)
2024-07-22 14:52:59.228572672  (0.0, 0.0, 6.228695307664391e+31, -2.352258838...       139  ...  4.976291e-41  POINT (-59.86534 -2.80019)

[72261 rows x 20 columns]

[linxiong100]

oh, got it, need to set the surface type! thank you!