Format: NetCDF-4 Classic. An Ice Baseline-D test dataset (TDS) covering three different time periods (September-November 2013, February-April 2014 and April 2016 (only SARIn)) was made available to the CryoSat Quality Working Group (QWG) and scientific experts in order to opportunely validate and check the quality of the new products. We compare CS-2 data qualitatively to SAR mosaics over the Barents and Kara seas. Abstract. In this . Added!Section!Known!Issues . intended to give! These datasets are now available through CoastWatch/OceanWatch and can be accessed here. They are calibrated and validated against in situ buoys and other concurrently operating altimeters: Jason-2, CryoSat-2, and Satellite with Argos and ALtiKa (SARAL). Range correction is required and is important in order to take into . SWIM product simplified handbook. + surface-dependent geophysical cor. Additional information. The Quick Look products have additional uncertainty compared to the consolidated product; . (tests against CryoSat Kiruna PDGS Products and against transponder data). ESA has a long history of operating radar altimeters, and to span the period from 1992 to 2016 we use data from both the European Remote Sensing (ERS) satellites (Mullard Space Science Laboratory (MSSL), U.C.L., 2014), the Environmental Satellite (Envisat) (Batoula et al., 2011), and the CryoSat-2 mission (CryoSat product handbook, 2012). This revision of the document has been released Document - Data Access Information Third-Party-Mission-Data-Access-Guide.pdf. Cryosat-2 carries an altimeter/interferometer called Siral and a Doris instrument, but no radiometer. We present methods to utilise CryoSat-2 (CS-2) synthetic aperture radar (SAR) mode data in operational ice charting. Level 2 products contain the time of measurement, the geo-location and the height of the surface above the reference ellipsoid. 36, pp. While this product just covers a limited amount of lakes and reservoirs, those who aim at rivers or CryoSat-2 Level 2 (L2) Baseline-D ice products released in 2019 can provide better results for land ice than the Baseline-C products used in previous . The purpose of this paper is to analyze the influence of satellite altimetry data accuracy on the marine gravity anomaly accuracy. Using the Ice, Cloud, and land Elevation Satellite 2 (ICESat-2) global high-resolution elevation measurements, it is possible to distinguish individual surface ocean waves. The DEM is formed from spatio-temporal fits to elevation measurements accumulated within 1, 2, and 5 km grid cells, and is posted . Rev$1.1 14.!August!2015 Added!Section!Changelog!(Change!of!algorithm!version)! This paper provides an overview of the new Level-1 and Level-2 (L2) CryoSat ice Baseline-D evolutions and related data quality assessment, based on results obtained from analysing the 6-month . Narrow your search by typing a phrase or selecting a category. The CryoSat Ice Baseline-D processor generates Level 1B and Level 2 Ice products from 126 L0 LRM, SAR and SARIn products. The EOLIS products exploit CryoSat's SARIn mode and the novel Swath processing . Introduction 1.1. 1. How to access CryoSat-2 data; CryoSat-2 Products Overview; CryoSat-2 Products Handbook; CryoSat-2 Geographical Mode Masks; CryoSat-2 Baseline C Improvements; CryoSat-2 Baseline D Improvements; Dependencies is! CryoSat products CryoSat-2 Level-1B Waveforms, Sea Ice Elevation, and Surface Roughness V001 CryoSat-2 Level-4 Sea Ice Elevation, Freeboard, and Thickness V001 CryoSat-2 Sea Ice Freeboard, Thickness, and Snow Depth Quick Look, Version 1 ECCO Atmosphere Surface Temperature, Humidity, Wind, and Pressure - Daily Mean 0.5 Degree (Version 4 . 65°N < latitude < 88°N for Cryosat-2 and 81.5°N for the other datasets. . Associated Jupyter notebook and python scripts are available for download here. In August 2019 Update to AWI CryoSat-2 algorithm version 2.2 Rev 1.2 23. RD.3 CryoSat Product Handbook RD.4 Earth Explorer File Format . CryoSat!data! The misfit between SAR Waveform Model and SAR Waveform Data has been computed as: sqrt( 1/128*sum(residual . The observations made by Cryosat will determine whether or not our ice masses are thinning due to global warming. Download this page in PDF format This week we start in the future with ESA's announcement of an online press conference on Friday 16th October to discuss the November launch of the Copernicus Sentinel-6 'Michael Freilich' ocean-monitoring satellite; scheduled … To assess the performance of AltiKa, we compare the retrieved elevation and elevation change to satellite Ku-band altimetry data from CryoSat-2. The Cryosat Ground Segment will be organised around a single ESA ground station, located in Kiruna . 