# Software and Tools **URL:** https://forum.ecmwf.int/c/software-and-tools/17.md?page=3 [Latest](https://forum.ecmwf.int/latest.md) · [Categories](https://forum.ecmwf.int/categories.md) · [Tags](https://forum.ecmwf.int/tags.md) **Page:** 4 --- ## [Is there a way to query the system number for international models before performing the download request?](https://forum.ecmwf.int/t/is-there-a-way-to-query-the-system-number-for-international-models-before-performing-the-download-request/12761)
**Author:** [@Zhi-Weng\_Chua](https://forum.ecmwf.int/u/Zhi-Weng_Chua)\ **Replies:** 2\ **Last updated:** [28 April 2025 00:22 UTC](https://forum.ecmwf.int/t/is-there-a-way-to-query-the-system-number-for-international-models-before-performing-the-download-request/12761 "2025-04-28T00:22:25Z")
Hello, I have been using the Python API to download SST forecast seasonal mean anomaly files from the various international models included on Copernicus. I note the system numbers are listed here: Is there a way to … --- ## [Error 404 when i start download](https://forum.ecmwf.int/t/error-404-when-i-start-download/12483)
**Author:** [@Emilio\_Lazzaro](https://forum.ecmwf.int/u/Emilio_Lazzaro)\ **Replies:** 18\ **Last updated:** [23 April 2025 09:03 UTC](https://forum.ecmwf.int/t/error-404-when-i-start-download/12483 "2025-04-23T09:03:12Z")
Hi everyone, i’m trying to download a data from “reanalysis-era5-land” and i need to save the UID e API key in a .cdsapirc file, but when i try to open “our API” a white page it opens. How can i find my UID? --- ## [50 requests display limit ](https://forum.ecmwf.int/t/50-requests-display-limit/12726)
**Author:** [@Peter\_Paul\_Dimke](https://forum.ecmwf.int/u/Peter_Paul_Dimke)\ **Replies:** 0\ **Last updated:** [22 April 2025 11:40 UTC](https://forum.ecmwf.int/t/50-requests-display-limit/12726 "2025-04-22T11:40:47Z")
Hello, under Climate Data Store I can only see 50 of my 150 requests. How can I see all of my requests in one go? There does not seem to be a documented method via cdsapi in python for this, or I couldn’t find it. Thank… --- ## [Request too large, item limit for ERA5-Land data](https://forum.ecmwf.int/t/request-too-large-item-limit-for-era5-land-data/1488)
**Author:** [@colin\_chanteloube](https://forum.ecmwf.int/u/colin_chanteloube)\ **Replies:** 5\ **Last updated:** [17 April 2025 14:19 UTC](https://forum.ecmwf.int/t/request-too-large-item-limit-for-era5-land-data/1488 "2025-04-17T14:19:48Z")
Hi, I recently tried to download data from single levels ERA5-Land and the limit is actually 1000 items. I am quite sure that it was 100 000, is it normal ? Thanks, Colin Chanteloube --- ## ["SSLError(SSLEOFError(8, '\[SSL: UNEXPECTED\_EOF\_WHILE\_READING\] " while downloading ](https://forum.ecmwf.int/t/sslerror-ssleoferror-8-ssl-unexpected-eof-while-reading-while-downloading/12668)
**Author:** [@Aasma\_Acharya](https://forum.ecmwf.int/u/Aasma_Acharya)\ **Replies:** 0\ **Last updated:** [16 April 2025 18:48 UTC](https://forum.ecmwf.int/t/sslerror-ssleoferror-8-ssl-unexpected-eof-while-reading-while-downloading/12668 "2025-04-16T18:48:06Z")
Hello, I am using the following script to retrieve the dataset. I am making sure that I use the correct URL; url: CDSAPI setup - Climate Data Store key: However, it’s giving me an error “SSLError: HTTPSConnectionPo… --- ## [CMIP6 download status stuck at queued](https://forum.ecmwf.int/t/cmip6-download-status-stuck-at-queued/12619)
