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2024-12-31-accounts

Company no: 02676180 Charity no: 1078635

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED (A company limited by guarantee)

Report and Unaudited Financial Statements for the Year Ended 31 December 2024

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Financial Statements for the Year Ended 31 December 2024

Contents Pages
Report of the Trustees 1 - 6
Independent Examiner’s Report to the Trustees 7
Statement of Financial Activities 8
Comparative Statement of Financial Activities 9
Balance Sheet 10
Notes to the Financial Statements 11 - 16

The following page does not form part of the statutory financial statements

Detailed Income and Expenditure Statement 17

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED Report of the Trustees For the Year Ended 31 December 2024

The trustees are pleased to present their annual report together with the financial statements for the year ended 31 December 2024. The trustees have adopted the provisions of the Statement of Recommended Practice (SORP) “Accounting and Reporting by Charities” in preparing the annual report and financial statements of the charity.

REFERENCE AND ADMINISTRATIVE DETAILS

Directors & Trustees

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----- Start of picture text -----
The directors of the charitable company are also trustees for the purpose of charity law.
The trustees and officers who served during the year and since the year end were as follows:
Directors & Trustees: Prof K Heal
Dr B M Arheimer (resigned July 2025)
Prof J-M Kileshye Onema
Dr K Soulis (appointed January 2025)
Miss H Houghton-Carr (appointed February 2025)
Prof S Grimaldi (appointed July 2025)
Secretary: Miss H Houghton-Carr
Registered Office 10 Broad Street
Abingdon
Oxfordshire
OX14 3LH
Company number: 02676180
Charity number: 1078635
Business address UK Centre for Ecology & Hydrology
Wallingford
Oxfordshire
OX10 8BB
Accountants Wenn Townsend Accountants Limited
10 Broad Street
Abingdon
Oxfordshire
OX14 3LH
Manager: Dr C Lupton
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Page 1

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED Report of the Trustees

For the Year Ended 31 December 2024 (Cont.)

STRUCTURE, GOVERNANCE AND MANAGEMENT

Governing document

The charity is constituted as a company limited by guarantee and is therefore governed by its articles of association.

Appointment, induction and training of trustees

When there is a requirement for new trustees, these are identified and appointed by the remaining trustees. The charity trustees include the following officers of the Association’s Bureau: President, Secretary General and Treasurer, the former two being elected positions. The board appoints a Chair and a Secretary (who automatically become trustees and members of the board of the charity and Association Bureau members if they are not already). The induction of the new trustees involves making them aware of a trustee’s responsibility, the governing document and administrative procedures of the charity.

Organisation

The charity is organised so that the trustees meet regularly to manage its affairs. A manager is appointed by the trustees to manage the day to day running of the charity. The trustees use the ‘Charity Governance Code for smaller charities’ to inform and support continuous improvement in its practice and governance.

Risk management

The trustees actively review the major risks which the charity faces on a regular basis and believe that ensuring reserves stand at more than 100% of annual direct and operating costs, combined with an annual review of the controls over key financial systems, will provide sufficient resources in the event of adverse conditions. The trustees have also examined other operational and business risks faced by the charity and confirm that they have established systems to mitigate the significant risks.

OBJECTIVES AND ACTIVITIES FOR THE PUBLIC BENEFIT

The charity’s objectives are to advance education and research in hydrology for the public benefit and to publish the useful results of such research. A major activity continues to be the production and distribution of scientific journals. The charity supports the International Association of Hydrological Sciences (IAHS) by providing services for the membership and supporting the IAHS Bureau in its endeavours. The trustees confirm that they have complied with the duty in Section 17 of the Charities Act 2011 to have due regard to public benefit guidance published by the Charity Commission.

ACHIEVEMENTS AND PERFORMANCE

IAHS Ltd supports the President, Secretary General and Treasurer of the International Association of Hydrological Sciences and the Association’s Bureau activities and manages the Association’s finances. It also maintains the Association’s website (www.iahs.info) which is the information hub for the Association and its 11 Commissions, maintains the IAHS membership database and sends information to members about IAHS activities and events via electronic alerts, newsletters, and social media. At the end of 2024, the number of IAHS individual members had increased to almost 12,000, of whom 47% were in financially disadvantaged countries (FDCs). Individual membership of the Association is free of charge. The 2024 IAHS Ltd Board meeting was held in March in hybrid mode.

