Pulling out all the Sentinel-1 coverage of Jakobshavn at the ESA image browser back to Dec 2014 and stripping those records into an excel-type database, I found 78 scenes of 4 types.
06 EW GRDH 1SDH 2015 09 30 20 m by 40 m resolution
40 EW GRDM 1SDH 2015 09 30 20 m by 40 m resolution
16 IW GRDH 1SSH 2015 09 24 05 m by 20 m resolution
16 IW SLC 1SSH 2015 09 24 05 m by 20 m resolution
The most useful to us are the 16 IW GRDH which nukefix has been reprocessing for us (see post #974)) to 15 m resolution to co-register with Landsat band 8 mercator from EarthExplorer. The file name tells the story: S1A_IW_GRDH_1SSH_20150924_cal_EC_todB_15m_UTM22_Sigma0_HH_db.jpg
Unfortunately the satellite has rarely operated in IW mode over Jakobshavn. There was a long hiatus between late March and September this year, ie no IW coverage of the melt season and main calving events. I don't know what the plans are for fall or winter. Additionally ESA seems to have lost the 08 Feb 15 image.
By great good fortune, we have a Sentinel IW and a mildly cloudy Landsat band 8 for the same day, Sept 24th (animation below). This allows us to better interpret both in terms of calving front and iceberg appearance. The co-registration is not perfect enough however to combine them into an RGB color image (blue taken as blank).
2015 09 24*
2015 09 12
2015 03 28
2015 03 24
2015 03 16
2015 03 12
2015 030 4
2015 02 28
2015 02 20
2015 02 16
2015 02 08 SLC only
2015 02 04
2015 01 15
2015 01 11
2014 12 22
2014 12 18
The next most useful to us are the less abundant EW GRDH which are ordinary tiff file pairs for the two polarizations. As commonly posted here (eg #980), these are rotated by 22º CCW relative to Landsat and otherwise distorted but ok for the immediate vicinity of the calving front. ESA only began taking these high resolution scenes in September:
2015 09 30
2015 09 25
2015 09 20
2015 09 18
2015 09 13
2015 09 06
Sentinel data is classified by type (GRDH, GRDM, SLC) and by acquisition mode (EW Extra-Wide swath and IW Interferometric Wide swath). All the Greenland data is Level-1. We are not concerned with SSH (sea surface height nor SWH significant wave height.
GRD (Ground Range Detected, H high and M medium resolution) consists of ‘focused SAR data that has been detected, multi-looked and projected to ground range using an Earth ellipsoid model. Phase information is lost. The resulting product has approximately square resolution pixels and square pixel spacing with reduced speckle at the cost of reduced geometric resolution.’
SLC (Single Look Complex) consists of ‘focused SAR data geo-referenced using orbit and attitude data from the satellite and provided in zero-Doppler slant-range geometry. The products include a single look in each dimension using the full TX signal bandwidth and consist of complex samples preserving the phase information.’ So far we have not done anything with the phase information.