**Author:** [@Roberto\_Suarez](https://forum.ecmwf.int/u/Roberto_Suarez)\ **Replies:** 0\ **Last updated:** [12 April 2025 10:40 UTC](https://forum.ecmwf.int/t/cmip6-download-status-stuck-at-queued/12619 "2025-04-12T10:40:40Z")
I’m trying to download CMIP6 data via CDS. I’ve tried both the web and the Python API request. In both cases, the status is stuck on “queued.” This has been happening to me for the past 48 hours, whereas downloads previo… --- ## [how to use the API?](https://forum.ecmwf.int/t/how-to-use-the-api/12571)
**Author:** [@user354](https://forum.ecmwf.int/u/user354)\ **Replies:** 1\ **Last updated:** [9 April 2025 14:44 UTC](https://forum.ecmwf.int/t/how-to-use-the-api/12571 "2025-04-09T14:44:58Z")
why I can’t open the ‘how to use the API?’ page? --- ## [\`nocache\` parameter disabled for ADS requests?](https://forum.ecmwf.int/t/nocache-parameter-disabled-for-ads-requests/12296)
**Author:** [@Arbol\_Data\_Team](https://forum.ecmwf.int/u/Arbol_Data_Team)\ **Replies:** 4\ **Last updated:** [4 April 2025 18:43 UTC](https://forum.ecmwf.int/t/nocache-parameter-disabled-for-ads-requests/12296 "2025-04-04T18:43:30Z")
As of last night previously functioning requests to the ADS which included the nocache parameter began to fail. Requests to CDS implementing this parameter seem to be going through however. Can someone from ECMWF confir… --- ## [Where is the Common Data Model (CDM) documented?](https://forum.ecmwf.int/t/where-is-the-common-data-model-cdm-documented/1687)
**Author:** [@Kevin\_Marsh](https://forum.ecmwf.int/u/Kevin_Marsh)\ **Replies:** 3\ **Last updated:** [4 April 2025 08:27 UTC](https://forum.ecmwf.int/t/where-is-the-common-data-model-cdm-documented/1687 "2025-04-04T08:27:42Z")
The CDM is used in the Toolbox to allow data from different datasets to be processed by the Toolbox tools, workflows and applications. Where can i find more information about the CDM? --- ## [The dataset is incomplete](https://forum.ecmwf.int/t/the-dataset-is-incomplete/11512)
**Author:** [@Ming\_Han](https://forum.ecmwf.int/u/Ming_Han)\ **Replies:** 2\ **Last updated:** [4 April 2025 08:00 UTC](https://forum.ecmwf.int/t/the-dataset-is-incomplete/11512 "2025-04-04T08:00:46Z")
Hi We have a production system that downloading the ERA-5 hourly data at daily basis. For some reason, the following request did not return 24 hours of data and only contains 2-3 hour data. Any thoughts? Thanks Reque… --- ## [ERA5 - Too long wait or failed - API programmatic download](https://forum.ecmwf.int/t/era5-too-long-wait-or-failed-api-programmatic-download/12427)
**Author:** [@Diego\_Hernandez\_Neir](https://forum.ecmwf.int/u/Diego_Hernandez_Neir)\ **Replies:** 0\ **Last updated:** [1 April 2025 13:56 UTC](https://forum.ecmwf.int/t/era5-too-long-wait-or-failed-api-programmatic-download/12427 "2025-04-01T13:56:20Z")
Hello everyone! I have been trying to download a large dataset (whole northern hemisphere, 1950-present, daily time series) without success. Programmatically, 1 month and 1 variable per time. In the legacy version I dow… --- ## [Efficient way to verify that local data matches data on CDS?](https://forum.ecmwf.int/t/efficient-way-to-verify-that-local-data-matches-data-on-cds/12331)
**Author:** [@Peter\_McEvoy](https://forum.ecmwf.int/u/Peter_McEvoy)\ **Replies:** 0\ **Last updated:** [28 March 2025 14:53 UTC](https://forum.ecmwf.int/t/efficient-way-to-verify-that-local-data-matches-data-on-cds/12331 "2025-03-28T14:53:31Z")
Hi, I have downloaded a substantial amount of ERA5 data. However, sometimes the data on the CDS changes as issues are uncovered or file format changes are introduced. Thus, issuing the same request might give me differ… --- ## [Howto use .cdsapirc with both cds-beta and ads-beta](https://forum.ecmwf.int/t/howto-use-cdsapirc-with-both-cds-beta-and-ads-beta/5641)