3.4 Additional . These data were classified into three groups: A, B, and C, according to the track density, the accuracy of the altimetry satellites, and the differences of self . overview! Product Handbook, w hich is available for download at the ES A Earthnet Online. We find that even though the regional geoid models are all based on the latest satellite gravity data as provided by GOCE . The CryoSat-2 MDTs agree on the ∼3-5 cm level with both tide-gauge geodetic and ocean MDTs along the Norwegian coast. To evaluate the precision of the product in a 2-altimeter configuration, we compare the mapped product from SARAL/AltiKa and Cryosat-2 from July 2016 to July 2018 with the along-track SLA from Sentinel-3. 5.2.2.1 Altimeter measurements. Software. About this app. ESA and Mullard Space Science Laboratory - University College London, (available at . Picot N, Bronner E, Couhert A, Guillot A, Desai, S, Bonekamp, H, Figa J, Scharroo R, Lillibridge J (2016) Jason-3 products handbook, SALP-MU-M-OP-16118-CN. I got this equation from CryoSat 2 product handbook : range = (0.5 * c * window delay) + retracking. CryoSat-2 product, to the ASIRAS and ALS freeboards within a radius of 50 km of RV Lance on the 19 and 24 April 2015, is shown in Figure 6. CryoSat-2 snow freeboards below −0.1 m and above 3.0 m are filtered out prior to gridding, to account for instrument noise and to remove anomalously high freeboard values. Discover all our resources by clicking search. Download this page in PDF format This week we start in the future with ESA's announcement of an online press conference on Friday 16th October to discuss the November launch of the Copernicus Sentinel-6 'Michael Freilich' ocean-monitoring satellite; scheduled … CryoSat-2 is operating since 2010 and has been widely used to map the elevation and elevation change of the Greenland and Antarctic ice sheets (Helm et al., 2014; Nilsson et al., 2016). With the vast majority of ocean surveying missions using radar satellites, ICESat-2 observations are an important addition to ocean surveys. 123 2 CryoSat Ice Baseline-D Evolutions 124 The new Ice Baseline-D processors were approved and transferred to operation on 27th May 125 2019. |Page5!! 2.1. Python tools for reading waveform and geolocated elevation data from the ESA CryoSat-2 mission and writing to HDF5. Siral is a Ku-band instrument (13.575 GHz) operating in three modes: • The 10 km SSH segment length is the same as that used in the ICESat-2 along-track sea ice data products (Kwok, Cunningham, Markus, et al., 2020). CryoSat!Product!Handbook!!Page2!! ESA and Mullard Space Science Laboratory - University . used in the processing of higher level CryoSat data products. products.!! I have the CryoSat-2 L1b data, I am looking for the range calculation to extract the elevation. 1.2 Referenced Documents The following is a list of documents with a direct bearing on the content of this report. CryoSat-2 Products Overview; CryoSat-2 Products Handbook; CryoSat-2 Geographical Mode Masks; CryoSat-2 Baseline C Improvements; CryoSat-2 Baseline D Improvements; The NOAA Laboratory for Satellite Altimetry (LSA) sea surface height team produces .25-degree longitude/latitude Level-3 sea level anomaly (SLA) daily datasets by applying optimal interpolation to along-track satellite observations over the global ocean from a constellation of radar altimeter missions. SWIM L2P SWH 1Hz and 5Hz nadir product handbook. 5.2.2 Data processing. Abstract A new empirical model of ocean tides has been developed for the Weddell Sea, south of 66°S, between 90°W and 0°, using six years of radar altimeter data from the CryoSat-2 satellite mission. While CryoSat-2 echoes penetrate to the ice surface over first-year ice and penetrate the majority (82 ± 3%) of the snow layer over multiyear ice, AltiKa echoes are scattered from roughly the midpoint (46 ± 5%) of the snow layer over both ice types. RA2-MWR Product Handbook; Guide to R&W Envisat products; Handbook for T/P. Purpose and Scope of this User Guide This! These products are primarily designed for the study of - CryoSat product Handbook (pdf) - Sentinel 3 user handbook (html) 5.2.2 Processing. Documents. CryoSat!data! Here we use the new Level 2 GOP data, which are distributed by ESA and are available for download via ftp at ftp://science-pds.cryosat.esa.int. the! Therefore, Sentinel-3 along-track data is filtered . CryoSat-2 Geophysical Ocean Product. of! CryoSat-2 Product Handbook C2-LI-ACS-ESL-5319 P a g e 6 Baseline E 1.0 draft B Document Change Log