Here is the full set of Sentinel-1 images of Jakobshavn up today in csv semi-colon format. Only the variable section of the url is shown; to make a valid download link, it needs to be inserted within
https://scihub.esa.int/dhus/odata/v1/Products(‘#####')/$value
EW,GRDH,1SDH,2015 0930,5bfee856-b884-494b-9f44-afbd0ec221cc;EW,GRDH,1SDH,2015 0925,6ea7e5a6-4690-470f-8eb7-583b3e940020;EW,GRDH,1SDH,2015 0920,42cb4e91-f9d9-4c95-9f74-c52298421ef9;EW,GRDH,1SDH,2015 0918,6de0dc0d-7072-4ac6-9662-10626f989e71;EW,GRDH,1SDH,2015 0913,d6c1795d-a17e-405f-ba30-9200f90aea88;EW,GRDH,1SDH,2015 0906,573d2c63-48e0-4174-bbe2-be07bd791e3b;EW,GRDM,1SDH,2015 0930,b7b1dff6-8a01-4ead-ae45-56fc7c0ec14a;EW,GRDM,1SDH,2015 0925,96620160-f74b-4470-9704-c60854e60ca1;EW,GRDM,1SDH,2015 0920,646214be-b68b-4124-b989-fba7538e3e94;EW,GRDM,1SDH,2015 0918,530fb556-0a24-47a6-abda-7fa921f5e3ee;EW,GRDM,1SDH,2015 0913,fee2f106-cb68-4c11-a7de-9d0fc4459bb9;EW,GRDM,1SDH,2015 0906,77b2e367-f13f-40a4-84ac-aa876ef6d514;EW,GRDM,1SDH,2015 0901,fd5a0457-602b-4a6a-ad37-bece669790d3;EW,GRDM,1SDH,2015 0331,1ad306cc-f883-4557-a533-0fc0dee6a722;EW,GRDM,1SDH,2015 0330,981fcfe8-088b-43b1-a478-ee2e54524020;EW,GRDM,1SDH,2015 0329,84511901-ae50-4ed6-b516-b4e6a43e0f12;EW,GRDM,1SDH,2015 0323,73c6a025-0a04-4426-a8a1-1e060806f8f7;EW,GRDM,1SDH,2015 0322,2ee0b9d9-390a-4252-9b29-19e1b5d33ca5;EW,GRDM,1SDH,2015 0321,25f9ec5b-d005-43b6-a429-98abd2bdefd9;EW,GRDM,1SDH,2015 0319,0018a331-96f1-4470-a406-207b8637eeec;EW,GRDM,1SDH,2015 0318,c7b503f1-3687-4f1b-a69b-fd28ab8e7dcd;EW,GRDM,1SDH,2015 0317,1b2cd2e4-42ca-4795-88a0-e6af7350c9a3;EW,GRDM,1SDH,2015 0311,8966d945-8cfd-4b66-96a5-edece1f8ce9f;EW,GRDM,1SDH,2015 0310,5f996c80-aba1-4029-a8d6-fe6e32dc6c78;EW,GRDM,1SDH,2015 0309,e43c3d23-1aab-4d07-a43b-a75746c53f5c;EW,GRDM,1SDH,2015 0307,dbff3838-a400-40d0-89b1-85c5599d4b45;EW,GRDM,1SDH,2015 0306,665b59b7-5844-4244-9526-5faea51f3d1c;EW,GRDM,1SDH,2015 0305,2e0856a9-30a2-4c9a-915f-4fb3459d7985;EW,GRDM,1SDH,2015 0227,cb1f7fb4-482e-4b35-9ff1-8f568b6556c2;EW,GRDM,1SDH,2015 0226,d015a427-83ed-4e1c-a8b3-e1b13bc4567b;EW,GRDM,1SDH,2015 0225,f5808940-850b-41ef-aa07-400067cd9f3c;EW,GRDM,1SDH,2015 0223,3cf56f2a-0208-4c9c-9a9c-3e6631ef8661;EW,GRDM,1SDH,2015 0222,f6067ec7-4a5f-423b-8d4f-2b8bfd6a0814;EW,GRDM,1SDH,2015 0221,f1defd03-05d6-40bc-8f53-4c7a8af12ff2;EW,GRDM,1SDH,2015 0203,21d75733-2983-40e1-a708-5b9bc21c3dd5;EW,GRDM,1SDH,2015 0116,6379aeaf-a803-43f5-b0de-6169e432d721;EW,GRDM,1SDH,2015 0110,396319ee-7ff9-400e-8710-990977cf9464;EW,GRDM,1SDH,2015 