IAHS Ltd has four part-time members of staff. The IAHS Ltd staff documentation, including terms and conditions, job descriptions, and appraisal and forward job plans, was comprehensively revised and updated with support from an external HR consultant to ensure that they continue to reflect best practice and support staff. The IAHS Communications Officer attended the EGU General Assembly in April 2024 to better understand the role of IAHS within the wider hydrological community and to present a poster on communication in the IAHS HELPING Scientific Decade. The IAHS Ltd staff also worked together to launch the HSJ Digest in 2024,

Page 2

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED Report of the Trustees For the Year Ended 31 December 2024 (Cont.)

a new vehicle for promoting the IAHS journal, Hydrological Sciences Journal (HSJ) , which has been positively received.

During 2023 IAHS launched the third IAHS Scientific Decade (2023-2032), named HELPING (Hydrology Engaging Local People IN one Global world). The scientific decades are a means to set the research agenda through collaborative forces. The overall aim with a scientific decade is to accumulate knowledge and streamline the efforts so that coherent engagement, sharing and focus accelerate scientific knowledge and understanding of a specific hydrological problem or phenomena. It stimulates vivid discussions between young and senior scientists globally (https://iahs.info/Initiatives/Scientific-Decades/). HELPING follows the successful scientific decades of Panta Rhei (Change) from 2013–2022 and Predictions in Ungauged Basins (Predictions) from 2003–2012.

The HELPING IAHS Scientific Decade is dedicated to local solutions under the global water crisis. This decade is a bottom-up process empowered by local hydrologists and scientists using open science and local data/methods when solving local water problems. We envisage that the building of local knowledge and cooperation will inform scientists working under similar situations or facing unexpected events worldwide. 31 HELPING Working Groups have been established across three themes, each with a Theme Leader under the guidance of the HELPING Decade Chair. A new Chair for the HELPING Decade was appointed in 2024 to adhere to the format of previous decades with biennial terms for the Chair. Also, in 2024 the HELPING vision community paper was published

(https://www.tandfonline.com/doi/full/10.1080/02626667.2024.2355202). The online HELPING Conference in November 2024 was attended by 95 participants, and included Working Group updates across all themes, discussion sessions and audience engagement.

One of the main charitable activities continues to be the support of hydrologists, particularly in the early stage of their career and from financially disadvantaged countries, to attend meetings.

In 2018, IAHS launched a new travel award, the Sivapalan Young Scientists Travel Award (SYSTA) which aims to: (1) strengthen attendance at IAHS meetings of early career hydrologists from financially disadvantaged countries (FDC); and (2) foster high quality science among a new generation of hydrologists. Applications are considered from early career scientists (normally within 5 years of PhD award) who are giving a presentation at the IAHS meeting, who grew up and now reside in a financially disadvantaged country and are first author of a paper published in the Association’s journals or in another listed hydrological journal. Applications are reviewed by the IAHS SYSTA Committee. Every year funding for up to 10 awards is allocated to the scheme, in 2024 the allocation was for 9 awards. The award is limited to a maximum amount per individual for covering registration fee, visa fee (if necessary), accommodation, funds for subsistence and transport. The maximum award amount is €3,200 and is limited to one intercontinental award per person. To reduce the financial risk in dealing with individuals, the cost of flights and meeting registration is paid directly to the suppliers. Accommodation for awardees is also booked and paid directly to the suppliers to provide benefits for interaction and support between SYSTA awardees. IAHS continues to provide comprehensive support to SYSTA applicants and awardees. For example, applicants who submit incomplete applications are given feedback and permitted to resubmit their applications. The IAHS Executive Secretary administers the applications and awards, including booking flights and accommodation, arranging expenses reimbursements for the awardees, and maintaining excellent communication and support for the awardees.

The awards made in 2024 under the SYSTA scheme are summarised at: https://iahs.info/About- IAHS/SYSTA-Grants/2024-systa-awards/. Two awards were made to attend the ICCE International Symposium in Eichstätt-Ingolstadt, Germany, on 24–26 July

Page 3

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED Report of the Trustees

For the Year Ended 31 December 2024 (Cont.)