**Author:** [@Heiko\_Klein](https://forum.ecmwf.int/u/Heiko_Klein)\ **Replies:** 3\ **Last updated:** [28 March 2025 11:26 UTC](https://forum.ecmwf.int/t/howto-use-cdsapirc-with-both-cds-beta-and-ads-beta/5641 "2025-03-28T11:26:47Z")
Hi, I’m using python-scripts to download data from both cds-beta (era5) and ads-beta (air-pollution models). These scripts use .cdsapirc with different endpoint-urls, url: https://cds-beta.climate.copernicus.eu/api and u… --- ## [API requests to "ERA5 hourly data on single levels from 1940 to present" taking longer than normal](https://forum.ecmwf.int/t/api-requests-to-era5-hourly-data-on-single-levels-from-1940-to-present-taking-longer-than-normal/12270)
**Author:** [@Max\_Dugan-Knight](https://forum.ecmwf.int/u/Max_Dugan-Knight)\ **Replies:** 0\ **Last updated:** [26 March 2025 16:35 UTC](https://forum.ecmwf.int/t/api-requests-to-era5-hourly-data-on-single-levels-from-1940-to-present-taking-longer-than-normal/12270 "2025-03-26T16:35:59Z")
I have been using Copernicus CDS ERA5 reanalysis data for a year or so but in the past couple weeks/days the API requests have started taking much longer. I’m primarily pulling from this dataset: ERA5 hourly data on sin… --- ## [Recovering from HTTP error \[500 Internal Server Error\] - downloading from reanalysis-era5-land](https://forum.ecmwf.int/t/recovering-from-http-error-500-internal-server-error-downloading-from-reanalysis-era5-land/12261)
**Author:** [@Martina\_Wenzl](https://forum.ecmwf.int/u/Martina_Wenzl)\ **Replies:** 2\ **Last updated:** [26 March 2025 15:20 UTC](https://forum.ecmwf.int/t/recovering-from-http-error-500-internal-server-error-downloading-from-reanalysis-era5-land/12261 "2025-03-26T15:20:36Z")
Hello guys, I’m currently downloading data using the API, which is working for the dataset “derived-era5-land-daily-statistics”. However, when requesting a variable from the dataset “reanalysis-era5-land”, i receive th… --- ## [SSL: CERTIFICATE\_VERIFY\_FAILED](https://forum.ecmwf.int/t/ssl-certificate-verify-failed/12256)
**Author:** [@Rafael\_Valle](https://forum.ecmwf.int/u/Rafael_Valle)\ **Replies:** 1\ **Last updated:** [26 March 2025 14:45 UTC](https://forum.ecmwf.int/t/ssl-certificate-verify-failed/12256 "2025-03-26T14:45:38Z")
I keep getting this error: SSLError: HTTPSConnectionPool(host=‘cds.climate.copernicus.eu’, port=443): Max retries exceeded with url: /api/retrieve/v1/processes/reanalysis-era5-pressure-levels (Caused by SSLError(SSLCert… --- ## [CAMS Charts API docs missing](https://forum.ecmwf.int/t/cams-charts-api-docs-missing/12246)
**Author:** [@Martins\_Daugavietis](https://forum.ecmwf.int/u/Martins_Daugavietis)\ **Replies:** 0\ **Last updated:** [25 March 2025 21:10 UTC](https://forum.ecmwf.int/t/cams-charts-api-docs-missing/12246 "2025-03-25T21:10:22Z")
I guess I’ll open this in a new thread. While exploring CAMS Charts I noticed there’s an option to see more docs about REST API for charts. Trying to open that documenation link leads to a page that’s stuck on loadi… --- ## [API requests queued for an extremely long time](https://forum.ecmwf.int/t/api-requests-queued-for-an-extremely-long-time/2883)
**Author:** [@Tiffany\_Tee](https://forum.ecmwf.int/u/Tiffany_Tee)\ **Replies:** 1\ **Last updated:** [25 March 2025 09:49 UTC](https://forum.ecmwf.int/t/api-requests-queued-for-an-extremely-long-time/2883 "2025-03-25T09:49:52Z")
Hi, I have previously downloaded lots of data using the API and there was no problem at all. Recently, I moved from Europe to Asia and now, a request for data \< 1MB in size takes 3 hours. I’m not sure if this is due to … --- ## [Maps in CAMS air quality forecasts don't work](https://forum.ecmwf.int/t/maps-in-cams-air-quality-forecasts-dont-work/12014)