0109,dbd2e956-e158-4570-b1fb-7b897392aec5;EW,GRDM,1SDH,2015 0108,1bb5e3a9-466f-4633-b41a-22e0d56c4be9;EW,GRDM,1SDH,2015 0106,66e83b1e-9e18-4123-8f31-f1bb00241c6f;EW,GRDM,1SDH,2015 0104,b16237a1-0d23-4c80-b65c-f63824eb302f;EW,GRDM,1SDH,2014 1224,eb7f0bb5-8509-4685-aac1-55fdf59451d9;EW,GRDM,1SDH,2014 1217,dda47f62-cfab-433b-b400-47ac2586c282;EW,GRDM,1SDH,2014 1216,e3cea07f-8d3b-4b17-afc1-0e352ae60e1c;EW,GRDM,1SDH,2014 1215,3efb8d34-e272-4bbd-a80a-919f7f5d66e4;EW,GRDM,1SDH,2014 1213,d8c6db44-d123-43fa-9201-4550fbdb48ff;IW,GRDH,1SSH,2015 0924,e7eeb282-4d63-4bfe-bfce-b82ce8e0ef5d;IW,GRDH,1SSH,2015 0912,6a0b02c9-50a2-47b2-830b-d0707e5d5cac;IW,GRDH,1SSH,2015 0328,2f06cd65-bb60-49b4-a932-45d66f4fa429;IW,GRDH,1SSH,2015 0324,85630776-a95d-4707-b4bf-805ce7bdde6c;IW,GRDH,1SSH,2015 0316,5b51d113-21f0-4bbc-887c-0b72b9a669f7;IW,GRDH,1SSH,2015 0312,ce1e063a-a237-43f7-8e85-c31f4e487f11;IW,GRDH,1SSH,2015 0304,50064c58-6ad8-4510-93d6-bae0b432e4ef;IW,GRDH,1SSH,2015 0228,f7092300-c089-4c5a-83de-f15a7b6b2d55;IW,GRDH,1SSH,2015 0220,6b184e0e-b570-48f0-ad91-7b8f0824957c;IW,GRDH,1SSH,2015 0216,9a555ae1-7542-4099-abb6-8fd2281f8d2e;IW,GRDH,1SSH,2015 0208,xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;IW,GRDH,1SSH,2015 0204,346c7590-e9ef-4c65-a0cf-5f096a3be84b;IW,GRDH,1SSH,2015 0115,066dced6-1044-46d0-8296-1b44c7fa4be2;IW,GRDH,1SSH,2015 0111,f14e54d4-e0bf-4011-bd97-b278f3d700df;IW,GRDH,1SSH,2014 1222,0df1c9bc-ee95-49b1-8118-e8161651ff5f;IW,GRDH,1SSH,2014 1218,9598b21f-f46f-4d93-a8df-62022c979977;IW,SLC,1SSH,2015 0924,92507aaa-03d9-462d-8425-61a6229e0940;IW,SLC,1SSH,2015 0912,8b156bb8-8893-4b50-be40-a36c8dbc1161;IW,SLC,1SSH,2015 0328,5bc4acdc-81c8-4553-b003-dc0079865276;IW,SLC,1SSH,2015 0324,85590167-8bb4-4dbe-ab87-3fd09d19ed58;IW,SLC,1SSH,2015 0316,1af97347-45f8-4845-9650-c6fc952e2b54;IW,SLC,1SSH,2015 0312,ad5a8ff7-c789-484f-b7be-282bd23115eb;IW,SLC,1SSH,2015 0304,1744eb63-ff9b-4466-a6fd-7385d69bab6d;IW,SLC,1SSH,2015 0228,e666dfc0-d3d9-4c65-ba66-b55867e4c2d2;IW,SLC,1SSH,2015 0220,2231e74d-5984-4da4-a33c-ae72699cecda;IW,SLC,1SSH,2015 0216,2d192f45-cb99-423e-96ab-da48dc0f3535;IW,SLC,1SSH,2015 0208,0a008aff-cf1e-4c9b-9fae-9787bf6baf42;IW,SLC,1SSH,2015 0204,18d545fe-081b-4471-8cac-64934edf72c1;IW,SLC,1SSH,2015 0115,674f2120-d4f1-42b2-bb1c-5606b442cdea;IW,SLC,1SSH,2015 0111,fa8bbc6e-15dd-4c84-bc5b-7afb5f0456d2;IW,SLC,1SSH,2014 1222,f91d3a10-b2cd-4ed5-a307-08c888de4965;IW,SLC,1SSH,2014 1218,a348bd03-c1d2-470f-9b63-8ed22d2741e8