  1. Five applications were received with applications from Algeria, India, Iran, Kenya, and Russia. Although the number of female applications was low and only one award made to a female, analysis of all SYSTA applications since the scheme started shows that the success rate of eligible female applicants (60%) is higher than for males (55%).

A second round of SYSTA awards was made to attend the 9th IWRM/14th STAHY/1st EBHE joint meeting in Florianópolis, Brazil, 4–7 November 2024. 35 applications were received from these countries: Cameroon, Côte d'Ivoire, Democratic Republic of Congo, Egypt, Ethiopia, India, Lesotho, Malaysia, Morocco, Niger, Nigeria, Somalia, South Africa, Sri Lanka, Togo and Tunisia. Four awards were made but unfortunately one awardee was unable to attend due to visa issues. All awards were to males.

A third round of SYSTA awards was made to attend the inaugural IAHS Academy in Cairo, Egypt in July 2024. 25 applications were received, and three awards were made: one to a female from Ghana, one to a female from Egypt and one to a male from Brazil. Although the Academy was unable to go ahead due to logistical reasons these awards will be transferred to the rescheduled IAHS Academy in January 2026 in China.

Two new IAHS Awards were launched in 2022, both named after women, and the first awards made in 2023. The Falkenmark Award (named after Malin Falkenmark) highlights the importance of capacity building and knowledge/data gathering in FDCs. It is awarded annually for the best PhD thesis by a candidate from a FDC who has performed the PhD work in one or more financially disadvantaged countries. The 2024 recipient was a male from Senegal. The Frances Watkins Memorial Award recognises her immense contribution to Hydrological Sciences Journal (HSJ) for 27 years. It is awarded annually to an HSJ paper whose structure, presentation and writing are exemplary. The 2024 award was made to a male author from the USA.

The ‘IAHS Digital Water Globe’ (DWG) is a web platform intended to effectively link and display global hydrological knowledge and scientific findings, and to facilitate new networking and knowledge management. The DWG is linked to the IAHS website and members encouraged to contribute personal profiles, case studies and time series data https://iahs.info/Initiatives/digital-water-globe/. The project development phase concluded in October 2023, taking account of feedback on the DWG from IAHS members. An Editor in Chief and Associate Editors were appointed in 2024 with the aim of increasing the number and range of contributions.

Registered Charity Donations: In 2024 IAHS provided £8,000 to WaterNet to fund early career African hydrologists to attend the annual WaterNet Symposium in Maseru, Lesotho, in October 2024. The donation was used to provide partial or full funding support for 9 female and 5 male early career hydrologists (MSc and PhD students, postdoctoral researchers, employees in NGOs and private companies) from Southern Africa to participate.

The £1,500 allocated to the IAHS Committee for Africa was used to support an IAHS officer and African early career scientist to attend the EGU General Assembly in Vienna, Austria, in April 2024. £12,000 was also allocated to support a second workshop organised by the Latin American Regional Committee and held in Santiago, Chile, in March 2024 to strengthen water sector stakeholder networks and representation of IAHS in Latin America. Funds were used for the meeting rooms, accommodation and meals, and local transport. The increased activity and interest in hydrological sciences generated in Latin America has resulted in a special issue of HSJ on Advances in hydrological science in Latin America (manuscript deadline June 2025) and a successful meeting grant application to IUGG to support the 9th IWRM/14th STAHY/1st EBHE joint meeting in Florianópolis, Brazil, in November 2024. The funding award was administered by IAHS Ltd to support the attendance costs of nine participants selected by the Local Organising Committee (2 females from Peru and Mexico and 7 males from Bolivia, Colombia, Chile, India, Peru, Turkey, and Uruguay).

Page 4

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED Report of the Trustees

For the Year Ended 31 December 2024 (Cont.)