Revision Date Details of changes D 1.0 3-APR-2018 Brought up to date for Baseline D. D 1.1 13-DEC-2019 Integrated updates from IDEAS Performed internal review and integrated comments E 1.0 TBD Brought up to date for Baseline E. Sentinel-3&6 L2P Significant Wave Height and wind speed Product Handbook Issue :2.2 - Date 05/04/2022 - Nomenclature: SALP-MU-S3_COP-OP-17127-CN i.2 Chronology Issues: Issue: Date: Validated by Reason for change: 1.0 2018/11/05 Creation of the document 1.1 2019/02/19 Taking into account RID from NRT WAVE SRR is! Product User Guide & Algorithm Specification - AWI CryoSat-2 Sea Ice Thickness version 2.4 (October 2021) Issue 2021/10/11 3 Document Version Rev 1.0 06. Download this page in PDF format This week we start in the future with ESA's announcement of an online press conference on Friday 16th October to discuss the November launch of the Copernicus Sentinel-6 'Michael Freilich' ocean-monitoring satellite; scheduled … The NOAA Laboratory for Satellite Altimetry produces daily near-real time global sea level anomaly datasets from a constellation of radar altimeter missions. read-cryosat-2. Launched in April 2010, it provides multi-year elevation data at latitudes never reached before by a satellite altimeter. CryoSat-2 Geophysical Ocean Product. gives the detailed description of SWIM L1A/L1B/L2 product variables. intended to give! The altimeter data covers a narrow swath along the nadir point of the satellite orbits. CryoSat Product Handbook. SWIM Product User Guide. Its orbit—at an inclination of about 92° and an altitude of 717 km—covers almost all polar regions. users!a concise! Our results show that water level change trends observed by Cryosat-2 20-Hz retracked observations, the SARAL/AltiKa 40-Hz Ice-1 retracked data, and the Hydroweb measurements are consistent with . SIR_FDM_2_: Latitude and Longitude of measurement (Section 8.27 in CryoSat Product Handbook) Others: 1 Hz Latitude (lat_01) and Longitude (lon_01) (Section 3.1 in CryoSat Ice netCDF L2 Product Format Specification) The values are provided in the unit of 1e-1 microdegrees and need to be scaled accordingly. Furthermore, we compare the CS-2 to archived ICESat-2 can also provide additional observations not possible with radar. November 2020 Update to AWI CryoSat-2 algorithm version 2.3 Rev 1.3 11. We present a new digital elevation model (DEM) of the Antarctic ice sheet and ice shelves based on 2.5×108 observations recorded by the CryoSat-2 satellite radar altimeter between July 2010 and July 2016. The CryoSat Mission and its Characteristics April 2012. This equivalent distance for Cryosat-2 SAR Baseline B data processed here is 23.42 cm (Cryosat Product Handbook, 2012). Figure 1 depicts the distribution of the Cryosat-2 data over the entire Mediterranean basin as well as the . 1. The median zonal and meridional correlation scale south of 50°S is 107 km (Fig. overview! In addition, we compute geostrophic surface currents to help identifying errors in the geoid models. It contains information on 1) the Primary and auxiliary data sets used in the processing 2) Description of the algorithm used to derive geophysical information along orbit segments and on. Hence, in order to explore the possibility of the Global Positioning System (GPS) technology to monitor the water-induced crustal deformation, we use the Cryosat-2/SIRAL altimeter data to investigate the variations of Lake Qinghai level and its impacts on local crustal . Acknowledgments and References [1] R. K. Raney, "The Delay Doppler radar altimeter," IEEE Transactions on Geoscience and Remote Sensing, vol. Introduction 1.1. products.!! Available . > 7.2.2 CryoSat-2 > 7.2.2.4 CryoSat-2 Ground segment. 123 2 CryoSat Ice Baseline-D Evolutions 124 The new Ice Baseline-D processors were approved and transferred to operation on 27th May 125 2019. Denmark) is the only one providing L3 water levels (along-track product) deri ved from CryoSat-2. CryoSat Product Handbook. In general, the HY-2 altimeter measurements agree well with buoy . IntroductionIntroduction CryoSat-2's primary mission objectives are to monitor the changes affecting the world's sea-ice and large ice sheets to quantify thickness, mass trends and the contribution to sea-level change. Antarctic (soon available): 88°S for Cryosat-2 and 81.5°S for the other datasets < latitude < 55°S. The GOP data are delivered approximately 30 days after data acquisition and are available for data acquired since April 2014. Global map of sea level anomalies for June 26, 2017 produced using the NOAA Laboratory for . 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