**Author:** [@Martins\_Daugavietis](https://forum.ecmwf.int/u/Martins_Daugavietis)\ **Replies:** 3\ **Last updated:** [21 March 2025 17:15 UTC](https://forum.ecmwf.int/t/maps-in-cams-air-quality-forecasts-dont-work/12014 "2025-03-21T17:15:54Z")
Hello, I’m not sure if this is the right place to report this issue, but I’ll report it anyways. I’m not an app developer or business, but rather an end user (poweruser) with a tree pollen allergy using this service to … --- ## [ERA5-Land API Access: Machine-Dependent 404 Error](https://forum.ecmwf.int/t/era5-land-api-access-machine-dependent-404-error/11944)
**Author:** [@Reno\_Choi](https://forum.ecmwf.int/u/Reno_Choi)\ **Replies:** 2\ **Last updated:** [21 March 2025 12:33 UTC](https://forum.ecmwf.int/t/era5-land-api-access-machine-dependent-404-error/11944 "2025-03-21T12:33:30Z")
I am experiencing a machine-dependent issue when attempting to retrieve ERA5-Land data via the Copernicus Climate Data Store (CDS) API. The exact same request succeeds on my Linux machine but fails with a 404 error on my… --- ## [ERA5 GRIB and irregularities](https://forum.ecmwf.int/t/era5-grib-and-irregularities/12009)
**Author:** [@Florian\_Salvador](https://forum.ecmwf.int/u/Florian_Salvador)\ **Replies:** 0\ **Last updated:** [21 March 2025 09:26 UTC](https://forum.ecmwf.int/t/era5-grib-and-irregularities/12009 "2025-03-21T09:26:14Z")
Hello, I’m having a problem downloading ERA5 GRIB from the reanalysis-era5-pressure-levels dataset. Some extracted GRIB contain irregularities, such as the random duplication of certain messages (and therefore times), r… --- ## [Error accessing EFAS forecast](https://forum.ecmwf.int/t/error-accessing-efas-forecast/11920)
**Author:** [@Clement\_Fontana](https://forum.ecmwf.int/u/Clement_Fontana)\ **Replies:** 2\ **Last updated:** [18 March 2025 14:27 UTC](https://forum.ecmwf.int/t/error-accessing-efas-forecast/11920 "2025-03-18T14:27:27Z")
Hi, I get the error : 2025-03-17 15:22:04,887 INFO \[2024-09-26T00:00:00\] Watch our Forum for Announcements, news and other discussed topics. 2025-03-17 15:22:04,888 WARNING \[2024-06-16T00:00:00\] CDS API syntax is chan… --- ## [Precipitation Type Variable Not Downloading](https://forum.ecmwf.int/t/precipitation-type-variable-not-downloading/4254)
**Author:** [@Paul\_Abdallah](https://forum.ecmwf.int/u/Paul_Abdallah)\ **Replies:** 10\ **Last updated:** [17 March 2025 22:38 UTC](https://forum.ecmwf.int/t/precipitation-type-variable-not-downloading/4254 "2025-03-17T22:38:46Z")
Before the transition to the CDS-Beta API, I was able to download both the total precipitation and precipitation type parameters using the cdsapi client in Python. However, now when I attempt to download these parameters… --- ## [get an error using API to download authentification failed and operation not allowed](https://forum.ecmwf.int/t/get-an-error-using-api-to-download-authentification-failed-and-operation-not-allowed/11910)
**Author:** [@Folly\_Serge\_Tomety](https://forum.ecmwf.int/u/Folly_Serge_Tomety)\ **Replies:** 1\ **Last updated:** [17 March 2025 11:24 UTC](https://forum.ecmwf.int/t/get-an-error-using-api-to-download-authentification-failed-and-operation-not-allowed/11910 "2025-03-17T11:24:26Z")
I am new in using API to download ERA5 single level data. with all documentation I have install and setup the CDSAPI. but when I run the script I get this error mesage. If someone can help me I will be happy. File “/ho… --- ## [CDSAPI: reanalysis single-level is being download as a .zip when asked for "unarchived"](https://forum.ecmwf.int/t/cdsapi-reanalysis-single-level-is-being-download-as-a-zip-when-asked-for-unarchived/10172)