FINANCIAL REVIEW

IAHS Ltd’s activities are now primarily funded by royalties from publishing the Hydrological Sciences Journal (HSJ) , and the annual grant from the International Union of Geodesy and Geophysics (IUGG). The royalties stabilised in 2023 after a dip in 2022 due to changes in the US dollar exchange rate, variations in how the journal is bundled in the sales packages and shifts in library access budgets of the subscribing institutions. As a consequence of the reduced income, increase in IAHS Ltd staffing to enhance communication, and increased expenditure on travel grants and the development of the Digital Water Globe, IAHS Ltd Board made a decision to reduce spending in 2024 to ensure long-term financial stability and maintenance of sufficient reserves in case of a change in income. As a result of lower expenses in 2024 there was a surplus of £42,322. The reserves stand at £524,374, as shown in the Statement of Financial Activities.

Reserves policy

IAHS has been effective in spending down the reserves accumulated in 2020–21 during the COVID-19 pandemic to support and accelerate Association activities, in line with its charitable status. 2024 initiatives in IAHS were funded to support communication, collaboration and engagement such as the Digital Water Globe and activities of the Regional Committees and IAHS Scientific Decades. Much of the reserves are held in fixed-term deposit accounts for the purpose of enabling the activities of the charitable company to continue in the event of difficulties such as staff illness, increase in suppliers’ prices, etc., and to provide funds for exceptional purchases. The charitable company will aim to maintain its reserves at approximately 100% of annual direct and operating costs as this is considered to be a suitable level. As the reserves stand at more than 100% of annual expenditure, it is planned to use some capital for travel grants and other expenditure supporting hydrologists from financially disadvantaged countries in 2025 and subsequent years, and also to support the IAHS Regional Committees and the IAHS Digital Water Globe.

PLANS FOR FUTURE PERIODS

The main activities will continue to be provision of support for IAHS community science initiatives and communications, for IAHS individual members and officers, and IAHS publishing. A new funding mechanism for IAHS Regional Committees was launched in 2025 to support and mentor the regional hydrological community through networking activities and connecting the regional hydrological community with the global stage. IAHS will continue promoting Equality, Diversity and Inclusion (EDI), led by the IAHS EDI Champion appointed in 2024. IAHS Ltd staff training and development continue, with plans to attend a suitable course on collaborative working and also for the whole team to participate in the IAHS Scientific Assembly in Roorkee, India, in October 2025 to support IAHS members and officers and HSJ. With the current agreement to support the IAHS Digital Water Globe ending in March 2026, IAHS is evaluating the future arrangements for the Digital Water Globe. IAHS is also reviewing its social media communications channels and strategy to ensure that communications are aligned with IAHS values and member preferences.

The SYSTA scheme was re-advertised through IAHS eNews for participation in the XIIth IAHS Scientific Assembly in Roorkee, India, in October 2025 and also the new IAHS Academy. The IAHS Academy will organise summer/winter short schools, training and educational programmes to advance and promote hydrological sciences globally, particularly engaging, training and valuing the next generation of hydrologists.

Page 5

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED Report of the Trustees For the Year Ended 31 December 2024 (Cont.)

TRUSTEES’ RESPONSIBILITIES IN RELATION TO THE FINANCIAL STATEMENTS

The trustees (who are also directors of International Association of Hydrological Sciences Limited) are responsible for preparing the Trustees’ Annual Report and the financial statements in accordance with applicable law and United Kingdom Accounting Standards (United Kingdom Generally Accepted Accounting Practice).

Company law requires the trustees to prepare financial statements for each financial year. Under company law the trustees must not approve the financial statements unless they are satisfied that they give a true and fair view of the state of affairs of the charitable company and of the incoming resources and application of resources, including the income and expenditure, of the charitable company for that period. In preparing these financial statements the trustees are required to:

  1. select suitable accounting policies and apply them consistently;

  2. observe the methods and principles in the Charities SORP 2019 (FRS 102);

  3. make judgements and estimates that are reasonable and prudent;

  4. state whether applicable UK Accounting Standards have been followed, subject to any material departures disclosed and explained in the financial statements;

  5. prepare the financial statements on a going concern basis unless it is inappropriate to presume that the charitable company will continue in operation.

The trustees are responsible for keeping proper accounting records which disclose with reasonable accuracy at any time the financial position of the charitable company and to enable them to ensure that the financial statements comply with the Companies Act 2006. They are also responsible for safeguarding the assets of the charitable company and, hence, for taking reasonable steps for the prevention and detection of fraud and other irregularities.

This report was approved by the board of directors and trustees on 15 August 2025 and signed on its behalf by:

Prof K Heal Trustee

Page 6

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Independent Examiner’s report to the Trustees of International Association of Hydrological Sciences Limited

I report to the charity trustees on my examination of the accounts of the company for the year ended 31 December 2024, which are set out on pages 8 to 16.

Responsibilities and basis of report

As the charity’s trustees (and also its directors for the purposes of company law) you are responsible for the preparation of the accounts in accordance with the requirements of the Companies Act 2006 (‘the 2006 Act’).

Having satisfied myself that the accounts of the company are not required to be audited under Part 16 of the 2006 Act and are eligible for independent examination, I report in respect of my examination of your company’s accounts carried out under section 145 of the Charities Act 2011 (‘the 2011 Act’). In carrying out my examination I have followed all the Directions given by the Charity Commission under section 145(5)(b) of the 2011 Act.

Independent examiner’s statement

I have completed my examination. I confirm that no matters have come to my attention in connection with the examination giving me cause to believe that in any material respect:

  1. accounting records were not kept in respect of the company as required by section 386 of the 2006 Act; or

  2. the accounts do not accord with those records; or

  3. the accounts do not comply with the accounting requirements of section 396 of the 2006 Act other than any requirement that the accounts give a ‘true and fair view’ which is not a matter considered as part of an independent examination; or

  4. the accounts have not been prepared in accordance with the methods and principles of the Statement of Recommended Practice for accounting and reporting by charities applicable to charities preparing their accounts in accordance with the Financial Reporting Standard applicable in the UK and Republic of Ireland (FRS 102).

I have no concerns and have come across no other matters in connection with the examination to which attention should be drawn in this report in order to enable a proper understanding of the accounts to be reached.

S J Bates FCA

Wenn Townsend Accountants Limited 10 Broad Street Abingdon Oxfordshire OX14 3LH

Dated: 19 August 2025

Page 7

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Statement of Financial Activities (including Income and Expenditure Account) For the Year Ended 31 December 2024

Notes Unrestricted Restricted Total
2024 2023
£ £ £ £
INCOME FROM:
Grants - 41,421 41,421 29,422
Donations - 11,468 11,468 14,584
Book sales and page charges 497 - 497 330
Hydrological Sciences Journal 205,490 - 205,490 191,414
Sundry income 5,630 - 5,630 30,735
Investment income 12,069 - 12,069 8,102
———— ———— ———— ————
Total income 223,686 52,889 276,575 274,587
———— ———— ———— ————
EXPENDITURE ON:
Cost of producing publications 3 74,496 4,785 79,281 87,688
Charitable activities 4 20,676 55,325 76,001 182,087
Support and governance costs 5 78,971 - 78,971 77,782
———— ———— –––––––– ––––––––
Total expenditure 174,143 60,110 234,253 347,557
———— ———— –––––––– –––––––
NET INCOME FOR THE YEAR 49,543 (7,221) 42,322 (72,970)
Transfers between funds (6,140) 6,140 - -
Total funds brought forward 472,630 9,421 482,051 555,021
———— ———— –––––––– –––––––
TOTAL FUNDS CARRIED FORWARD 13/14 516,033 8,340 524,373 482,051
———— ———— –––––––– –––––––

The statement of financial activities includes all gains and losses recognised in the year.

All incoming resources and resources expended derive from continuing activities.