**Author:** [@R\_Pf](https://forum.ecmwf.int/u/R_Pf)\ **Replies:** 6\ **Last updated:** [17 March 2025 11:16 UTC](https://forum.ecmwf.int/t/cdsapi-reanalysis-single-level-is-being-download-as-a-zip-when-asked-for-unarchived/10172 "2025-03-17T11:16:50Z")
Hi there, I’m trying to download data using python cdsapi using the following query: {'product\_type': \['reanalysis'\], 'variable': \['top\_net\_thermal\_radiation'\], 'year': \['2024'\], 'month': \['10'\], 'day': \['31'\], 'time':… --- ## [Issue with SSL: CERTIFICATE\_VERIFY\_FAILED .... (\_ssl.c:1129)](https://forum.ecmwf.int/t/issue-with-ssl-certificate-verify-failed-ssl-c-1129/11502)
**Author:** [@gaeun\_kim](https://forum.ecmwf.int/u/gaeun_kim)\ **Replies:** 4\ **Last updated:** [17 March 2025 09:18 UTC](https://forum.ecmwf.int/t/issue-with-ssl-certificate-verify-failed-ssl-c-1129/11502 "2025-03-17T09:18:27Z")
Hello, Asking for help to fix this issue. Thank you in advance! I have re-installed API client, updated .cdsapirc (url: https://cds.climate.copernicus.eu/api) below is my request (python): import cdsapi import num… --- ## [A bug in cdsapi ERA5 Table 12 download](https://forum.ecmwf.int/t/a-bug-in-cdsapi-era5-table-12-download/11802)
**Author:** [@Teijo\_Arponen](https://forum.ecmwf.int/u/Teijo_Arponen)\ **Replies:** 1\ **Last updated:** [10 March 2025 15:14 UTC](https://forum.ecmwf.int/t/a-bug-in-cdsapi-era5-table-12-download/11802 "2025-03-10T15:14:07Z")
I found a bug in downloading ERA5 Table 12 data. When downloading parameter list including paramIds 129 (geopotential) and 152 (log of surf pressure), all other parameters are ignored. If I omit 129 and 152 from the para… --- ## [Request in progress time up to 10 hours](https://forum.ecmwf.int/t/request-in-progress-time-up-to-10-hours/11673)
**Author:** [@HUI\_ZOU](https://forum.ecmwf.int/u/HUI_ZOU)\ **Replies:** 0\ **Last updated:** [28 February 2025 09:18 UTC](https://forum.ecmwf.int/t/request-in-progress-time-up-to-10-hours/11673 "2025-02-28T09:18:57Z")
Hi there, When downloading GloFAS forecast data, I can only request one month at a time; otherwise, the file size is too large. So, I wrote a loop to automate the process. When I run it, the first month’s download is f… --- ## [ERA5-datasets delay](https://forum.ecmwf.int/t/era5-datasets-delay/11619)
**Author:** [@Markus\_Svensson](https://forum.ecmwf.int/u/Markus_Svensson)\ **Replies:** 1\ **Last updated:** [26 February 2025 16:58 UTC](https://forum.ecmwf.int/t/era5-datasets-delay/11619 "2025-02-26T16:58:41Z")
Hi, Currently the ERA5 (reanalysis-era5-single-levels) datasets are delayed for both precipitation and temperature. Is this a know problem, and related to some maintenance? Best regards, Markus --- ## [Error obtaining API key](https://forum.ecmwf.int/t/error-obtaining-api-key/11448)
**Author:** [@Mark\_DM](https://forum.ecmwf.int/u/Mark_DM)\ **Replies:** 0\ **Last updated:** [18 February 2025 11:27 UTC](https://forum.ecmwf.int/t/error-obtaining-api-key/11448 "2025-02-18T11:27:47Z")
Hello, I’m a new user and am following the guide shown here to obtain ADS data via the API https://ads.atmosphere.copernicus.eu/how-to-api Unfortunately there is a popup below with the message: Error We are experienci… [Previous page](https://forum.ecmwf.int/c/software-and-tools/17.md?page=2) [Next page](https://forum.ecmwf.int/c/software-and-tools/17.md?page=4)