The notes on pages 11 to 16 form part of these financial statements

Page 8

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Statement of Financial Activities (including Income and Expenditure Account) – Previous Year For the Year Ended 31 December 2024 (Comparative figures for 2023)

Notes Unrestricted Restricted Total
2023
£ £ £
INCOME FROM:
Grants - 29,422 29,422
Donations - 14,584 14,584
Book sales and page charges 330 - 330
Hydrological Sciences Journal 191,414 - 191,414
Sundry income 30,735 - 30,735
Investment income 8,102 - 8,102
———— ———— ————
Total income 230,581 44,006 274,587
———— ———— ————
EXPENDITURE ON:
Cost of producing publications 3 70,834 16,854 87,688
Charitable activities 4 22,320 159,767 182,087
Support and governance costs 5 77,782 - 77,782
———— ———— ––––––––
Total expenditure 170,936 176,621 347,557
———— ———— ––––––––
NET INCOME FOR THE YEAR 59,645 (132,615) (72,970)
Transfers between funds (104,858) 104,858 -
Total funds brought forward 517,843 37,178 555,021
———— ———— ––––––––
TOTAL FUNDS CARRIED FORWARD 13/14 472,630 9,421 482,051
———— ———— ––––––––

The statement of financial activities includes all gains and losses recognised in the year.

All incoming resources and resources expended derive from continuing activities.

The notes on pages 11 to 16 form part of these financial statements

Page 9

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Balance Sheet at 31 December 2024

2024 2023
Notes £ £ £ £
FIXED ASSETS
Tangible assets 9 1,432 2,737
CURRENT ASSETS
Stocks 10 4,375 5,325
Debtors 11 16,348 46,246
Cash at bank and in hand 548,466 491,445
––––––– –––––––
569,189 543,016
CREDITORS:amounts falling
due within one year 12 46,248 63,702
———— ————
NET CURRENT ASSETS 522,941 479,314
––––––– –––––––
TOTAL ASSETS LESS
CURRENT LIABILITIES 524,373 482,051
––––––– –––––––
FUNDS:
Unrestricted funds 13 516,033 472,630
Restricted funds 14 8,340 9,421
––––––– –––––––
TOTAL FUNDS 524,373 482,051
––––––– –––––––

For the year ending 31 December 2024 the company was entitled to exemption from audit under section 477 of the Companies Act 2006 relating to small companies.

Directors’ responsibilities:

Approved by the board of directors and trustees on 15 August 2025 and signed on its behalf by:

........................................................... Prof K Heal

Company no: 02676180

Page 10

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Notes to the Financial Statements For the Year Ended 31 December 2024

1. STATEMENT OF ACCOUNTING POLICIES

Basis of preparation of accounts

The financial statements have been prepared under the historical cost convention and in accordance with Accounting and Reporting by Charities: Statement of Recommended Practice applicable to charities preparing their accounts in accordance with the Financial Reporting Standard applicable in the UK and Republic of Ireland issued in October 2019, the Financial Reporting Standard applicable in the United Kingdom and Republic of Ireland (FRS 102), the Companies Act 2006, the Charities Act 2011 and UK Generally Accepted Accounting Practice.

Income

Income includes the total invoice value, excluding Value Added Tax, of book sales and page charges, and subscriptions during the year, together with grants, donations and interest received. Income from book sales and page charges is included in income in the period in which the charity is entitled to receipt.

Royalties are included as income in the period in which the relevant journal volume is published.

Donations and grants are included as income when they are receivable.

Interest is included as income when it is receivable.

Expenditure

Expenditure is included in the Statement of Financial Activities on an accruals basis, excluding Value Added Tax.

Expenditure is attributable either to the cost of producing publications or to administration and is allocated on that basis.

Depreciation of tangible fixed assets

Depreciation is provided at the following annual rates in order to write off each asset over its useful life:

Plant and machinery etc

15% reducing balance and 25% straight line

Stocks

Stocks are stated at the lower of cost and net realisable value.

Net realisable value is based on estimated selling price less further costs to completion and disposal.

Foreign currencies

Transactions in foreign currencies are translated into Sterling at the rate ruling on the date of the transaction. Exchange differences are taken into account in arriving at the movement in total funds for the year.

Going concern

The financial statements have been prepared on a going concern basis as the trustees believe that no material uncertainties exist. The trustees have considered the level of funds held and the expected level of income and expenditure for 12 months from authorising these financial statements.

Page 11

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Notes to the Financial Statements For the Year Ended 31 December 2024

1. STATEMENT OF ACCOUNTING POLICIES (continued)

Fund accounting

Unrestricted general funds

These are funds which can be used in accordance with the objects of the charity at the discretion of the trustees.

Restricted funds

These are funds which can only be used for particular restricted purposes within the objects of the charity. Restrictions arise when specified by the donor or when funds are raised for a particular restricted purpose.

2. LEGAL STATUS OF THE CHARITY

The charity is a company limited by guarantee and has no share capital. The liability of each member in the event of a winding-up is limited to £1. At 31 December 2024 there were 4 members.

3. COST OF PRODUCING PUBLICATIONS 2024 2023
£ £
Opening stock 2,000 2,000
Publication production, stationery and advertising 15,227 27,643
Salaries 53,878 49,892
Office services 10,176 10,153
Closing stock (2,000) (2,000)
_ _
79,281 87,688
_ _
4. CHARITABLE ACTIVITIES 2024 2023
£ £
Donations 15,790 14,394
Grants 25,576 55,698
IAHS officers 21,250 51,969
IAHS bureau 1,886 23,967
IAHS website 11,499 36,059
_ _
76,001 182,087
_ _
5. SUPPORT AND GOVERNANCE COSTS 2024 2023
£ £
Salaries 54,938 62,326
Accountancy and legal fees 6,608 2,365
Bank and credit card charges 919 1,290
Sundry expenses 3,287 3,270
Depreciation and loss on disposal 1,305 2,530
Exchange rate (gain)/loss 4,288 (1,063)
Conference, travelling and workshop expenses 7,626 7,064
______ ______
78,971 77,782
______ ______

Page 12

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Notes to the Financial Statements For the Year Ended 31 December 2024

6. NET MOVEMENT IN FUNDS FOR THE YEAR

This is stated after charging:

2024 2023
£ £
Depreciation and loss on disposal of fixed assets 1,305 2,530
Independent examiner’s fee 750 750
______ _

7. TAXATION

There is no liability to corporation tax for the year.

8. STAFF COSTS, TRUSTEE REMUNERATION AND EXPENSES, AND THE COST OF KEY MANAGEMENT PERSONNEL

2024 2023
£ £
Salaries 100,444 104,466
Training - 208
Social security costs 3,840 4,444
Pension costs 4,531 3,100
_ ______
108,815 112,218
_ ______
The average monthly head count was 4 staff (2023: 4) and the number of full-time equivale
employees during the year was as follows:
2024 2023
Direct charitable work 1.00 1.00
Administrative 1.50 1.50
______ _
2.50 2.50
______ _

The average monthly head count was 4 staff (2023: 4) and the number of full-time equivalent employees during the year was as follows:

No employee received remuneration in excess of £60,000 (2023: nil). Pension costs are allocated to cost of producing publications or support and governance costs in proportion to the related staffing costs incurred and are wholly charged to unrestricted funds.

Travel and subsistence expenses were reimbursed to the following trustees: C Cudennec £365.

J-M Kileshye Onema has an advance of £8,375.

The key management personnel is the Manager whose employee benefits total £32,338 (2023: £38,611).

Page 13

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Notes to the Financial Statements For the Year Ended 31 December 2024

9. TANGIBLE FIXED ASSETS

9. TANGIBLE FIXED ASSETS
Plant and
Machinery etc.
£
Cost:
At 1 January 2024 13,407
Additions -
———
At 31 December 2024 13,407
______
Depreciation:
At 1 January 2024 10,670
Charge for the year 1,305
———
At 31 December 2024 11,975
______
Net book value:
At 31 December 2024 1,432
———
At 31 December 2023 2,737
———
10. STOCKS
2024 2023
£ £
Books and publications 2,000 2,000
Silver medals 2,375 3,325
______ ______
4,375 5,325
______ ______
11. DEBTORS
2024 2023
£ £
Trade debtors 24 74
Other debtors 727 1,153
Prepayments 15,597 45,019
______ ______
16,348 46,246
______ ______

Page 14

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Notes to the Financial Statements For the Year Ended 31 December 2024

12. CREDITORS: amounts falling due within one year

2024 2023
£ £
Trade creditors 462 7,030
Taxation and social security 1,922 2,584
Other creditors 753 664
Accruals 43,111 53,424
______ ______
46,248 63,702
______ ______

13. UNRESTRICTED FUNDS

UNRESTRICTED FUNDS
At 1 January Incoming Resources Transfers At 31
2024 resources expended December
2024
£ £ £ £
General reserve 447,040 223,686 (155,267) (30,148) 485,311
Designated fund - SYSTA 25,590 - (18,876) 24,008 30,722
_ _ _ _ _
472,630 223,686 (174,143) (6,140) 516,033
_ _ _ _ _
At 1 January Incoming Resources Transfers At 31
2023 resources expended December
2023
£ £ £ £
General reserve 503,933 230,581 (150,432) (137,042) 447,040
Designated fund - SYSTA 13,910 - (20,504) 32,184 25,590
_ _ _ _ _
517,843 230,581 (170,936) (104,858) 472,630
_ ______ _ ______ _

SYSTA – This represents funds set aside by the Association to make awards to early career hydrological scientists in financially disadvantaged countries for travel/attendance at IAHS meetings.

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INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Notes to the Financial Statements For the Year Ended 31 December 2024

14. RESTRICTED FUNDS
At 1 January Incoming Resources Transfers At 31
2024 resources expended December
2024
£ £ £ £
Editorial retreat 6,144 - - - 6,144
IUGG subvention - 41,421 (45,649) 4,228 -
Tison award - 625 (826) 201 -
HSJ awards - 1,250 (2,150) 900 -
Travel grants - 6,700 (6,700) 811 811
Editorial board meeting 3,277 2,893 (4,785) - 1,385
_ _ _ _ _
9,421 52,889 (60,110) 6,140 8,340
_ _ _ _ _
At 1 January Incoming Resources Transfers At 31
2023 resources expended December
2023
£ £ £ £
Editorial retreat 21,952 - (15,808} - 6,144
IUGG subvention 13,669 29,422 (147,244) 104,153 -
Tison award - 500 (802) 302 -
HSJ awards - 1,000 (1,403) 403 -
Travel grants - 10,318 (10,318) - -
Editorial board meeting 1,557 2,766 (1,046) - 3,277
_ _ _ _ _
37,178 44,006 (176,621) 104,858 9,421
_ _ _ _ _

Editorial retreat – This represents a donation received specifically to fund an editorial retreat.

IUGG subvention – This represents the annual subvention received from the IUGG for the purpose of contributing to the funding of the Association’s activities.

Tison award – This represents a donation received specifically to fund an annual prize.

HSJ awards – This represents donations received specifically to fund annual prizes.

Travel grants – This represents a donation received specifically to support the travel costs of members from financially disadvantaged countries to attend meetings.

Editorial board meeting – This represents a donation received specifically to fund an editorial board meeting and/or an annual reception for the Journal at an international conference.

Page 16

INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED

Detailed Income and Expenditure For the Year Ended 31 December 2024

2024 2023
£ £ £ £
TURNOVER
Grants 41,421 29,422
Donations 11,468 14,584
Book sales and page charges 497 330
Hydrological Sciences Journal 205,490 191,414
Sundry income 5,630 30,735
———— ————
264,506 266,485
COST OF SALES
Opening stock 2,000 2,000
Printing, postage, computer consumables,
stationery and advertising 15,227 27,643
Salaries 53,878 49,892
Office services 10,176 10,153
Closing stock (2,000) (2,000)
———— ————
(79,281) (87,688)
———— ————
185,225 178,797
OTHER INCOME
Bank interest 12,069 8,102
———— ————
197,294 186,899
CHARITABLE ACTIVITIES
Donations 15,790 14,394
Grants 25,576 55,698
IAHS officers 21,250 51,969
IAHS bureau 1,886 23,967
IAHS website 11,499 36,059
———— ————
(76,001) (182,087)
ADMINISTRATIVE EXPENSES
Salaries 54,938 62,326
Accountancy and legal fees 6,608 2,365
Bank and credit card charges 919 1,290
Sundry expenses 3,287 3,270
Depreciation and loss on disposal 1,305 2,530
Exchange rate (gain)/loss 4,288 (1,063)
Conference, travelling and workshop
expenses 7,626 7,064
———— ————
(78,971) (77,782)
———— ————
OPERATING SURPLUS/(DEFICIT)
FOR THE YEAR 42,322 (72,970)
———— ————

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